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Efficient Polymer Solar Cells with Thin Active Layers Based on Alternating Polyfluorene Copolymer/Fullerene Bulk Heterojunctions
Author(s) -
Chen MeiHsin,
Hou Jianhui,
Hong Ziruo,
Yang Guanwen,
Sista Srinivas,
Chen LiMin,
Yang Yang
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200900510
Subject(s) - polyfluorene , materials science , polymer solar cell , copolymer , energy conversion efficiency , polymer , fullerene , optoelectronics , active layer , organic solar cell , heterojunction , layer (electronics) , nanotechnology , composite material , organic chemistry , chemistry , thin film transistor
Efficient (4.5% power conversion efficiency) polymer solar cells based on an alternating polyfluorene copolymer are demonstrated. The highest internal quantum efficiency obtained was 87%. The semi‐transparent active layer (only 47 nm thick) shows the uniqueness of polymer solar cells and their unconventional applications, such as translucent solar windows for buildings and automobiles.