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Two new efficient crystalline silicon light‐trapping textures
Author(s) -
Green Martin A.
Publication year - 1999
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/(sici)1099-159x(199907/08)7:4<317::aid-pip282>3.0.co;2-3
Subject(s) - trapping , silicon , optoelectronics , solar cell , band gap , crystalline silicon , trap (plumbing) , materials science , offset (computer science) , absorption (acoustics) , optics , physics , computer science , ecology , meteorology , composite material , biology , programming language
As a solar cell material, silicon has the disadvantage of an indirect bandgap, requiring both a photon and a phonon to be involved in near‐bandgap absorption processes. This disadvantage can be largely offset by schemes designed to trap incoming light within the body of the cell. Improved light‐trapping schemes have been a significant contributor to the increase in silicon solar cell performance from 21% efficiency to close to 25% over the last decade. Two new light‐trapping schemes are described, both with superior properties to those previously reported. Copyright © 1999 John Wiley & Sons, Ltd.