Researcher Details |

Gregory Hughes

Prof

Prof. Greg Hughes holds a B.Sc in Chemistry and a PhD in semiconductor physics from the University of Ulster, Northern Ireland. Following a two year post-doctoral position in the IBM research division at Yorktown Heights, he joined the School of Physical Sciences at Dublin City University where he still works. He spent a sabbatical year at the Technical University of Berlin on an Alexander von Humboldt research fellowship in 1994 and was a Visiting Research Professor at Boston University in 2001 and 2003. He is the author of over 170 research papers in the field of surface science and his current research team is working on projects relating to the characterisation of novel materials for use in the semiconductor device industry. He has recently completed a 5-year term as Vice-President for Research and Innovation. He has an ongoing interest in developing the research dimension of the European Consortium of Innovative Universities (ECIU) as one of the recently established European University Alliances.

Peer Reviewed Journal

	Year	Publication
	2022	O'Donnell, S.; Snelgrove, M.; Shiel, K.; Weiland, C.; Hughes, G.; Woicik, J.; O'Neill, D.; Jose, F.; McFeely, C.; O'Connor, R. (2022) 'Growth chemistry of cobalt nitride by plasma enhanced atomic layer deposition'. Materials Research Express, 9 (10). [DOI]
	2022	Snelgrove, M.; McFeely, C.; Hughes, G.; Weiland, C.; Woicik, J.C.; Shiel, K.; González, P.G.M.; Ornelas, C.; Solís-Canto, ; Cherkaoui, K.; Hurley, P.K.; Yadav, P.; Morris, M.A.; McGlynn, E.; O'Connor, R. (2022) 'Growth chemistry and electrical performance of ultrathin alumina formed by area selective vapor phase infiltration'. Microelectronic Engineering, 266 . [Link] [DOI]
	2022	McFeely, C.; Snelgrove, M.; Shiel, K.; Hughes, G.; Yadav, P.; Lundy, R.; Morris, M.A.; McGlynn, E.; O’Connor, R. (2022) 'Rapid area deactivation for blocking atomic layer deposition processes using polystyrene brush layers'. Journal of Materials Chemistry C, . [Link] [DOI]
	2018	Brady-Boyd, A; O' Connor, R; Armini, S; Selvaraju, V; Hughes, G; Bogan, J (2018) 'On the use of (3-trimethoxysilylpropyl) diethylenetriamine self-assembled monolayers as seed layers for the growth of Mn based copper diffusion barrier layers'. Applied Surface Science, 427 :260-266. [DOI]
	2018	Bogen, J; Selvaraju, V; Brady-Boyd, A; Hughes, G; O' Connor, R (2018) 'Synchrotron radiation study of metallic titanium deposited on dielectric substrates'. Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, 36 . [DOI]
	2018	Selvaraju, V.; Brady-Boyd, A.; O'Connor, R.; Hughes, G.; Bogan, J. (2018) 'Investigation of nitrogen incorporation into manganese based copper diffusion barrier layers for future interconnect applications'. Surfaces And Interfaces, 13 . [Link] [DOI]
	2018	Flynn, SP; Bogan, J; Lundy, R; Khalafalla, KE; Shaw, M; Rodriguez, BJ; Swift, P; Daniels, S; O' Connor, R; Hughes, G; Kelleher, SM (2018) 'Nitrogen reactive ion etch processes for the selective removal of poly-(4-vinylpyridine) in block copolymer films'. Nanotechnology, 29 . [DOI]
	2017	Byrne, C; Brennan, B; Lundy, R; Bogan, J; Brady, A; Gomeniuk, YY; Monaghan, S; Hurley, PK; Hughes, G (2017) 'Physical, chemical and electrical characterisation of the diffusion of copper in silicon dioxide and prevention via a CuAl alloy barrier layer system'. Materials Science in Semiconductor Processing, 63 :227-236. [DOI]
	2017	Flynn, SP; Monaghan, R; Bogan, J; McKenna, M; Cowley, A; Daniels, S; Hughes, G; Kelleher, SM (2017) 'Controlling wettability of PECVD-deposited dual organosilicon/carboxylic acid films to influence DNA hybridisation assay efficiency'. Journal of Materials Chemistry B, 5 :8378-8388. [DOI]
	2017	Budania, P; Baine, P; Montgomery, J; McGeough, C; Cafolla, T; Modreanu, M; McNeill, D; Mitchell, N; Hughes, G; Hurley, P (2017) 'Long-term stability of mechanically exfoliated MoS2 flakes'. MRS Communications, 7 :813-818. [DOI]
	2016	Walsh L.; Weiland C.; McCoy A.; Woicik J.; Lee R.; Lysaght P.; Hughes G. (2016) 'Investigation of the thermal stability of Mo-In0.45Ga0.47As for applications as source/drain contacts'. Journal of Applied Physics, 120 (13). [DOI]
	2016	Bogan, J; Lundy, R; McCoy, AP; O' Connor, R; Byrne, C; Walsh, L; Casey, P; Hughes, G (2016) 'In-situ surface and interface study of atomic oxygen modified carbon containing porous low-kappa dielectric films for barrier layer applications'. Journal of Applied Physics, 120 . [DOI]
	2016	Walsh, LA; Weiland, C; McCoy, AP; Woicik, JC; Lee, RTP; Lysaght, P; Hughes, G (2016) 'Investigation of the thermal stability of Mo-In0.45Ga0.47As for applications as source/drain contacts'. Journal of Applied Physics, 120 . [DOI]
	2016	Byrne, C; Brady, A; Walsh, L; Mccoy, AP; Bogan, J; McGlynn, E; Rajani, KV; Hughes, G (2016) 'Chemical and electrical characterisation of the segregation of Al from a CuAl alloy (90%:10% wt) with thermal anneal'. Thin Solid Films, 599 :59-63. [DOI]
	2016	Byrne C.; Brennan B.; McCoy A.; Bogan J.; Brady A.; Hughes G. (2016) 'In Situ XPS Chemical Analysis of MnSiO3 Copper Diffusion Barrier Layer Formation and Simultaneous Fabrication of Metal Oxide Semiconductor Electrical Test MOS Structures'. ACS applied materials & interfaces, 8 (4):2470-2477. [DOI]
	2016	O'Connor R.; Bogan J.; McCoy A.; Byrne C.; Hughes G. (2016) 'A photoemission study of the effectiveness of nickel, manganese, and cobalt based corrosion barriers for silicon photo-anodes during water oxidation'. Journal of Applied Physics, 119 (19). [DOI]
	2016	Mirabelli, G.; McGeough, C.; Schmidt, M.; McCarthy, E.K.; Monaghan, S.; Povey, I.M.; McCarthy, M.; Gity, F.; Nagle, R.; Hughes, G.; Cafolla, A.; Hurley, P.K.; Duffy, R. (2016) 'Air sensitivity of MoS2, MoSe2, MoTe2, HfS2, and HfSe2'. Journal of Applied Physics, 120 . [Link] [DOI]
	2015	McCoy, AP and Bogan, J and Walsh, L and Byrne, C and O’Connor, R and Woicik, JC and Hughes, G (2015) 'The impact of porosity on the formation of manganese based copper diffusion barrier layers on low-$\kappa$ dielectric materials'. 48 (32).
