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Photon recycling in the graded bandgap solar cell
Author(s) -
Rafat N. H.,
Abdel Haleem A. M.,
Habib S. E. D.
Publication year - 2006
Publication title -
progress in photovoltaics: research and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.286
H-Index - 131
eISSN - 1099-159X
pISSN - 1062-7995
DOI - 10.1002/pip.677
Subject(s) - band gap , solar cell , photon , attenuation coefficient , absorption (acoustics) , boltzmann equation , boltzmann constant , theory of solar cells , physics , radiative transfer , recombination , spontaneous emission , expression (computer science) , optics , optoelectronics , computational physics , materials science , solar cell efficiency , chemistry , quantum mechanics , computer science , biochemistry , gene , laser , programming language
We derived a general integral expression for the carrier radiative recombination rate in solar cells. The photon Boltzmann equation is solved taking into account the photon recycling effect inside the cell and assuming arbitrary spatial variation of the absorption coefficient. This expression can thus be used for graded bandgap solar cells. Copyright © 2006 John Wiley & Sons, Ltd.