By Professor N.J. Ekins-Daukes

Conference Papers

Adams JGJ; Elder W; Hill G; Roberts JS; Barnham KWJ; Ekins-Daukes NJ, 2010, 'Higher limiting efficiencies for nanostructured solar cells', in Proceedings of SPIE - The International Society for Optical Engineering, http://dx.doi.org/10.1117/12.844114

Adams JGJ; Roberts JS; Hill G; Ekins-Daukes NJ; Barnham KWJ, 2009, 'Directional emission in strain-balanced quantum well solar cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 000071 - 000075, http://dx.doi.org/10.1109/PVSC.2009.5411734

Adams JGJ; Ginige R; Connolly JP; Ballard IM; Browne BC; Hill G; Roberts JS; Ekins-Daukes NJ; Barnham KWJ, 2009, 'Effect of back-surface reflectors on the performance of strain-balanced quantum well solar cells', in Materials Research Society Symposium Proceedings, pp. 24 - 29

Ballard IM; Barnham KWJ; Ekins-Daukes NJ, 2009, 'Solar cell efficiency enhancement and revised shockley-queisser limit for low dimensional absorbers', in Materials Research Society Symposium Proceedings, pp. 41 - 46

Adams JGJ; Roberts JS; Hill G; Ekins-Daukes NJ; Barnham KWJ, 2009, 'DIRECTIONAL EMISSION IN STRAIN-BALANCED QUANTUM WELL SOLAR CELLS', in 2009 34TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, VOLS 1-3, IEEE, PA, Philadelphia, pp. 2120 - +, presented at 34th IEEE Photovoltaic Specialists Conference, PA, Philadelphia, 07 June 2009 - 12 June 2009, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000280345900452&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Ekins-Daukesa NJ; Adamsa J; Ballarda IM; Barnhama KWJ; Brownea B; Connollya JP; Tibbits T; Hill G; Roberts JS, 2009, 'Physics of quantum well solar cells', in Proceedings of SPIE - The International Society for Optical Engineering, http://dx.doi.org/10.1117/12.816946

Auckett JE; Chen YY; Khoury T; Clady RGCR; Ekins-Daukes NJ; Crossley MJ; Schmidt TW, 2009, 'Efficient up-conversion by triplet-triplet annihilation', in Journal of Physics: Conference Series, http://dx.doi.org/10.1088/1742-6596/185/1/012002

Ekins-Daukes NJ, 2008, 'Evaluation of InGaP/In0.01GaAs/Ge concentrator system annual energy yield and comparison to estimates based on reference spectra.', in Conference Record of the IEEE Photovoltaic Specialists Conference, http://dx.doi.org/10.1109/PVSC.2008.4922914

Yamaguchi M; Sasaki T; Lee HS; Morioka C; Ekins-Daukes NJ; Imaizumi M; Takamoto T; Ohshima T, 2008, 'Radiation-resistance analysis of GaAs and InGaP sub cells for InGaP/GaAs/Ge 3-junction space solar cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, http://dx.doi.org/10.1109/PVSC.2008.4922716

Yamaguchi M; Sasaki T; Lee H-S; Morioka C; Ekins-Daukes NJ; Imaizumi M; Takamoto T; Ohshima T, 2008, 'RADIATION-RESISTANCE ANALYSIS OF GaAs AND InGaP SUB CELLS FOR InGaP/GaAs/Ge 3-JUNCTION SPACE SOLAR CELLS', in PVSC: 2008 33RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, VOLS 1-4, IEEE, CA, San Diego, pp. 1477 - +, presented at 33rd IEEE Photovoltaic Specialists Conference, CA, San Diego, 11 May 2008 - 16 May 2008, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000273995000326&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Conibeer GJ; Ekins-Daukes NJ; Guillemoles J; Konig D; Cho EC; Jiang C; Shrestha SK; Green MA, 2007, 'Progress on Hot Carrier Solar Cells', in Solar Energy Materials and Solar Cells, Elsevier Science BV, Amsterdam, presented at 17. International (Asian-Pacific) Photovoltaic Science and Engineering Conference, Fukuoka, Japan, 03 December 2007 - 07 December 2007

Lee HS; Yamaguchi M; Ekins-Daukes NJ; Khan A; Takamoto T; Imaizumi M; Ohshima T; Itoh H, 2006, 'Effects of a low-energy proton irradiation on n⁺/p-AlInGaP solar cells', in Physica B: Condensed Matter, pp. 564 - 567, http://dx.doi.org/10.1016/j.physb.2005.12.142

Sasaki T; Arafune K; Lee HS; Ekins-Daukes NJ; Tanaka S; Ohshita Y; Yamaguchi M, 2006, 'Effects of thermal cycle annealing on reduction of defect density in lattice-mismatched InGaAs solar cells', in Physica B: Condensed Matter, pp. 626 - 629, http://dx.doi.org/10.1016/j.physb.2005.12.158

