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Flexible a‐Si:H/nc‐Si:H tandem thin film silicon solar cells on plastic substrates with i ‐layers made by hot‐wire CVD
Author(s) -
Li Hongbo,
van der Werf C. H. M.,
Borreman A.,
Rath J. K.,
Schropp Ruud E. I.
Publication year - 2008
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.200802109
Subject(s) - tandem , foil method , materials science , silicon , aluminum foil , thin film , aluminium , optoelectronics , thin film solar cell , solar cell , plastic film , composite material , nanotechnology , layer (electronics)
In this letter we report the result of an a‐Si:H/nc‐Si:H tandem thin film silicon solar mini‐module fabricated on plastic foil containing intrinsic silicon layers made by hot‐wire CVD (efficiency 7.4%, monolithically series‐connected, aperture area 25 cm 2 ). We used the Helianthos cell transfer process. The cells were first deposited on a temporary aluminum foil carrier, which allows the use of the optimal processing temperatures, and then transferred to a plastic foil. This letter reports the characteristics of the flexible solar cells obtained in this manner, and compares the results with those obtained on reference glass substrates. The research focus for implementation of the hot‐wire CVD technique for the roll‐to‐roll process is also discussed. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)