Imperial College London
Alternate

Dr N.J. (Ned) Ekins-Daukes

Faculty of Natural Sciences, Department of Physics

Academic Visitor
 
 
 
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Contact

 

+44 (0)20 7594 6675n.ekins-daukes Website

 
 
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Location

 

H1002Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

293 results found

Yamaguchi M, Takamoto T, Khan A, Imaizumi M, Matsuda S, Ekins-Daukes NJet al., 2005, Super-high-efficiency multi-junction solar cells, 18th Space Photovoltaic Research and Technology (SPRAT 18 ), Publisher: WILEY, Pages: 125-132, ISSN: 1062-7995

Conference paper

Lee H-S, Nishimura K, Yagi Y, Tachibana M, Ekins-Daukes NJ, Ohshita Y, Kojima N, Yamaguchi Met al., 2005, Chemical beam epitaxy of InGaAsN films for multi-junction tandem solar cells, JOURNAL OF CRYSTAL GROWTH, Vol: 275, Pages: E1127-E1130, ISSN: 0022-0248

Journal article

Araki K, Emery K, Siefer G, Bett AW, Sakakibara T, Kemmoku Y, Ekins-Daukes NJ, Lee HS, Yamaguchi Met al., 2005, Comparison of efficiency measurements for a HCPV module with 3J cells in 3 sites, 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 846-849, ISSN: 0160-8371

Conference paper

Lee HS, Ekins-Daukes NJ, Araki K, Kemmoku Y, Yamaguchi Met al., 2005, Field test and analysis: The behavior of 3-J concentrator cells under the control of cell temperature, 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 754-757, ISSN: 0160-8371

Conference paper

Lee HS, Ekins-Daukes NJ, Sasaki T, Yamaguchi M, Khan A, Takamoto T, Agui T, Kamimura K, Kaneiwa M, Imaizumi M, Ohshima T, Itoh Het al., 2005, Defect observation of AllnGaP irradiated with 30keV protons for multi-junction space solar cells, 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 556-558, ISSN: 0160-8371

Conference paper

Yamaguchi M, Takamoto T, Araki K, Ekins-Daukes Net al., 2005, Multi-junction III-V solar cells: current status and future potential, SOLAR ENERGY, Vol: 79, Pages: 78-85, ISSN: 0038-092X

Journal article

Ekins-Daukes NJ, Lee HS, Sasaki T, Yamaguchi M, Khan A, Takamoto T, Agui T, Kamimura K, Kadeiwa M, Imaizumi M, Ohshima T, Kamiya T, Itoh H, Aratune Ket al., 2005, Native and radiation induced defects in lattice mismatched InGaAs and InGaP, 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 683-686, ISSN: 0160-8371

Conference paper

Khan A, Marupaduga S, Alam M, Ekins-Daukes NJ, Lee HS, Sasaki T, Yamaguchi Met al., 2005, Comparison of thermal annealing behavior of radiation induced defects in lattice mismatched InGaP and AllnGaP solar cells structures, 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 663-666, ISSN: 0160-8371

Conference paper

Ekins-Daukes NJ, Betts TR, Kemmoku Y, Araki K, Lee HS, Gottschalg R, Boreland MB, Infield DG, Yamaguchi Met al., 2005, Syracuse - A multi-junction concentrator system computer model, 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 651-654, ISSN: 0160-8371

Conference paper

Grunbaum E, Barkay Z, Shapira Y, Barnham K, Bushnell DB, Ekins-Daukes NJ, Mazzer M, Wilshaw PRet al., 2005, The electric field and dopant distribution in p-i-n structures observed by ionisation potential (dopant contrast) microscopy in the HRSEM, 14th Conference on Microscopy of Semiconducting Materials, Publisher: SPRINGER-VERLAG BERLIN, Pages: 503-506, ISSN: 0930-8989

Conference paper

Araki K, Uozumi H, Kondo M, Takamoto T, Aguil T, Kaneiwa M, Egami T, Hiramatsu M, Miyazaki Y, Kemmoku Y, Akisawa A, Lee HS, Ekins-Daukes NJ, Yamaguchi Met al., 2005, Development of a new 550X concentrator module with 3J cells - Performance and reliability, 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 631-634, ISSN: 0160-8371

