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Textured monocrystalline thin‐film Si cells from the porous silicon (PSI) process
Author(s) -
Brendel Rolf,
Auer Richard,
Artmann Hans
Publication year - 2001
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.377
Subject(s) - monocrystalline silicon , materials science , porous silicon , photolithography , silicon , optoelectronics , porosity , trapping , layer (electronics) , optics , nanotechnology , composite material , ecology , physics , biology
We have fabricated a textured monocrystalline Si solar cell with a thickness of 15·5 μm and a confirmed efficiency of 12·2% using porous silicon (PSI) for layer transfer. The PSI process avoids photolithography and high‐temperature oxidation. The cell has a surface that is textured with randomly positioned inverted pyramids for light trapping. The device does not yet fully exploit the light‐trapping capability of this film shape, owing to a small back‐surface reflectance. Copyright © 2001 John Wiley & Sons, Ltd.