	2015	Gray C.; Cullen J.; Byrne C.; Hughes G.; Buyanova I.; Chen W.; Henry M.; McGlynn E. (2015) 'Growth of isotopically enriched ZnO nanorods of excellent optical quality'. Journal of Crystal Growth, 429 :6-12. [DOI]
	2015	McCoy A.; Bogan J.; Walsh L.; Byrne C.; O'Connor R.; Woicik J.; Hughes G. (2015) 'The impact of porosity on the formation of manganese based copper diffusion barrier layers on low-κ dielectric materials'. Journal of Physics D - Applied Physics, 48 (32). [DOI]
	2015	Chauhan L.; Gajula D.; Mc Neill D.; Hughes G. (2015) 'High temperature thermal stability studies of ultrathin Al2O3 layers deposited on native oxide and sulphur passivated InGaAs surfaces'. Microelectronic Engineering, 147 :249-253. [DOI]
	2015	Chauhan L.; Gupta S.; Jaiswal P.; Bhat N.; Shivashankar S.; Hughes G. (2015) 'Modification of metal-InGaAs Schottky barrier behaviour by atomic layer deposition of ultra-thin Al2O3 interlayers'. Thin Solid Films, 589 :264-267. [DOI]
	2015	O'Connor R.; Bogan J.; Fleck N.; McCoy A.; Walsh L.; Byrne C.; Casey P.; Hughes G. (2015) 'Growth and characterization of thin manganese oxide corrosion barrier layers for silicon photoanode protection during water oxidation'. Solar Energy Materials and Solar Cells, 136 :64-69. [DOI]
	2015	McCoy, AP; Bogan, J; Brady, A; Hughes, G (2015) 'Oxidation of ruthenium thin films using atomic oxygen'. Thin Solid Films, 597 :112-116. [DOI]
	2014	Walsh L.; Hughes G.; Weiland C.; Woicik J.; Lee R.; Loh W.; Lysaght P.; Hobbs C. (2014) 'Ni-(In,Ga)As alloy formation investigated by hard-X-ray photoelectron spectroscopy and X-ray absorption spectroscopy'. Physical Review Applied, 2 (6). [DOI]
	2014	McCoy A.; Bogan J.; Walsh L.; Byrne C.; Casey P.; Hughes G. (2014) 'The addition of aluminium to ruthenium liner layers for use as copper diffusion barriers'. Applied Surface Science, 307 :677-681. [DOI]
	2014	Chellappan R.; Gajula D.; McNeill D.; Hughes G. (2014) 'High temperature thermal stability of the HfO2/Ge (100) interface as a function of surface preparation studied by synchrotron radiation core level photoemission'. Applied Surface Science, 292 :345-349. [DOI]
	2014	Chellappan R.; Gajula D.; McNeill D.; Hughes G. (2014) 'High-temperature thermal stability study of 1 nm Al2O 3 deposited on InAs surfaces investigated by synchrotron radiation based photoemission spectroscopy'. Journal of Physics D - Applied Physics, 47 (5). [DOI]
	2014	Bogan J.; McCoy A.; O'Connor R.; Casey P.; Byrne C.; Hughes G. (2014) 'Photoemission study of the identification of Mn silicate barrier formation on carbon containing low-κ dielectrics'. Microelectronic Engineering, 130 :46-51. [DOI]
	2014	Lin, J.; Walsh, L.; Hughes, G.; Woicik, J.C.; Povey, I.M.; O'Regan, T.P.; Hurley, P.K. (2014) 'A combined capacitance-voltage and hard x-ray photoelectron spectroscopy characterisation of metal/Al2O3/In0.53Ga 0.47As capacitor structures'. Journal of Applied Physics, 116 . [Link] [DOI]
	2014	Chauhan L.; Gajula D.; McNeill D.; Hughes G. (2014) 'High temperature thermal stability investigations of ammonium sulphide passivated InGaAs and interface formation with Al2O3 studied by synchrotron radiation based photoemission'. Applied Surface Science, 317 :696-700. [DOI]
	2014	Chauhan L.; Hughes G. (2014) 'Synchrotron radiation photoemission study of interface formation between MgO and the atomically clean In0.53Ga0.47As surface'. Physica Status Solidi - Rapid Research Letetrs, 8 (2):167-171. [DOI]
	2014	Kitsara, M.; Nwankire, C.E.; Walsh, L.; Hughes, G.; Somers, M.; Kurzbuch, D.; Zhang, X.; Donohoe, G.G.; O'Kennedy, R.; Ducrée, J. (2014) 'Spin coating of hydrophilic polymeric films for enhanced centrifugal flow control by serial siphoning'. Microfluidics and Nanofluidics, 16 . [Link] [DOI]
	2014	Hughes, Greg (2014) 'Photoemission study of carbon depletion from ultra low-κ carbon doped oxide surfaces during the growth of Mn silicate barrier layers'. .
	2013	Chellappan R.; Rao Gajula D.; McNeill D.; Hughes G. (2013) 'Soft x-ray photoemission study of the thermal stability of the Al 2O3/Ge (100) interface as a function of surface preparation'. Journal of Applied Physics, 114 (8). [DOI]
	2013	Casey P.; McCoy A.; Bogan J.; Byrne C.; Walsh L.; O'Connor R.; Hughes G. (2013) 'In situ investigations into the mechanism of oxygen catalysis on ruthenium/manganese surfaces and the thermodynamic stability of Ru/Mn-based copper diffusion barrier layers'. Journal of Physical Chemistry C, 117 (31):16136-16143. [DOI]
	2013	Chellappan R.; Li Z.; Hughes G. (2013) 'Synchrotron radiation photoemission study of the thermal annealing and atomic hydrogen cleaning of native oxide covered InAs(1 0 0) surfaces'. Applied Surface Science, 276 :609-612. [DOI]
	2013	McCoy A.; Casey P.; Bogan J.; Byrne C.; Hughes G. (2013) 'Investigation of the release of Si from SiO2 during the formation of manganese/ruthenium barrier layers'. Applied Physics Letters, 102 (20). [DOI]
	2013	Walsh L.; Hughes G.; Lin J.; Hurley P.; O'Regan T.; Cockayne E.; Woicik J. (2013) 'Hard x-ray photoelectron spectroscopy and electrical characterization study of the surface potential in metal/Al2O3/GaAs(100) metal-oxide-semiconductor structures'. Physical Review B - Condensed Matter and Materials Physics, 88 (4). [DOI]
	2013	Brennan, B; Kumarappan, K; Hughes, G (2013) 'Atomic hydrogen cleaning of In0.53Ga0.47As studied using synchrotron radiation photoelectron spectroscopy'. Physica Status Solidi - Rapid Research Letetrs, 7 :989-992. [DOI]
	2013	Chauhan L.; Hughes G. (2013) 'Thermal stability studies on atomically clean and sulphur passivated InGaAs surfaces'. Physica Status Solidi (A) Applications and Materials, 210 (3):519-522. [DOI]
	2013	Chellappan R.; Li Z.; Hughes G. (2013) 'High resolution photoemission study of interface formation between MgO and the selenium passivated InAs (1 0 0) surface'. Applied Surface Science, 285 (PARTB):153-156. [DOI]
	2013	Lozano J.; Bogan J.; Casey P.; McCoy A.; Hughes G.; Nellist P. (2013) 'Scanning transmission electron microscopy investigations of self-forming diffusion barrier formation in Cu(Mn) alloys on SiO2'. APL Materials, 1 (4). [DOI]
	2013	Chellappan R.; Hughes G. (2013) 'High-resolution photoemission comparison study of interface formation between MgO and the atomically clean and Se-passivated Ge(100) surfaces'. Physica Status Solidi - Rapid Research Letetrs, 7 (8):590-592. [DOI]
	2012	Lozano J.; Bogan J.; Casey P.; McCoy A.; Hughes G.; Nellist P. (2012) 'STEM Analysis Of Cu(Mn) Self-Forming Diffusion Barriers on SiO2 For Applications In The Semiconductor Industry'. Microscopy and Microanalysis, 18 :1842-1843. [DOI]
	2012	McCoy A.; Casey P.; Bogan J.; Lozano J.; Nellist P.; Hughes G. (2012) 'Chemical and structural investigations of the incorporation of metal manganese into ruthenium thin films for use as copper diffusion barrier layers'. Applied Physics Letters, 101 (23). [DOI]
	2012	Chauhan, L; Hughes, G (2012) 'High resolution synchrotron radiation based photoemission study of the in situ deposition of molecular sulphur on the atomically clean InGaAs surface'. Journal of Applied Physics, 111 . [DOI]
	2012	Murad, SNA; Baine, PT; McNeill, DW; Mitchell, SJN; Armstrong, BM; Modreanu, M; Hughes, G; Chellappan, RK (2012) 'Optimisation and scaling of interfacial GeO2 layers for high-kappa gate stacks on germanium and extraction of dielectric constant of GeO2'. Solid-State Electronics, 78 :136-140. [DOI]
	2012	Walsh L.; Hughes G.; Hurley P.; Lin J.; Woicik J. (2012) 'A combined hard x-ray photoelectron spectroscopy and electrical characterisation study of metal/SiO2/Si(100) metal-oxide- semiconductor structures'. Applied Physics Letters, 101 (24). [DOI]
	2012	Casey P.; Bogan J.; McCoy A.; Lozano J.; Nellist P.; Hughes G. (2012) 'Chemical and structural investigations of the interactions of Cu with MnSiO 3 diffusion barrier layers'. Journal of Applied Physics, 112 (6). [DOI]
	2012	O'Connor E.; Cherkaoui K.; Monaghan S.; O'Connell D.; Povey I.; Casey P.; Newcomb S.; Gomeniuk Y.; Provenzano G.; Crupi F.; Hughes G.; Hurley P. (2012) 'Observation of peripheral charge induced low frequency capacitance-voltage behaviour in metal-oxide-semiconductor capacitors on Si and GaAs substrates'. Journal of Applied Physics, 111 (12). [DOI]
	2011	Brennan, B; Milojevic, M; Hinkle, CL; Aguirre-Tostado, FS; Hughes, G; Wallace, RM (2011) 'Optimisation of the ammonium sulphide (NH4)(2)S passivation process on In0.53Ga0.47As'. Applied Surface Science, 257 :4082-4090. [DOI]
	2011	P.Casey, J. Bogan, J.G Lozano, P.D. Nellist, G. Hughes (2011) 'Chemical and structural investigation of the role of both metallic manganese and manganese oxide in the formation of manganese silicate barrier layers on SiO2 '. Journal of Applied Physics, 110 .