Conference paper

Ekins-Daukes NJ, Honsberg CB, Yamaguchi M, 2005, Signature of intermediate band materials from luminescence measurements., 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 49-54, ISSN: 0160-8371

Conference paper

Ekins-Daukes NJ, Raffaelle RP, Barnham KWJ, Ballard IM, Freundlich A, Yamaguchi Met al., 2005, Minimum performance criteria for quantum well based junctions in multi-junction solar cells, 31st IEEE Photovoltaic Specialists Conference, Publisher: IEEE, Pages: 86-89, ISSN: 0160-8371

Conference paper

Khan A, Marupaduga S, Anandakrishnan SS, Alam M, Ekins-Daukes NJ, Lee HS, Sasaki T, Yamaguchi M, Takamoto T, Agui T, Kamimura K, Kaneiwa M, Imazumi Met al., 2004, Radiation response analysis of wide-gap <i>p</i>-AlInGaP for superhigh-efficiency space photovoltaics, APPLIED PHYSICS LETTERS, Vol: 85, Pages: 5218-5220, ISSN: 0003-6951

Journal article

Ekins-Daukes NJ, Lee HS, Sasaki T, Yamaguchi M, Khan A, Takamoto T, Agui T, Kamimura K, Kaneiwa M, Imaizumi M, Ohshima T, Kamiya Tet al., 2004, Carrier removal in lattice-mismatched InGaP solar cells under 1-MeV-electron irradiation, APPLIED PHYSICS LETTERS, Vol: 85, Pages: 2511-2513, ISSN: 0003-6951

Journal article

Narayanan KL, Soga T, Ekins-Daukes NJ, Yamaguchi Met al., 2004, Rectifying I-V Characteristics of n-Type Fluorine Implanted a-C/p-Type Si Heterojunction Diodes, Japanese Journal of Applied Physics, Part 2: Letters, Vol: 43, ISSN: 0021-4922

Heterojunction diodes are fabricated by fluorine ion implanted amorphous carbon (a-C: H) on p-type Si substrates. Various metallic contacts are formed on the fluorine implanted carbon side and copper contact is found to result in better a-C/p-Si heterojunction, and is found to be dose dependent. Formation of heterojunction diode confirms that the fluorine ion implanted a-C is n-type. Electrical resistivity is found to reduce with the ion dose and is attributed to the fluorine ions and ion beam induced localized heating effects. Raman scattering studies resulted in the formation of typical disorder D and graphitic G Raman bands in the implanted carbon films.

Journal article

Narayanan KL, Soga T, Ekins-Daukes NJ, Yamaguchi Met al., 2004, Rectifying I-V characteristics of n-type fluorine implanted a-C/p-type Si heterojunction diodes, JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, Vol: 43, Pages: L24-L26, ISSN: 0021-4922

Journal article

Barkay Z, Grunbaum E, Shapira Y, Wilshaw P, Barnham K, Bushnell B, Ekins-Daukes NJ, Mazzer Met al., 2004, High-resolution scanning electron microscopy of dopants in p-i-n junctions with quantum wells, Bristol, Institute of Physics Electron Microscopy and Analysis Group conference (EMAG 2003), University of Oxford, Oxford, England, 3 - 5 September 2003, Publisher: IOP Publishing Ltd, Pages: 143-146

Conference paper

Chatten AJ, Barnham KWJ, Buxton BF, Ekins-Daukes NJ, Malik MAet al., 2004, Quantum dot solar concentrators, Symposium on the Efficient Use of Solar Radiation in Photovoltaic Power Engineering, Publisher: MAIK NAUKA/INTERPERIODICA/SPRINGER, Pages: 909-917, ISSN: 1063-7826

