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Geisz, John F. and Steiner, Myles A. and García Vara, Iván and France, Ryan M. and Friedman, Daniel J. and Kurtz, Sarah R. (2015). Implications of redesigned, high-radiative-efficiency GaInP junctions on III-V multijunction concentrator solar cells. "IEEE Journal of Photovoltaics", v. 5 (n. 1); pp. 418-424. ISSN 2156-3381. https://doi.org/10.1109/JPHOTOV.2014.2361014.
Title: | Implications of redesigned, high-radiative-efficiency GaInP junctions on III-V multijunction concentrator solar cells |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | IEEE Journal of Photovoltaics |
Date: | January 2015 |
ISSN: | 2156-3381 |
Volume: | 5 |
Subjects: | |
Freetext Keywords: | Luminescent coupling, multijunction photovoltaic cells, radiative efficiency, III-V |
Faculty: | E.T.S.I. Telecomunicación (UPM) |
Department: | Electrónica Física |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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Nonradiative recombination in inverted GaInP junctions is dramatically reduced using a rear-heterojunction design rather than the more traditional thin-emitter homojunction design. When this GaInP junction design is included in inverted multijunction solar cells, the high radiative efficiency translates into both higher subcell voltage and high luminescence coupling to underlying subcells, both of which contribute to improved performance. Subcell voltages within two and four junction devices are measured by electroluminescence and the internal radiative efficiency is quantified as a function of recombination current using optical modeling. The performance of these concentrator multijunction devices is compared with the Shockley–Queisser detailed-balance radiative limit, as well as an internal radiative limit, which considers the effects of the actual optical environment in which a perfect junction may exist.
Type | Code | Acronym | Leader | Title |
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FP7 | 299878 | METACELLS | UNIVERSIDAD POLITECNICA DE MADRID | Advanced epitaxy of metamorphic semiconductor structures for multijunction solar cells |
Item ID: | 40484 |
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DC Identifier: | http://oa.upm.es/40484/ |
OAI Identifier: | oai:oa.upm.es:40484 |
DOI: | 10.1109/JPHOTOV.2014.2361014 |
Official URL: | https://ieeexplore.ieee.org/document/6930722 |
Deposited by: | Memoria Investigacion |
Deposited on: | 23 May 2016 17:53 |
Last Modified: | 05 Jun 2019 13:46 |