Select Publications
Journal articles
2016, 'Energy conversion approaches and materials for high-efficiency photovoltaics', Nature Materials, 16, pp. 23 - 34, http://dx.doi.org/10.1038/nmat4676
,2016, 'Investigation of carrier dynamics in InAs/GaAsSb quantum dots with different silicon delta-doping levels', Semiconductor Science and Technology, 31, http://dx.doi.org/10.1088/0268-1242/31/12/125010
,2016, 'Optimum band gap combinations to make best use of new photovoltaic materials', Solar Energy, 135, pp. 750 - 757, http://dx.doi.org/10.1016/j.solener.2016.06.042
,2016, 'Extended hot carrier lifetimes observed in bulk In
2016, 'Hot carrier cooling in In
2015, 'Raman scattering study on Sb spray InAs/GaAs quantum dot nanostructure systems', Nanoscale Research Letters, 10, http://dx.doi.org/10.1186/s11671-015-0908-1
,2015, 'Reversible electron-hole separation in a hot carrier solar cell', New Journal of Physics, 17, http://dx.doi.org/10.1088/1367-2630/17/9/095004
,2015, 'Hot carrier extraction using energy selective contacts and its impact on the limiting efficiency of a hot carrier solar cell', Applied Physics Letters, 107, http://dx.doi.org/10.1063/1.4928750
,2015, 'Point-contacting by localised dielectric breakdown: Characterisation of a metallisation technique for the rear surface of a solar cell', Journal of Applied Physics, 118, http://dx.doi.org/10.1063/1.4927282
,2015, 'Point-contacting by localized dielectric breakdown with breakdown fields described by the weibull distribution', IEEE Transactions on Electron Devices, 62, pp. 1826 - 1830, http://dx.doi.org/10.1109/TED.2015.2423292
,2015, 'Supercharging Silicon Solar Cell Performance by Means of Multijunction Concept', IEEE Journal of Photovoltaics, 5, pp. 968 - 976, http://dx.doi.org/10.1109/JPHOTOV.2015.2395140
,2015, 'Designing bottom silicon solar cells for multijunction devices', IEEE Journal of Photovoltaics, 5, pp. 683 - 690, http://dx.doi.org/10.1109/JPHOTOV.2014.2381875
,2014, 'Suppression of dislocations by Sb spray in the vicinity of InAs/GaAs quantum dots', Nanoscale Research Letters, 9, pp. 1 - 5, http://dx.doi.org/10.1186/1556-276X-9-278
,2013, 'Impact of stress relaxation in GaAsSb cladding layers on quantum dot creation in InAs/GaAsSb structures grown on GaAs (001)', Journal of Applied Physics, 114, http://dx.doi.org/10.1063/1.4819962
,2013, 'Localized ohmic contact through a passivation dielectric for solar cell rear surface design', Applied Physics Letters, 102, pp. 4 pp., http://dx.doi.org/10.1063/1.4809820
,2013, 'Photoluminescence of antimony sprayed indium arsenide quantum dots for novel photovoltaic devices', Journal of Applied Physics, 113, pp. 093102-1 - 093102-7, http://dx.doi.org/10.1063/1.4794018
,2012, 'Fabrication of a self-aligned cross-wire quantum-dot chain light emitting diode by molecular beam epitaxial regrowth', Nanotechnology, 23
,2012, 'Observation of band alignment transition in InAs/GaAsSb quantum dots by photoluminescence', Journal of Applied Physics, 111
,2011, 'Controllability of the subband occupation of InAs quantum dots on a delta-doped GaAsSb barrier', Journal of Applied Physics, 109, pp. 014312
,2011, 'Use of Sb spray for improved performance of InAs/GaAs quantum dots for novel photovoltaic structures', Solar Energy Materials and Solar Cells
,2010, 'Identification of candidate material systems for quantum dot solar cells using a k.p method to include strain', Progress in Photovoltaics: Research and Applications, 18, pp. 233 - 239
,2010, 'Influence of Sb/As soak times on the structural and optical properties of GaAsSb/GaAs interfaces', Thin Solid Films, 519, pp. 64 - 68, http://dx.doi.org/10.1016/j.tsf.2010.07.060
,2010, 'Use of a GaAsSb buffer layer for the formation of small, uniform, and dense InAs quantum dots', Applied Physics Letters, 96, pp. 183101
,2010, 'Variability of heterostructure type with thickness of barriers and temperature in the InhAs/GaAsSb quantum dot system', Solar Energy Materials and Solar Cells, 94, pp. 1025 - 1030
,2009, 'The growth of GaAs and InAs dots on etched mesas: The effect of substrate temperature on mesa profile and surface morphology on dot distribution', Journal of Crystal Growth, 311, pp. 3911 - 3917, http://dx.doi.org/10.1016/j.jcrysgro.2009.04.031
,2008, 'Formation and ordering of epitaxial quantum dots', Comptes Rendus Physique, 9, pp. 788 - 803, http://dx.doi.org/10.1016/j.crhy.2008.10.014
,2008, 'Growth and characterization of Ga As1-x Sbx barrier layers for advanced concept solar cells', Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, 26, pp. 1149 - 1152, http://dx.doi.org/10.1116/1.2835062
,2008, 'Limiting efficiency of an intermediate band solar cell under a terrestrial spectrum', Applied Physics Letters, 92, http://dx.doi.org/10.1063/1.2907493
