Role of buffer in organic solar cells using C60 as an acceptor
QL Song, CM Li, ML Wang, XY Sun, XY Hou - Applied Physics Letters, 2007 - pubs.aip.org
A thin buffer layer is indispensable for a high power conversion efficiency in an organic solar
cell with fullerene (C 60) as the acceptor. In present work, the authors proposed that the role
of the buffer layer in an organic solar cell is to prohibit the electron transfer from metal to C
60, and thus a desired built-in electric field can promote the free carrier collection. The built-
in electric field in different organic solar cells with and without the thin C 60 layer was
studied by the transient photovoltage technique. The experimental results supported our …
cell with fullerene (C 60) as the acceptor. In present work, the authors proposed that the role
of the buffer layer in an organic solar cell is to prohibit the electron transfer from metal to C
60, and thus a desired built-in electric field can promote the free carrier collection. The built-
in electric field in different organic solar cells with and without the thin C 60 layer was
studied by the transient photovoltage technique. The experimental results supported our …
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