	2011	Oconnor R.; Hughes G. (2011) 'The effect of a post processing thermal anneal on pre-existing and stress induced electrically active defects in ultra-thin SiON dielectric layers'. Microelectronics and Reliability, 51 (3):524-528. [DOI]
	2011	O' Connor, E; Brennan, B; Djara, V; Cherkaoui, K; Monaghan, S; Newcomb, SB; Contreras, R; Milojevic, M; Hughes, G; Pemble, ME; Wallace, RM; Hurley, PK (2011) 'A systematic study of (NH4)(2)S passivation (22%, 10%, 5%, or 1%) on the interface properties of the Al2O3/In0.53Ga0.47As/InP system for n-type and p-type In0.53Ga0.47As epitaxial layers'. Journal of Applied Physics, 109 . [DOI]
	2011	Lozano, J.G.; Lozano-Perez, S.; Bogan, J.; Wang, Y.C.; Brennan, B.; Nellist, P.D.; Hughes, G. (2011) 'Interdiffusion and barrier layer formation in thermally evaporated Mn/Cu heterostructures on SiO2 substrates'. Applied Physics Letters, 98 . [Link] [DOI]
	2011	Casey P.; Bogan J.; Hughes G. (2011) 'Photoemission study of carbon depletion from ultralow-carbon doped oxide surfaces during the growth of Mn silicate barrier layers'. Journal of Applied Physics, 110 (12). [DOI]
	2011	Casey P.; Hughes G. (2011) 'High resolution photoemission study of the formation and thermal stability of Mg silicide on silicon'. Thin Solid Films, 519 (6):1861-1865. [DOI]
	2011	O'Connor, R.; Hughes, G.; Kauerauf, T. (2011) 'Time-Dependent Dielectric Breakdown and Stress-Induced Leakage Current Characteristics of 0.7-nm-EOT HfO2 pFETs'. IEEE Transactions on Device and Materials Reliability, 11 . [Link] [DOI]
	2011	Biswas M.; Jung Y.; Kim H.; Kumar K.; Hughes G.; Newcomb S.; Henry M.; McGlynn E. (2011) 'Microscopic origins of the surface exciton photoluminescence peak in ZnO nanostructures'. Physical Review B - Condensed Matter and Materials Physics, 83 (23). [DOI]
	2011	É. O’Connor, B. Brennan, V. Djara, K. Cherkaoui, S. Monaghan, S. B. Newcomb, R. Contreras, M. Milojevic, G. Hughes, M. E. Pemble, R. M. Wallace , and P.K. Hurley. (2011) 'A systematic study of (NH4)2S passivation (1%, 5%, 10%, 22%) on the interface properties of the Al2O3/In0.53Ga0.47-As/InP system for n and p-type In0.53Ga0.47-As epitaxial layers. É. O’Connor, B. Brennan, V. Djara, K. Cherkaoui, S. Monaghan, S. B. Newcomb, R. Contreras, M. Milojevic, G. Hughes, M. E. Pemble, R. M. Wallace , and P.K. Hurley. '. Journal of Applied Physics, 109 .
	2011	Patrick Casey, Barry Brennan, Justin Bogan and Greg Hughes. (2011) 'Synchrotron radiation photoemission study of in-situ manganese silicate formation on SiO2 for barrier layer applications Patrick Casey, Barry Brennan, Justin Bogan and Greg Hughes. '. APPLIED PHYSICS LETTERS (PRINT), 98 .
	2011	J. G. Lozano, J. Bogan, B. Brennan and G. Hughes (2011) 'Barrier behaviour and interdiffusion in thermally evaporated Mn/Cu heterostructures onto SiO2 substrates '. APPLIED PHYSICS LETTERS (PRINT), 98 .
	2011	Robert O’Connor, Greg Hughes, Thomas Kauerauf, Lars-Ake Ragnarsson. (2011) 'Reliability of thin ZrO2 gate dielectric layers '. Microelectronic Engineering, 51 :524-528.
	2011	Robert O’Connor, Greg Hughes, Thomas Kauerauf, (2011) 'The Effect of a Post Processing Thermal Anneal on Pre-existing and Stress Induced Electrically Active Defects in Ultra-thin SiON Dielectric Layers. '. Microelectronic Engineering, 51 :524-528.
	2011	Mahua Biswas, Yun S. Jung, Hong K. Kim, Kumarrappan K, Gregory J. Hughes, S.Newcomb, Martin O. Henry, Enda McGlynn (2011) 'A Study of the Microscopic Origins of the Surface Exciton Photoluminescence Peak seen in ZnO Nanostructures '. Physical Review B-Condensed Matter, 83 .
	2011	B. Brennan, M. Milojevic, C.L. Hinkle, F.S. Aguirre-Tostado, G. Hughes and R. M. Wallace, (2011) 'Optimisation of the ammonium sulphide (NH4)2S passivation process on In0.53Ga0.47As '. Applied Surface Science, 257 :4082-4090.
	2011	Casey P.; Bogan J.; Brennan B.; Hughes G. (2011) 'Synchrotron radiation photoemission study of in situ manganese silicate formation on SiO2 for barrier layer applications'. Applied Physics Letters, 98 (11). [DOI]
	2011	McDonnell S.; Brennan B.; Casey P.; Hughes G. (2011) 'High resolution photoemission study of the thermal stability of the HfO2/SiOx/Si(111) system'. Surface Science, 605 (23-24):1925-1928. [DOI]
	2010	Casey P.; Hughes G. (2010) 'Interfacial analysis of InP surface preparation using atomic hydrogen cleaning and Si interfacial control layers prior to MgO deposition'. Applied Surface Science, 256 (24):7530-7534. [DOI]
	2010	Miranda, E., Martin-Martinez, J., O'Connor, E., Hughes, G.,Casey, P., Cherkaoui, K.,Monaghan, S., Long, R., O'Connell, D., Hurley, P. K. (2010) 'Effects of the electrical stress on the conduction characteristics of metal gate/MgO/InP stacks '. Microelectronics Journal, 49 :9-11.