,2008, 'Analysis of tandem solar cell efficiencies under AM1.5G spectrum using a rapid flux calculation method', Progress in Photovoltaics: Research and Applications, 16, pp. 225 - 233, http://dx.doi.org/10.1002/pip.799
,2008, 'Temporal isolation of surface-acoustic-wave-driven luminescence from a lateral p-n junction using pulsed techniques', Physica E: Low-Dimensional Systems and Nanostructures, 40, pp. 1775 - 1779, http://dx.doi.org/10.1016/j.physe.2007.09.140
,2007, 'Temporal characteristics of surface-acoustic-wave-driven luminescence from a lateral p-n junction', Applied Physics Letters, 91, http://dx.doi.org/10.1063/1.2753759
,2006, 'Surface-acoustic-wave-driven luminescence from a lateral p-n junction', Applied Physics Letters, 89, http://dx.doi.org/10.1063/1.2405419
,2006, 'Controlling spontaneous emission from quantum dots using photonic crystal microcavities', Physica Status Solidi (C) Current Topics in Solid State Physics, 3, pp. 3676 - 3679, http://dx.doi.org/10.1002/pssc.200671514
,2006, 'Molecular beam epitaxial growth of site-controlled InAs quantum dots on pre-patterned GaAs substrates', Microelectronics Journal, 37, pp. 1436 - 1439, http://dx.doi.org/10.1016/j.mejo.2006.05.003
,2006, 'Site control of InAs quantum dot nucleation by ex situ electron-beam lithographic patterning of GaAs substrates', Physica E: Low-Dimensional Systems and Nanostructures, 32, pp. 21 - 24, http://dx.doi.org/10.1016/j.physe.2005.12.007
,2006, 'Size evolution of site-controlled InAs quantum dots grown by molecular beam epitaxy on prepatterned GaAs substrates', Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, 24, pp. 1523 - 1526, http://dx.doi.org/10.1116/1.2190674
,2006, 'Site-control of InAs quantum dots using Ex-situ electron-beam lithographic patterning of GaAs substrates', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 45, pp. 2519 - 2521, http://dx.doi.org/10.1143/JJAP.45.2519
,2005, 'Distribution of self-assembled InAs dots on patterned GaAs (1 0 0) substrates', Journal of Crystal Growth, 278, pp. 113 - 118, http://dx.doi.org/10.1016/j.jcrysgro.2004.12.178
,2002, 'Design Trade-Offs and Rules for Multiple Quasi-Fermi Level Solar Cells', Physica E - Low - Dimensional Systems and Nanostructures, 14, pp. 136 - 141
,2001, 'Technology Status Review: Bioremediation of Dinitrotoluene (DNT)', , http://dx.doi.org/10.21236/ada480579
,1999, 'Detailed balance limits with quasi-Fermi level variations', IEEE Transactions on Electron Devices, pp. 1932 - 1939
,Conference Papers
2024, 'Engineering phononic cavities: ultrafast phonon and carrier dynamics', in Betz M; Elezzabi AY (ed.), Ultrafast Phenomena and Nanophotonics XXVIII, SPIE, presented at Ultrafast Phenomena and Nanophotonics XXVIII, 27 January 2024 - 01 February 2024, http://dx.doi.org/10.1117/12.3001946
,2023, 'Advances in GaAsP Top Cells for Use in GaAsP/Si Tandems', in 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), IEEE, presented at 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), 11 June 2023 - 16 June 2023, http://dx.doi.org/10.1109/pvsc48320.2023.10359558
,2023, 'Controlling Photoexcited Carrier Relaxation Through Phonon Management in GaAs/AlAs Superlattices', in 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), IEEE, presented at 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), 11 June 2023 - 16 June 2023, http://dx.doi.org/10.1109/pvsc48320.2023.10359937
,2023, 'Ultrafast Dynamics of Photoexcited Carriers and Phonons in Tailored 1D Acoustic Phonon Potentials', in 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), IEEE, presented at 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), 11 June 2023 - 16 June 2023, http://dx.doi.org/10.1109/pvsc48320.2023.10359540
,2021, 'Low-temperature aluminium doped a-Si as hole selective contacts on p-type silicon solar cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 778 - 780, http://dx.doi.org/10.1109/PVSC43889.2021.9518591
,2021, 'Recent Advances in GaAsP/Si Top Cell Enabling 27% Tandem Efficiency', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1644 - 1646, http://dx.doi.org/10.1109/PVSC43889.2021.9518768
,2021, 'The Application of a-Si:H/AlO
2020, 'Assessment of the potential application of copper(I) sulfide as carrier selective contact on silicon bottom cell for III/V-Si tandem solar cells', Virtual, pp. 0380 - 0383, presented at 47th IEEE Photovoltaics Specialists Conference, Virtual, 15 June 2020, http://dx.doi.org/10.1109/PVSC45281.2020.9300627
,2020, 'Fundamental Aspects of Hot Carrier Solar Cell Operation', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 2227 - 2232, http://dx.doi.org/10.1109/PVSC45281.2020.9300536
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