Yamaguchi M; Ekins-Daukes NJ; Lee HS; Sumita T; Imaizumi M; Takamoto T; Agui T; Kaneiwa M; Kamimura K; Ohshima T; Itoh H, 2006, 'Analysis for radiation-resistance of InGaP and GaAs sub-cells for InGaP/GaAs/Ge 3-junction solar cells', in Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4, pp. 1789 - 1792, http://dx.doi.org/10.1109/WCPEC.2006.279838

Khan A; Yamaguchi M; Lee HS; Ekins-Daukes NJ; Takamoto T; Imaizumi M; Taylor S, 2006, 'DLTS: A promising technique for the identification of the recombination and compensator centers in solar cell materials', in Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4, pp. 1763 - 1768, http://dx.doi.org/10.1109/WCPEC.2006.279832

Sasaki T; Arafune K; Lee HS; Ekins-Daukes NJ; Tanaka S; Metzger W; Romero MJ; Jones K; Al-Jassim M; Ohshita Y; Yamaguchi M, 2006, 'Electrical properties and structural defects in lattice mismatched InGaAs solar cells', in Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4, pp. 795 - 798, http://dx.doi.org/10.1109/WCPEC.2006.279576

Lee HSK; Yamaguchi M; Ekins-Daukes NJ; Khan A; Takamoto T; Imaizumi M; Ohshima T; Ltoh H, 2006, 'Minority-carrier injection-enhanced recovery of radiation-induced defects in n⁺p AllnGaP solar cells', in Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4, pp. 1826 - 1829, http://dx.doi.org/10.1109/WCPEC.2006.279848

Ekins-Daukes NJ; Guenette M, 2006, 'Photovoltaic device operation at low temperature', in Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4, pp. 146 - 149, http://dx.doi.org/10.1109/WCPEC.2006.279385

Araki K; Emery K; Siefer G; Bett AW; Sakakibara T; Kemmoku Y; Ekins-Daukes NJ; Lee HS; Yamaguchi M, 2005, 'Comparison of efficiency measurements for a HCPV module with 3J cells in 3 sites', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 846 - 849

Khan A; Marupaduga S; Alam M; Ekins-Daukes NJ; Lee HS; Sasaki T; Yamaguchi M, 2005, 'Comparison of thermal annealing behavior of radiation induced defects in lattice mismatched InGaP and AIInGaP solar cells structures', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 663 - 666

Lee HS; Ekins-Daukes NJ; Sasaki T; Yamaguchi M; Khan A; Takamoto T; Agui T; Kamimura K; Kaneiwa M; Imaizumi M; Ohshima T; Itoh H, 2005, 'Defect observation of AlInGaP irradiated with 30keV protons for multi-junction space solar cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 556 - 558

Araki K; Uozumi H; Kondo M; Takamoto T; Agui T; Kaneiwa M; Egami T; Hiramatsu M; Miyazaki Y; Kemmoku Y; Akisawa A; Lee HS; Ekins-Daukes NJ; Yamaguchi M, 2005, 'Development of a new 550X concentrator module with 3J cells - Peformance and reliability', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 631 - 634

Lee HS; Ekins-Daukes NJ; Araki K; Kemmoku Y; Yamaguchi M, 2005, 'Field test and analysis: The behavior of 3-J concentrator cells under the control of cell temperature', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 754 - 757

Ekins-Daukes NJ; Raffaelle RP; Barnham KWJ; Ballard IM; Freundlich A; Yamaguchi M, 2005, 'Minimum performance criteria for quantum well based junctions in multi-junction solar cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 86 - 89

Ekins-Daukes NJ; Arafune K; Lee HS; Sasaki T; Yamaguchi M; Khan A; Takamoto T; Agui T; Kamimura K; Kaneiwa M; Imaizumi M; Ohshima T; Itoh H, 2005, 'Native and radiation induced defects in lattice mismatched InGaAs and InGaP', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 683 - 686

Ekins-Daukes NJ; Honsberg CB; Yamaguchi M, 2005, 'Signature of intermediate band materials from luminescence measurements', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 49 - 54

Ekins-Daukes NJ; Betts TR; Kemmoku Y; Araki K; Lee HS; Gottschalg R; Boreland MB; Infield DG; Yamaguchi M, 2005, 'Syracuse - A multi-junction concentrator system computer model', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 651 - 654

Johnson DC; Ballard I; Barnham KWJ; Bishnell DB; Connolly JP; Lynch MC; Tibbits TND; Ekins-Daukes NJ; Mazzer M; Airey R; Hill G; Roberts JS, 2005, 'Advances in Bragg stack quantum well solar cells', in Solar Energy Materials and Solar Cells, pp. 169 - 179, http://dx.doi.org/10.1016/j.solmat.2004.09.014

Lynch MC; Ballard M; Bushnell DB; Connolly JP; Johnson DC; Tibbits TND; Barnham KWJ; Ekins-Daukes NJ; Roberts S; Hill G; Airey R; Mazzer M, 2005, 'Spectral response and I-V characteristics of large well number multi quantum well solar cells', in Journal of Materials Science, pp. 1445 - 1449, http://dx.doi.org/10.1007/s10853-005-0580-4