	2010	D. Byrne, E. McGlynn, M.O. Henry, K. Kumar, G. Hughes (2010) 'A novel, substrate independent three step process for the growth of uniform ZnO nanorod arrays '. Thin Solid Films, 518 :4489-4492.
	2010	D. Byrne, E. McGlynn, K. Kumar, M. Biswas, M. O. Henry and G. Hughes (2010) 'A study of drop-coated and chemical bath-deposited buffer layers for vapour phase deposition of large area, aligned, zinc oxide nanorod arrays '. CRYSTAL GROWTH & DESIGN (PRINT), 10 :2400-2408.
	2010	Patrick Casey and Greg Hughes (2010) 'Interfacial analysis of InP surface preparation using atomic hydrogen cleaning and Si interfacial control layers prior to MgO deposition '. Applied Surface Science, 256 :7530-7534.
	2010	Patrick Casey and Greg Hughes. (2010) 'Photoemission Study of the SiO2 conversion mechanism to magnesium Silicate '. Journal of Applied Physics, 107 .
	2010	B. Brennan and G. Hughes (2010) 'Identification and thermal stability of the native oxides on InGaAs using synchrotron radiation based photoemission '. Journal of Applied Physics, 108 .
	2010	Patrick Casey and Greg Hughes (2010) 'Interfacial analysis of InP surface preparation using atomic hydrogen cleaning and Si interfacial control layers prior to MgO deposition '. Applied Surface Science, 256 :7530-7534.
	2010	Young R.; Mereni L.; Petkov N.; Knight G.; Dimastrodonato V.; Hurley P.; Hughes G.; Pelucchi E. (2010) 'Low-angle misorientation dependence of the optical properties of InGaAs/InAlAs quantum wells'. Journal of Crystal Growth, 312 (9):1546-1550. [DOI]
	2010	Brennan, B; McDonnell, S; Hughes, G (2010) 'Photoemission studies of the initial interface formation of ultrathin MgO dielectric layers on the Si(111) surface'. Thin Solid Films, 518 :1980-1984. [DOI]
	2010	O'Connor, R.; Hughes, G.; Casey, P.; Newcomb, S.B. (2010) 'Degradation and breakdown characteristics of thin MgO dielectric layers'. Journal of Applied Physics, 107 . [Link] [DOI]
	2010	Brennan, B.; Hughes, G. (2010) 'Identification and thermal stability of the native oxides on InGaAs using synchrotron radiation based photoemission'. Journal of Applied Physics, 108 . [Link] [DOI]
	2010	Patrick Casey , Greg Hughes (2010) 'Photoemission study of the SiO conversion mechanism to magnesium silicate'. Journal of Applied Physics, 107 :0741071-0741075.
	2010	Byrne D.; McGlynn E.; Kumar K.; Biswas M.; Henry M.; Hughes G. (2010) 'A study of drop-coated and chemical bath-deposited buffer layers for vapor phase deposition of large area, aligned, zinc oxide nanorod arrays'. Crystal Growth and Design, 10 (5):2400-2408. [DOI]
	2010	Casey P.; Hughes G. (2010) 'Photoemission study of the SiO2 conversion mechanism to magnesium silicate'. Journal of Applied Physics, 107 (7). [DOI]
	2009	C. L. Hinkle , M. Milojevic , Barry Brennan , A. M. Sonnet , F. S. Aguirre-Tostado , Greg Hughes , E. M. Vogel , R. M. Wallace (2009) 'Detection of Ga suboxides and their impact on III-V passivation and fermi-level pinning'. APPLIED PHYSICS LETTERS (PRINT), 94 :162101-1.
	2009	Miranda, E; O' Connor, E; Cherkaoui, K; Monaghan, S; Long, R; O' Connell, D; Hurley, PK; Hughes, G; Casey, P (2009) 'Electrical characterization of the soft breakdown failure mode in MgO layers'. Applied Physics Letters, 95 . [DOI]
	2009	Reid, I; Zhang, YF; Demasi, A; Blueser, A; Piper, L; Downes, JE; Matsuura, A; Hughes, G; Smith, KE (2009) 'Electronic structure of the organic semiconductor copper tetraphenylporphyrin (CuTPP)'. Applied Surface Science, 256 :720-725. [DOI]
	2009	Brennan, B; Milojevic, M; Kim, HC; Hurley, PK; Kim, J; Hughes, G; Wallace, RM (2009) 'Half-Cycle Atomic Layer Deposition Reaction Study Using O-3 and H2O Oxidation of Al2O3 on In0.53Ga0.47As'. Electrochemical and Solid-State Letters, 12 :205-207. [DOI]
	2009	Long, RD; O' Connor, E; Newcomb, SB; Monaghan, S; Cherkaoui, K; Casey, P; Hughes, G; Thomas, KK; Chalvet, F; Povey, IM; Pemble, ME; Hurley, PK (2009) 'Structural analysis, elemental profiling, and electrical characterization of HfO2 thin films deposited on In0.53Ga0.47As surfaces by atomic layer deposition'. Journal of Applied Physics, 106 . [DOI]
	2009	McDonnell, S; Brennan, B; Hughes, G (2009) 'High resolution photoemission study of SiOx/Si(111) interface disruption following in situ HfO2 deposition'. Applied Physics Letters, 95 . [DOI]
	2009	Miranda E.; O'Connor E.; Hughes G.; Casey P.; Cherkaoui K.; Monaghan S.; Long R.; O'Connell D.; Hurley P. (2009) 'Degradation dynamics and breakdown of MgO gate oxides'. Microelectronic Engineering, 86 (7-9):1715-1717. [DOI]
	2009	Casey P.; O'Connor E.; Long R.; Brennan B.; Krasnikov S.; O'Connell D.; Hurley P.; Hughes G. (2009) 'Growth, ambient stability and electrical characterisation of MgO thin films on silicon surfaces'. Microelectronic Engineering, 86 (7-9):1711-1714. [DOI]
	2009	P. Casey, E. O’Connor, R. Long, B. Brennan, D.O’Connell, P. Hurley and G. Hughes (2009) 'Growth, Ambient Stability and Electrical Characterisation of MgO thin films on Si '. Microelectronic Engineering, 86 :1711-1714.
	2009	B. Brennan, M. Milojevic, F.S. Aguirre-Tostado, C.L. Hinkle, P.K. Hurley, J. Kim, G. Hughes, and R.M. Wallace (2009) 'Half-cycle ALD reaction study using O3 and H2O oxidation of the (NH4)2S passivated In0.53Ga0.47As surface '. Electrochemistry Communications, 12 .
	2009	Miranda E.; Martin-Martinez J.; O'Connor E.; Hughes G.; Casey P.; Cherkaoui K.; Monaghan S.; Long R.; O'Connell D.; Hurley P. (2009) 'Effects of the electrical stress on the conduction characteristics of metal gate/MgO/InP stacks'. Microelectronics and Reliability, 49 (9-11):1052-1055. [DOI]
	2009	C. L. Hinkle, M. Milojevic, B. Brennan, A. M. Sonnet, F. S. Aguirre-Tostado, G. J. Hughes, E. M. Vogel, and R. M. Wallace. (2009) 'Detection of Ga suboxides and their impact on III-V passivation and Fermi-level pinning '. APPLIED PHYSICS LETTERS (PRINT), 94 .
	2009	E. Miranda, E. O’Connor, G. Hughes, P. Casey, K. Cherkaoui, S. Monaghan, R. Long, D. O’Connell, P.K. Hurley. (2009) 'Degradation dynamics and breakdown of MgO gate oxides '. Microelectronic Engineering, 86 :1715-1717.
