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Lightweight, thin‐film Si heterojunction solar cells
Author(s) -
Anderson W. A.,
Jagannathan B.,
Klementieva E.
Publication year - 1997
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(199711/12)5:6<433::aid-pip195>3.0.co;2-p
Subject(s) - materials science , heterojunction , solar cell , thin film , wafer , optoelectronics , deposition (geology) , amorphous solid , energy conversion efficiency , layer (electronics) , photovoltaic system , nanotechnology , chemistry , crystallography , electrical engineering , paleontology , engineering , sediment , biology
This approach to a thin‐film Si solar cell combines theoretical analysis, growth of thin‐film crystalline Si (c‐Si) and deposition of amorphous Si (a‐Si:H) to form the heterojunction. The PC‐1D model predicts a potential efficiency of >16% for an Si thickness of 10 μm. Liquid phase growth (LPG) of the base‐layer c‐Si gave a carrier mobility of 100 cm 2 V −1 s −1 and a lifetime of 8 μs. Microwave electron cyclotron resonance (MECR) deposition of a‐Si:H onto a c‐Si wafer gives over 10% photovoltaic conversion efficiency. Work continues to combine MECR with LPG to give a thin‐film Si solar cell. © 1997 John Wiley & Sons, Ltd.