Conference paper

Barkay Z, Grunbaum E, Shapira Y, Wilshaw P, Barnham K, Bushnell B, Ekins-Daukes NJ, Mazzer Met al., 2004, High-resolution scanning electron microscopy of dopants in p-i-n junctions with quantum wells, Bristol, Institute of Physics Electron Microscopy and Analysis Group conference (EMAG 2003), University of Oxford, Oxford, England, 3 - 5 September 2003, Publisher: IOP Publishing Ltd, Pages: 143-146

Conference paper

Ekins-Daukes NJ, Ballard I, Calder CDJ, Barnham KWJ, Hill G, Roberts JSet al., 2003, Photovoltaic efficiency enhancement through thermal up-conversion, APPLIED PHYSICS LETTERS, Vol: 82, Pages: 1974-1976, ISSN: 0003-6951

Journal article

Chatten AJ, Barnham KWJ, Buxton BF, Ekins-Daukes NJ, Malik MAet al., 2003, A new approach to modelling quantum dot concentrators, SOLAR ENERGY MATERIALS AND SOLAR CELLS, Vol: 75, Pages: 363-371, ISSN: 0927-0248

Journal article

Bushnell DB, Ekins-Daukes NJ, Barnham KWJ, Connolly JP, Roberts JS, Hill G, Airey R, Mazzer Met al., 2003, Short-circuit current enhancement in Bragg stack multi-quantum-well solar cells for multi-junction space cell applications, SOLAR ENERGY MATERIALS AND SOLAR CELLS, Vol: 75, Pages: 299-305, ISSN: 0927-0248

Journal article

Mazzer M, Barnham KWJ, Ekins-Daukes N, Bushnell DB, Connolly J, Torsello G, Diso D, Tundo S, Lomascolo M, Licciulli Aet al., 2003, The use of III-V quantum heterostructures in PV: thermodynamic issues, 3rd World Conference on Photovoltaic Energy Conversion, Publisher: WCPEC-3 ORGANIZING COMMITTEE, Pages: 2661-2665, ISSN: 2159-2330

Conference paper

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 JSet al., 2003, Recent results on quantum well solar cells, Tokyo, 3rd world conference on photovoltaic energy conversion, Osaka, Japan, May 2004, Publisher: Wcpec-3 Organizing Committee, Pages: 606-611

Conference paper

Ekins-Daukes NJ, Ballard I, Calder CD, Barnham KW, Hill G, Roberts JS, Trupke T, Brown Aet al., 2003, Photovoltaic efficiency enhancement through thermal up-conversion, 3rd world conference on photovoltaic energy conversion, Osaka, Japan, May 2003, Publisher: WCPEC-3 Organizing Committee, Pages: 262-265

Conference paper

Bushnell DB, Barnham KWJ, Connolly JP, Mazzer M, Ekins-Daukes NJ, Roberts JS, Hill G, Airey R, Nasi Let al., 2003, Effect of barrier composition and well number on the dark current of quantum well solar cells, Tokyo, 3rd world conference on photovoltaic energy conversion, Osaka, Japan, 11 - 18 May 2003, Publisher: WCPEC-3 Organizing Committee, Pages: 2706-2709

Conference paper

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 JSet al., 2003, Recent results on quantum well solar cells, Tokyo, 3rd world conference on photovoltaic energy conversion, Osaka, Japan, May 2004, Publisher: Wcpec-3 Organizing Committee, Pages: 606-611

Conference paper

Ekins-Daukes NJ, Calder CDJ, Ballard I, Barnham KWJ, Nelson J, Roberts JS, Hill Get al., 2003, Quantum Well and bulk quasi-fermi level behaviour under illuminated conditions, Tokyo, 3rd world conference on photovoltaic energy conversion, Osaka, Japan, 11 - 18 May 2003, Publisher: WCPEC-3 Organizing Committee, Pages: 2702-2705

Conference paper

Ekins-Daukes NJ, Calder CDJ, Ballard I, Barnham KWJ, Nelson J, Roberts JS, Hill Get al., 2003, Quantum Well and bulk quasi-fermi level behaviour under illuminated conditions, 3rd World Conference on Photovoltaic Energy Conversion, Publisher: WCPEC-3 ORGANIZING COMMITTEE, Pages: 2702-2705, ISSN: 2159-2330

Conference paper

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