	2009	Robert O’Connor, Greg Hughes, Patrick Casey and Simon Newcombe. (2009) 'Degradation and Breakdown Characteristics of thin MgO Dielectric Layers '. Journal of Applied Physics, .
	2009	R. D. Long, É. O’Connor, S. Monaghan, K. Cherkaoui, K. K. Thomas, F. Chalvet, I. M. Povey, M. E. Pemble, and P. K. Hurley.P. Casey and G. Hughes S. B. Newcomb.N. Goel, W. Tsai. (2009) 'Structural Analysis, Elemental Profiling, and Electrical Characterisation of HfO2 Thin Films Deposited on In0.53Ga0.47As Surfaces by Atomic Layer Deposition. '. Journal of Applied Physics, 106 .
	2009	Stephen McDonnell, Barry Brennan and Greg Hughes. (2009) 'Evidence of atomic disruption at the Si/SiOx interface following HfO2 deposition . '. APPLIED PHYSICS LETTERS (PRINT), 95 .
	2008	F. S. Aguirre-Tostado, M. Milojevic, C. L. Hinkle, E. M. Vogel, R. M. Wallace, S. McDonnell, and G. J. Hughes (2008) 'Indium stability on InGaAs during atomic H surface cleaning '. APPLIED PHYSICS LETTERS (PRINT), 92 .
	2008	Cherkaoui, K; Monaghan, S; Negara, MA; Modreanu, M; Hurley, PK; O' Connell, D; McDonnell, S; Hughes, G; Wright, S; Barklie, RC; Bailey, P; Noakes, TCQ (2008) 'Electrical, structural, and chemical properties of HfO(2) films formed by electron beam evaporation'. Journal of Applied Physics, 104 . [DOI]
	2008	Reid, I; Zhang, Y; DeMasi, A; Hughes, G; Smith, KE (2008) 'Electronic structure characterization of ultra low-k carbon doped oxide using soft X-ray emission spectroscopy'. Thin Solid Films, 516 :4851-4854. [DOI]
	2008	O' Connor, E; Long, RD; Cherkaoui, K; Thomas, KK; Chalvet, F; Povey, IM; Pemble, ME; Hurley, PK; Brennan, B; Hughes, G; Newcomb, SB (2008) 'In situ H(2)S passivation of In(0.53)Ga(0.47)As/InP metal-oxide-semiconductor capacitors with atomic-layer deposited HfO(2) gate dielectric'. Applied Physics Letters, 92 . [DOI]
	2008	Hinkle, C.L.; Sonnet, A.M.; Vogel, E.M.; McDonnell, S.; Hughes, G.J.; Milojevic, M.; Lee, B.; Aguirre-Tostado, F.S.; Choi, K.J.; Kim, H.C.; Kim, J.; Wallace, R.M. (2008) 'GaAs interfacial self-cleaning by atomic layer deposition'. Applied Physics Letters, 92 . [Link] [DOI]
	2008	C. L. Hinkle , A. M. Sonnet , E. M. Vogel , Stephen McDonnell , Greg Hughes , M. Milojevic , B. Lee , F. S. Aguirre-Tostado , K. J. Choi , H. C. Kim , J. Kim , R. M. Wallace (2008) 'GaAs interfacial self-cleaning by atomic layer deposition'. APPLIED PHYSICS LETTERS (PRINT), 92 :071901-1.
	2008	E. O’Connor, R. Long, K. Thomas, F. Chalvet, M. E. Pemble, and P. K. Hurley, B. Brennan, G. Hughes. S. B. Newcomb. (2008) 'In-situ H2S passivation of In0.53Ga0.47As/InP metal-oxide-semiconductor capacitors with atomic-layer deposited HfO2 gate dielectric. '. APPLIED PHYSICS LETTERS (PRINT), 92 .
	2007	Sergey A. Krasnikov, Greg Hughes and Attilio A. Cafolla (2007) 'Two types of the sulphur induced reconstructions of Au(110) surface'. Surface Science, 601 :3506-3511.
	2007	I. Reid, Y. Zhang, A. DeMasi, G. Hughes and K. E. Smith (2007) 'Electronic structure characterization of Ultra Low-k (ULK) Carbon Doped Oxide (CDO) using X-ray emission spectroscopy'. Thin Solid Films, Available on line 18th Sept .
	2007	C. L. Hinkle, A. M. Sonnet, and E. M. Vogel S. McDonnell and G. J.Hughes, M. Milojevic, B. Lee, F. S. Aguirre-Tostado, K. J. Choi, J. Kim, and R. M. Wallace (2007) 'Frequency dispersion reduction and bond conversion on n-type GaAs by in-situ surface oxide removal and passivation '. APPLIED PHYSICS LETTERS (PRINT), 91 .
	2007	Rahman, M.; Reid, I.; Duggan, P.; Dowling, D.P.; Hughes, G.; Hashmi, M.S.J. (2007) 'Structural and tribological properties of the plasma nitrided Ti-alloy biomaterials: Influence of the treatment temperature'. Surface and Coatings Technology, 201 . [Link] [DOI]
	2007	Reid, I; Hughes, G (2007) 'Investigation of varying C4F8/O-2 gas ratios on the plasma etching of carbon doped ultra-low-k dielectric layers'. Semiconductor Science and Technology, 22 :636-640. [DOI]
	2007	Hurley, PK; Cherkaoui, K; McDonnell, S; Hughes, G; Groenland, AW (2007) 'Characterisation and passivation of interface defects in (100)-Si/SiO2/HfO2/TiN gate stacks'. Microelectronics and Reliability, 47 :1195-1201. [DOI]
	2007	Krasnikov, SA; Hughes, G; Cafolla, AA (2007) 'Sulphur overlayers on the Au(110) surface: LEED and TPD study'. Surface Science, 601 :3506-3511. [DOI]
	2006	O' Connor, R; McDonnell, S; Hughes, G; Smith, KE (2006) 'Photoemission studies of pulsed-RF plasma nitrided ultra-thin SiON dielectric layers'. Surface Science, 600 :532-536. [DOI]
	2006	Reid, I; Krastev, V; Hughes, G (2006) 'Suppression of carbon depletion from carbon-doped low-k dielectric layers during fluorocarbon based plasma etching'. Microelectronic Engineering, 83 :2458-2461. [DOI]
	2006	McDonald, O; Cafolla, AA; Carty, D; Sheerin, G; Hughes, G (2006) 'Photoemission, NEXAFS and STM studies of pentacene thin films on Au(100)'. Surface Science, 600 :3217-3225. [DOI]
	2006	Reid, I; Hughes, G (2006) 'Influence of plasma parameters on the chemical composition of steady-state fluorocarbon films deposited on carbon-doped low-k dielectric layers during etching'. Semiconductor Science and Technology, 21 :1354-1357. [DOI]
	2006	McDonald, O; Cafolla, AA; Li, ZS; Hughes, G (2006) 'Synchrotron photoemission studies of pentacene films on Cu(110)'. Surface Science, 600 :1909-1916. [DOI]
	2006	Mahfujur Rahman, I. Reid, P. Duggan, D.P. Dowling, G. Hughes and M.S.J. Hashmi (2006) 'Structural and tribological properties of the plasma nitrided Ti-alloy biomaterials: Influence of the treatment temperature'. Surface and Coatings Technology, .
	2006	McDonald, O. and Cafolla, A. A. and Carty, D. and Sheerin, G. and Hughes, G. (2006) 'Photoemission, NEXAFS and STM studies of pentacene thin films on Au(100)'. 600 (16):3217-3225. [DOI]
	2006	McDonald, O. and Cafolla, A. A. and Li, Zheshen and Hughes, G. (2006) 'Synchrotron photoemission studies of pentacene films on Cu(110)'. 600 (9):1909-1916. [DOI]
	2006	O’Connor, R and McDonnell, S and Hughes, G and Smith, KE (2006) 'Photoemission studies of pulsed-RF plasma nitrided ultra-thin SiON dielectric layers'. 600 (3):532-536.
