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Amorphous/crystalline silicon heterojunction solar cells with black silicon texture
Author(s) -
Mews Mathias,
Leendertz Caspar,
Algasinger Michael,
Koynov Svetoslav,
Korte Lars
Publication year - 2014
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201409327
Subject(s) - materials science , amorphous silicon , silicon , nanocrystalline silicon , optoelectronics , heterojunction , crystalline silicon , amorphous solid , chemical vapor deposition , passivation , black silicon , epitaxy , solar cell , texture (cosmology) , polymer solar cell , nanotechnology , chemistry , crystallography , layer (electronics) , computer science , artificial intelligence , image (mathematics)
Excellent passivation of black silicon surfaces by thin amorphous silicon layers deposited with plasma enhanced chemical vapor deposition is demonstrated. Minority charge carrier lifetimes of 1.3 milliseconds, enabling an implied open‐circuit voltage of 714 mV, were achieved. The influence of amorphous silicon parasitic epitaxial growth and thickness, as well as of the texture depth is investigated. Furthermore, quantum efficiency gains for wavelengths above 600 nm, as compared to random textured solar cells, are demonstrated in 17.2% efficient amorphous–crystalline silicon heterojunction solar cells with black silicon texture. (© 2014 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)