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Enhancing the efficiency of MEH‐PPV and PCBM based polymer solar cells via optimization of device configuration and processing conditions
Author(s) -
Chang En Chung,
Chao ChingIan,
Lee RongHo
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.23657
Subject(s) - materials science , pedot:pss , cathode , anode , polymer solar cell , energy conversion efficiency , open circuit voltage , conductive polymer , acceptor , solar cell , short circuit , hybrid solar cell , polymer , photovoltaic system , chemical engineering , optoelectronics , electron mobility , composite material , voltage , electrode , chemistry , quantum mechanics , engineering , biology , condensed matter physics , ecology , physics
Polymer solar cells were fabricated based on an interpenetrated network of conjugated polymer poly(2‐methoxy‐5‐(2′‐ethyl‐hexyloxy)‐1,4‐phenylenevinylene) (MEH‐PPV) as electron donor and fullerene derivative (6,6)‐phenyl‐C 61 ‐butyric acid methyl ester (PCBM) as electron acceptor. The photovoltaic performances were strongly dependent on the surface treatment of anode, conductivity of hole‐transporting material, the thickness of MEH‐PPV:PCBM composite film, and the cathode configuration. Best photovoltaic performances were obtained for the solar cell constructed with O 2 plasma‐treated anode glass, high conductivity hole‐transporting material PEDOT, photoactive film thickness of 180 nm, and calcium/silver cathode. Open circuit voltage of 0.79 V, short circuit current density of 4.79 mA/cm 2 , fill factor of 44.4%, and 2.07% power conversion efficiency were obtained for the solar cell under 80 mW/cm 2 white light from a halogen lamp. The influences of device fabrication conditions and configuration on the photovoltaic performance of MEH‐PPV:PCBM composite film‐based polymer solar cells were discussed in detail. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 1919–1924, 2006