	2006	O’Connor, R and Hughes, G and Glans, P-A and Learmonth, T and Smith, KE (2006) 'X-ray photoemission and X-ray absorption studies of Hf-silicate dielectric layers'. 253 (5):2770-2775.
	2006	O' Connor, R; Hughes, G; Glans, PA; Learmonth, T; Smith, KE (2006) 'X-ray photoernission and X-ray absorption studies of Hf-silicate dielectric layers'. Applied Surface Science, 253 :2770-2775. [DOI]
	2005	Robert O’Connor, Greg Hughes, Robin Degraeve, Ben Kaczer (2005) 'Temperature-accelerated breakdown in ultra-thin SiON dielectrics'. Semiconductor Science and Technology, 19 :1254-1258.
	2005	Hughes, G and Carty, D and McDonald, O and Cafolla, AA (2005) 'Synchrotron radiation photoemission studies of the pentacene - Ag/Si(111) root 3 x root 3 interface'. 580 (1-3):167-172. [DOI]
	2005	O' Connor, R; Hughes, G; Degraeve, R; Kaczer, B (2005) 'Charge trapping in MOSFETs with HfSiON dielectrics during electrical stressing'. Microelectronic Engineering, 77 :302-309. [DOI]
	2005	Krastev, V; Reid, I; Galassi, C; Hughes, G; McGlynn, E (2005) 'Influence of C4F8/Ar/O-2 plasma etching on SiO2 surface chemistry'. Journal of Materials Science: Materials in Electronics, 16 :541-547. [DOI]
	2005	Hughes, G; Carty, D; McDonald, O; Cafolla, AA (2005) 'Synchrotron radiation photoemission studies of the pentacene - Ag/Si(111) root 3 x root 3 interface'. Surface Science, 580 :167-172. [DOI]
	2005	Hughes, G; Carty, D; Cafolla, AA (2005) 'Core level photoemission studies of the interaction of pentacene with the Si(111) (7 x 7) surface'. Surface Science, 582 :90-96. [DOI]
	2005	O' Connor, R; Hughes, G; Degraeve, R; Kaczer, B; Kauerauf, T (2005) 'Reliability of HfSiON gate dielectrics'. Semiconductor Science and Technology, 20 :68-71. [DOI]
	2005	O' Connor, R; McDonnell, S; Hughes, G; Degraeve, R; Kauerauf, T (2005) 'Low voltage stress-induced leakage current in 1.4-2.1 nm SiON and HfSiON gate dielectric layers'. Semiconductor Science and Technology, 20 :668-672. [DOI]
	2005	Hughes, G and Carty, D and Cafolla, AA (2005) 'Core level photoemission studies of the interaction of pentacene with the Si(111) (7 x 7) surface'. 582 (1-3):90-96. [DOI]
	2004	Robert O'Connor, Robin Degraeve, Ben Kaczer, Anabela Veloso, Greg Hughes and Guido Groeseneken. (2004) 'Weibull Slope and Voltage Acceleration of Ultra-thin (1.1- 1.45 nm EOT) Oxynitrides. '. Microelectronic Engineering, * :-.
	2004	O' Connor, R; Hughes, G; Degraeve, R; Kaczer, B (2004) 'Temperature-accelerated breakdown in ultra-thin SiON dielectrics'. Semiconductor Science and Technology, 19 :1254-1258. [DOI]
	2004	O’Connor,R. Hughes,G. Degraeve,R, Kaczer,B. (2004) 'Progressive breakdown in ultra-thin SiON dielectrics and its effect on transistor performance'. Microelectronic Engineering, 45 :869-874.
	2004	Guaino, P and Carty, D and Hughes, G and McDonald, O and Cafolla, AA (2004) 'Long-range order in a multilayer organic film templated by a molecular-induced surface reconstruction: Pentacene on Au(110)'. 85 (14):2777-2779. [DOI]
	2004	AlShamaileh,E. Pussi,K. McEvoy,T, Lindroos,M. Hughes, G.Cafolla,A.A. (2004) '65. Structural study of the Cu(100) – p(2x2)-Sb surface alloy using low energy electron diffraction'. Surface Science, 566-568 :52-57.
	2004	Guaino, P; Carty, D; Hughes, G; McDonald, O; Cafolla, AA (2004) 'Long-range order in a multilayer organic film templated by a molecular-induced surface reconstruction: Pentacene on Au(110)'. Applied Physics Letters, 85 :2777-2779. [DOI]
	2003	Guaino, P and Carty, D and Hughes, G and Moriarty, P and Cafolla, AA (2003) 'Scanning tunneling microscopy study of pentacene adsorption on Ag/Si(111)-(root 3 x root 3)R30 degrees'. 212 :537-541. [DOI]
	2003	Guaino, P and Cafolla, AA and Carty, D and Sheerin, G and Hughes, G (2003) 'An STM investigation of the interaction and ordering of pentacene molecules on the Ag/Si(111)-(root 3 x root 3)R30 degrees surface'. 540 (1):107-116. [DOI]
	2003	Guaino, P; Cafolla, AA; McDonald, O; Carty, D; Sheerin, G; Hughes, G (2003) 'Scanning tunnelling spectroscopy of low pentacene coverage on the Ag/Si(111)-(root 3 x root 3) surface'. Journal of Physics Condensed Matter, 15 :2693-2698.
	2003	McGuinness, C; Fu, DF; Downes, JE; Smith, KE; Hughes, G; Roche, J (2003) 'Electronic structure of thin film silicon oxynitrides measured using soft x-ray emission and absorption'. Journal of Applied Physics, 94 :3919-3922. [DOI]
	2003	Guaino, P; Cafolla, AA; Carty, D; Sheerin, G; Hughes, G (2003) 'An STM investigation of the interaction and ordering of pentacene molecules on the Ag/Si(111)-(root 3 x root 3)R30 degrees surface'. Surface Science, 540 :107-116. [DOI]
	2003	Ph. Guaino, D. Carty, G. Hughes, P. Moriarty and A.A.Cafolla (2003) 'Scanning Tunneling Microscopy Study of Pentacene Adsorption on the Ag/Si(111)-(v3 x v3)R30o. '. APPLIED PHYSICS LETTERS (PRINT), 212-213 :537-541.
	2002	Greg Hughes, Jason Roche, Darren Carty and Tony Cafolla Kevin E. Smith (2002) 'Core Level Photoemission and Scanning Tunneling Microscopy study of the interaction of pentacene with the Si(100) surface. '. Journal of Vacuum Science & Technology A-Vacuum Surface, 20(4) :1620-1625.
	2002	Hughes, G and Roche, J and Carty, D and Cafolla, T and Smith, KE (2002) 'Core level photoemission and scanning tunneling microscopy study of the interaction of pentacene with the Si(100) surface'. 20 (4):1620-1625. [DOI]
	2000	Roche, J; Ryan, P; Hughes, G (2000) 'Core-level photoemission studies of the sulphur-terminated Si(100) surface'. Surface Science, 465 :115-119.
	2000	G.J.Hughes, P.Ryan,P. Quinn and A.A.Cafolla (2000) 'The deposition of transition metal layers on sulphur terminated InP(100) surfaces studies by core level photoemission spectroscopy'. Vacuum, 57 :131-138.
	1999	G.J.Hughes, P Ryan, P.Quinn and A.A. Cafolla (1999) 'Core level photoemission studies of the deposition of thin manganese layers on sulphur terminated InP(100) surfaces. '. Surface Science, 431 :1-7.
	1998	Hearne S Hughes G (1998) 'Ambient scanning tunnelling spectroscopy of sulphur passivated InP(100)surfaces'. Applied Surface Science, 123 :176-180.
