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Evaluation of the efficiency potential of intermediate band solar cells based on thin-film chalcopyrite materials
Author(s) -
Antonio Martı́,
David Fuertes Marrón,
A. Ĺuque
Publication year - 2008
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.2901213
Subject(s) - chalcopyrite , solar cell , thin film solar cell , thin film , limiting , optoelectronics , materials science , radiative transfer , chemistry , optics , nanotechnology , physics , metallurgy , copper , engineering , mechanical engineering
This paper discusses the potential of the intermediate band solar cell _IBSC_ concept to improve the efficiency of thin-film chalcopyrite solar cells. The results show that solar cells based on CuGaS2, with a radiative limiting efficiency of 46.7%, exhibit the highest potential. A simple method for the identification of transition elements that when incorporated in CuGaS2 could possibly introduce an intermediate band is also described. The IBSC concept is also applied under the assumptions that thin-film solar cells are not to be operated under concentrated light and that a non-negligible contribution of nonradiative recombination exists

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