Yamaguchi M; Takamoto T; Khan A; Imaizumi M; Matsuda S; Ekins-Daukes NJ, 2005, 'Super-high-efficiency multi-junction solar cells', in Progress in Photovoltaics: Research and Applications, pp. 125 - 132, http://dx.doi.org/10.1002/pip.606

Lee HS; Nishimura K; Yagi Y; Tachibana M; Ekins-Daukes NJ; Ohshita Y; Kojima N; Yamaguchi M, 2005, 'Chemical beam epitaxy of InGaAsN films for multi-junction tandem solar cells', in Journal of Crystal Growth, http://dx.doi.org/10.1016/j.jcrysgro.2004.11.200

Barkay Z; Grunbaum E; Shapira Y; Wilshaw P; Barnham K; Bushnell DB; Ekins-Daukes NJ; Mazzer M, 2004, 'High-resolution scanning electron microscopy of dopants in p-i-n junctions with quantum wells', in Institute of Physics Conference Series, pp. 143 - 146

Bushnell DB; Barnham KWJ; Connolly JP; Mazzer M; Ekins-Daukes NJ; Roberts JS; Hill G; Airey R; Nasi L, 2003, 'Effect of barrier composition and well number on the dark current of quantum well solar cells', in Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion, pp. 2706 - 2709

Ekins-Daukes NJ; Calder CDJ; Ballard I; Barnham KWJ; Nelson J; Roberts JS; Hill G, 2003, 'Quantum well and bulk quasi-fermi level behaviour under illuminated conditions', in Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion, pp. 2702 - 2705

Barnham KWJ; Abbott P; Ballard I; Bushnell DB; Connolly JP; Ekins-Daukes NJ; Mazzer M; Nelson J; Rohr C; Tibbits TND; Airey R; Hill G; Roberts JS, 2003, 'Recent results on quantum well solar cells', in Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion, pp. 606 - 611

Tibbits TND; Ballard IM; Barnham KWJ; Bushnell DB; Ekins-Daukes NJ; Airey R; Hill G; Roberts JS, 2003, 'The potential for strain-balanced quantum well solar cells in terrestrial concentrator applications', in Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion, pp. 2718 - 2721

Chatten AJ; Barnham KWJ; Buxton BF; Ekins-Daukes NJ; Malik MA, 2003, 'The quantum dot concentrator: Theory and results', in Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion, pp. 2657 - 2660

Mazzer M; Bamham KWJ; Ekins-Daukes N; Bushnell DB; Connolly J; Torsello G; Diso D; Tundo S; Lomascolo M; Licciulli A, 2003, 'The use of III-V quantum heterostructures in PV: Thermodynamic issues', in Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion, pp. 2661 - 2665

Ekins-Daukes NJ; Ballard I; Calder CD; Barnham K; Trupke T; Brown A; Roberts JS; Hill G, 2003, 'Photovoltaic Efficiency Enhancement Through Thermal Up-Conversion', in Kurokawa K (ed.), WCPEC-3, Osaka, Japan, presented at WCPEC-3, Osaka, Japan, -

Bushnell DB; Barnham KWJ; Connolly JP; Ekins-Daukes NJ; Airey R; Hill G; Roberts JS, 2002, 'Light-trapping structures for multi-quantum well solar cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1035 - 1038

Barnham KWJ; Ballard I; Connolly JP; Ekins-Daukes NJ; Kluftinger BG; Nelson J; Rohr C, 2002, 'Quantum well solar cells', in Physica E: Low-Dimensional Systems and Nanostructures, pp. 27 - 36, http://dx.doi.org/10.1016/S1386-9477(02)00356-9

Chatten AJ; Barnham KWJ; Blieske U; Ekins-Daukes NJ; Malik MA; Marques JL; Williams ML, 2000, 'Characterising quantum dot concentrators', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 865 - 868, http://dx.doi.org/10.1109/PVSC.2000.916020

Ekins-Daukes NJ; Zhang J; Bushneil DB; Barnham KWJ; Mazzer M; Roberts JS, 2000, 'Strain-balanced materials for high-efficiency solar cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1273 - 1276, http://dx.doi.org/10.1109/PVSC.2000.916122

Nelson J; Ballard I; Barnes J; Ekins-Daukes N; Barnham KWJ; Kluftinger BG; Tsui ESM; Foxon CT; Cheng TS; Roberts JS, 1997, 'Reduced radiative currents from GaAs/InGaAs and AlGaAs/GaAs p-i-n quantum well devices', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 919 - 922

Nelson J; Barnes J; Ekins-Daukes N; Barnham KWJ; Kluftinger B; Tsui ESM; Foxon CT; Cheng TS; Roberts JS, 1997, 'Reduced radiative currents from GaAs/InGaAs and AlGaAs/GaAs p-i-n quantum well devices', in Proceedings of the IEEE 24th International Symposium on Compound Semiconductors, ISCS 1997, pp. 413 - 416, http://dx.doi.org/10.1109/ISCS.1998.711674

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