	1998	Deegan T Hughes G (1998) 'An X-ray photoelectron spectroscopy study of the HF etching of native oxides on Ge(111) and Ge(100) surfaces'. Applied Surface Science, 123 :66-70.
	1997	Moriarty, P; Ma, YR; Dunn, AW; Beton, PH; Henini, M; McGinley, C; McLoughlin, E; Cafolla, AA; Hughes, G; Downes, S; Teehan, D; Murphy, B (1997) 'Absence of long-range ordered reconstruction on the GaAs(311)A surface'. Physical Review B, 55 :15397-15400.
	1997	Rizza, R; Fitzmaurice, D; Hearne, S; Hughes, G; Spoto, G; Ciliberto, E; Kerp, H; Schropp, R (1997) 'Self-assembly of monolayers of semiconductor nanocrystallites'. Chemistry of Materials, 9 :2969-2982.
	1997	Moriarty, P and Ma, YR and Dunn, AW and Beton, PH and Henini, M and McGinley, C and McLoughlin, E and Cafolla, AA and Hughes, G and Downes, S and Teehan, D and Murphy, B (1997) 'Absence of long-range ordered reconstruction on the GaAs(311)A surface'. 55 (23):15397-15400. [DOI]
	1997	Cafolla, AA and McGinley, C and McLoughlin, E and Hughes, G and Moriarty, P and Dunn, AW and Ma, YR and Teehan, D and Murphy, B and Downes, S and Woolf, DA (1997) 'Adsorption of Sb on GaAs(111)B studied by photoemission and low energy electron diffraction'. 377 (1-3):130-134. [DOI]
	1997	Rizza R Fitzmaurice D Hearne S Hughes G Spoto G Ciliberto E Kerp H Schropp R (1997) 'Self-assembly of monolayers of semiconductor nanocrystallites'. Chemistry of Materials, 9 :2969-2982.
	1997	Cafolla AA McGinley C McLoughlin E Hughes G Moriarty P Dunn AW Ma YR Teehan D Murphy B Downes S Woolf DA (1997) 'Adsorption of Sb on GaAs(111)B studied by photoemission and low energy electron diffraction'. Surface Science, 377 :130-134.
	1995	MORIARTY, P; MURPHY, B; ROBERTS, L; CAFOLLA, AA; HUGHES, G; KOENDERS, L; BAILEY, P; WOOLF, DA (1995) 'CHEMICAL BONDING AND STRUCTURE OF THE SULFUR TREATED GAAS(111)B SURFACE'. Applied Physics Letters, 67 :383-385.
	1995	MORIARTY, P and MURPHY, B and ROBERTS, L and CAFOLLA, AA and HUGHES, G and KOENDERS, L and BAILEY, P and WOOLF, DA (1995) 'CHEMICAL BONDING AND STRUCTURE OF THE SULFUR TREATED GAAS(111)B SURFACE'. 67 (3):383-385. [DOI]
	1995	HUGHES, G; SPRINGER, C; RESCH, U; ESSER, N; RICHTER, W (1995) 'A REFLECTANCE ANISOTROPY SPECTROSCOPY STUDY OF MOLECULAR SULFUR ADSORPTION ON THE GAAS(100) SURFACE'. Journal of Applied Physics, 78 :1948-1952.
	1994	MURPHY, B; MORIARTY, P; ROBERTS, L; CAFOLLA, T; HUGHES, G; KOENDERS, L; BAILEY, P (1994) 'CHEMICAL AND STRUCTURAL STUDIES OF THE INTERACTIONS OF MOLECULAR SULFUR WITH THE GAAS(111)A AND GAAS(111)B SURFACES'. Surface Science, 317 :73-83.
	1994	MURPHY, B and MORIARTY, P and ROBERTS, L and CAFOLLA, T and HUGHES, G and KOENDERS, L and BAILEY, P (1994) 'CHEMICAL AND STRUCTURAL STUDIES OF THE INTERACTIONS OF MOLECULAR SULFUR WITH THE GAAS(111)A AND GAAS(111)B SURFACES'. 317 (1-2):73-83. [DOI]
	1994	MORIARTY, P; MURPHY, B; ROBERTS, L; CAFOLLA, AA; HUGHES, G; KOENDERS, L; BAILEY, P (1994) 'PHOTOELECTRON CORE-LEVEL SPECTROSCOPY AND SCANNING-TUNNELING-MICROSCOPY STUDY OF THE SULFUR-TREATED GAAS(100) SURFACE'. Physical Review B, 50 :14237-14245.
	1994	Moriarty, P.; Murphy, B.; Roberts, L.; Cafolla, A.A.; Hughes, G.; Koenders, L.; Bailey, P. (1994) 'Photoelectron core-level spectroscopy and scanning-tunneling-microscopy study of the sulfur-treated GaAs(100) surface'. Physical Review B, 50 . [Link] [DOI]
	1993	FENNEMA, BDJR; FORSTER, RJ; VOS, JG; HUGHES, G; DIAMOND, D (1993) 'OBTAINING AND PROCESSING DATA FROM LABORATORY INSTRUMENTS .2. PROCESSING THE DATA USING EXCEL'. TrAC - Trends in Analytical Chemistry, 12 :37-40.
	1993	FENNEMA, BDJR; FORSTER, RJ; VOS, JG; HUGHES, G; DIAMOND, D (1993) 'OBTAINING AND PROCESSING DATA FROM LABORATORY INSTRUMENTS .1. GETTING THE DATA INTO THE WINDOWS ENVIRONMENT'. TrAC - Trends in Analytical Chemistry, 12 :1-3.
	1993	KOENDERS L MORIARTY P HUGHES G JUSKO O (1993) 'VACANCY CREATION ON THE SI(111)-7X7 SURFACE DUE TO SULFUR DESORPTION STUDIED BY SCANNING-TUNNELING-MICROSCOPY'. Surface Science, 297 :L113-L118.
	1993	ETTEMA ARHF HAAS C MORIARTY P HUGHES G (1993) 'WAVE-FUNCTION IMAGING OF THE PBS(001) SURFACE WITH SCANNING- TUNNELING-MICROSCOPY'. Surface Science, 287 :1106-1111.
	1993	MORIARTY P KOENDERS L HUGHES G (1993) 'SULFUR-INDUCED C(4X4) RECONSTRUCTION OF THE SI(001) SURFACE STUDIED BY SCANNING-TUNNELING-MICROSCOPY'. Physical Review B-Condensed Matter, 47 :15950-15953.
	1993	ROBERTS, L; HUGHES, G; FENNEMA, B; CARBERY, M (1993) 'A SYNCHROTRON RADIATION PHOTOEMISSION-STUDY OF THE DEPOSITION OF TITANIUM ON AN OXIDIZED GAAS(100) SURFACE'. Semiconductor Science and Technology, 8 :647-651.
	1993	MORIARTY P MURPHY B HUGHES G (1993) 'SCANNING-TUNNELING-MICROSCOPY STUDY OF THE AMBIENT OXIDATION OF PASSIVATED GAAS(100) SURFACES'. Journal of Vacuum Science & Technology A-Vacuum Surface, 11 :1099-1105.
	1992	FIVES, K; MCGOVERN, IT; MCGRATH, R; CIMINO, R; HUGHES, G; MCKINLEY, A; THORNTON, G (1992) 'THE PHOTOELECTRON BAND-STRUCTURE OF MOLYBDENUM-DISULFIDE'. Journal of Physics Condensed Matter, 4 :5639-5646.
	1992	MORIARTY P HUGHES G (1992) 'AN INVESTIGATION OF THE EARLY STAGES OF NATIVE OXIDE-GROWTH ON CHEMICALLY ETCHED AND SULFUR-TREATED GAAS(100) AND INP(100) SURFACES BY SCANNING TUNNELING MICROSCOPY'. Ultramicroscopy, 42 :956-961.
	1992	ROBERTS, L; HUGHES, G; FENNEMA, B; CARBERY, M (1992) 'VACUUM ULTRAVIOLET PHOTOELECTRON-SPECTROSCOPY STUDY OF THE INTERACTION OF MOLECULAR SULFUR WITH THE GAAS(100) SURFACE'. Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, 10 :1862-1866.
	1992	MORIARTY, P; HUGHES, G (1992) 'ATOMIC RESOLVED MATERIAL DISPLACEMENT ON GRAPHITE SURFACES BY SCANNING TUNNELING MICROSCOPY'. Applied Physics Letters, 60 :2338-2340.
	1991	ROBERTS, L; HUGHES, G (1991) 'AN INVESTIGATION OF METAL GAAS(100) INTERFACES BY DEEP LEVEL TRANSIENT SPECTROSCOPY'. Applied Surface Science, 50 :424-427.
	1987	F. Schaeffler, R. Ludeke, A. Taleb-Ibrahimi, G.J. Hughes, D. Rieger. (1987) 'Sb/GaAs (110) interface: A re-evaluation. '. Physical Review B-Condensed Matter, B36 :1328-1332.
	1987	F. Schaeffler, G.J. Hughes, W. Drube, R. Ludeke, F.J. Himpsel. (1987) 'Comparative study of Yittrium and other Transition Metals on GaAs (110). '. Physical Review B-Condensed Matter, 35 :6328-6336.
	1987	F. Schaeffler, W. Drube, G.J. Hughes, R. Ludeke, D. Rieger, F.J. Himpsel. (1987) 'Metal-induced impurity states at the InP-transition metal interfaces. '. Journal of Vacuum Science & Technology A-Vacuum Surface, A5(4) :1528-1533.
	1986	G.J. Hughes, R. Ludeke. (1986) 'Oxygen-1s studies of the oxidation of InP (110) and GaAs (110) surfaces. '. Journal of Vacuum Science & Technology A-Vacuum Surface, B(4)4 :1109-1114.
	1986	G.J. Hughes, R. Ludeke, F. Schaeffler, D. Rieger. (1986) 'Transition metal overlayers on GaAs (110): A case for extrinsic surface states. '. Journal of Vacuum Science & Technology A-Vacuum Surface, B(4)4 :924-930.
	1986	F.J. Himpsel, F.U. Hillebrecht, G.J. Hughes, J.L. Jordan, U. Karlsson, F.R. McFeeley, J.F. Morar, D. Rieger. (1986) 'Structure and bonding of the CaF /Si(111) interface. '. Journal of Applied Physics, 48 :1327-1332.
	1986	G. Hollinger, J.F.Morar, F.J.Himpsel, G.J.Hughes and J.L.Jordan, (1986) 'Si(111) surface oxidation- O 1s core-level study using synchrotron radiation'. Surface Science, 168 :609-616.
	1986	J.F. Morar, F.J. Himpsel, G. Hollinger, J.L. Jordan, G.J. Hughes, F.R. McFeeley. (1986) 'Carbon - 1s excitation studies of diamond (111) I: Surface core levels'. Physical Review B-Condensed Matter, B33 :1340-1345.
	1986	J.F. Morar, F.J. Himpsel, G. Hollinger, J.L. Jordan, G.J. Hughes, F.R. McFeeley. (1986) 'Carbon - 1s excitation studies of diamond (111)II: Unoccupied surface states'. Physical Review B-Condensed Matter, B33 :1346-1349.
	1986	J.F. Morar, F.J. Himpsel, G. Hollinger, J.L. Jordan, G.J. Hughes, F.R. McFeeley. (1986) 'Carbon - Is excitation studies of diamond (111)I: Surface core levels. '. Physical Review B-Condensed Matter, B33 :1340-1345.
	1986	G. Hollinger, G.J. Hughes, F.J. Himpsel, F. Houzay, J.L. Jordan, J.F. Morar. (1986) 'Early stages in the formation of the InP (110) - oxide interface'. Surface Science, 168 :617-625.
	1985	G.J. Hughes, R. Ludeke, J.F. Morar, J.L. Jordan. (1985) 'Oxygen-Is core level studies of the oxidation of GaAs (110)'. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, :1079-1080.
	1985	J.F. Morar, F.J. Himpsel, G. Hollinger, G.J. Hughes, J.L. Jordan. (1985) 'Observation of a core excitation in diamond (111)'. Physical Review Letters, 54 :1960-1963.
	1985	J.F. Morar, F.J. Himpsel, G. Hollinger, J.L. Jordan, G.J. Hughes, R.F. McFeely. (1985) 'High resolution photoemission investigation; the oxidation of tungsten'. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 3 :1476-1480.
	1985	T.P. Humphreys, G.J. Hughes, A. McKinley, E.C. Cunningham, R.H. Williams. (1985) 'The adsorption of tin layers on cleaned InP (110) surfaces'. Surface Science, 152/153 :1222-1227.
	1984	R.H. Williams, A. McKinley, G.H. Hughes, C. Maani, T.P. Humphreys. (1984) 'Metal contacts on semiconductors: The adsorption of Sb, Sn and Ga on InP110) cleaned surfaces'. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2 :561-568.
	1983	C. Maani, A. McKinley, G.J. Hughes, R.H. Williams (1983) 'The adsorption of Ga and Sb on cleaved InP surfaces'. Vacuum, Vol. 33 :597-600.
	1983	G.J. Hughes, A. McKinley, R.H. Williams. (1983) 'Nickel and copper on cleaned InP (110); Structure, metallurgy and electronic properties'. JOURNAL OF PHYSICS C: SOLID STATE PHYSICS, 16 :2391-2406.
	1983	I.T. McGovern, J.F. McGilp, G.J. Hughes, A. McKinley, R.H. Williams, D. Norman. (1983) 'Soft x-ray photoemission spectroscopy of chemical reactivity at metal- GaSe Interfaces'. Vacuum, 33 :607-612.
	1982	A. McKinley, G.J. Hughes, R.H. Williams. (1982) 'Aluminium overlayers on InP (110)- microscopic aspects of interface formation'. JOURNAL OF PHYSICS C: SOLID STATE PHYSICS, 15 :7049-7063.
	1982	R.H.Williams, A.McKinley, G.J.Hughes, V. Montgomery and I.T.McGovern (1982) 'Metal-GaSe and metal-InP interfaces – Schottky Barrier formation and interface reactions'. Journal of Vacuum Science & Technology A-Vacuum Surface, 21 :594-598.
	1982	G.J. Hughes, A. McKinley, R.H. Williams, I.T. McGovern. (1982) 'Metal-gallium selenide interfaces - observation of the true Schottky limit'. JOURNAL OF PHYSICS C: SOLID STATE PHYSICS, 15 :159-164.
	1981	G. Hughes, T.P. Humphreys, V. Montgomery, R.H. Williams. (1981) 'The influence of adlayers on Schottky barrier formation: The adsorption of Hydrogen Sulphide and Water on InP (110) surfaces'. Vacuum, 33 :539-541.
	1980	A. McKinley, A.W. Parks, G.J. Hughes, J. Fryar, R.H. Williams. (1980) 'Atomically clean semiconductor surfaces prepared by laser irradiation'. JOURNAL OF PHYSICS D-APPLIED PHYSICS (PRINT), 13 :193-197.

Research Interests

Investigation of chemical interactions on semiconductor surfaces, including Schottky Barrier formation, surface exchange reactions, surface chemical passivation and heteroepitaxial growth. Investigations of the interactions of group VI elements with semiconductor surfaces with the specific objective of improving the electrical characteristics of multiplayer structures fabricated on these surfaces. Electrical and chemical characterisation of thin film dielectric layers used in advanced transistor fabrication technology. Developing an understanding of the chemical and structural interactions of organic molecules with semiconductor surfaces. These studies involve investigation of direct bonding mechanisms between organic molecules and surface atoms with a view to exploiting these hybrid organic-inorganic structures for novel electronic device and sensor applications.