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Poly(3‐hexylthiophene) Fibers for Photovoltaic Applications
Author(s) -
Berson S.,
De Bettignies R.,
Bailly S.,
Guillerez S.
Publication year - 2007
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200600922
Subject(s) - materials science , nanofiber , fabrication , energy conversion efficiency , active layer , photovoltaic system , acceptor , organic solar cell , compatibility (geochemistry) , nanotechnology , hybrid solar cell , solid state , polymer solar cell , chemical engineering , layer (electronics) , optoelectronics , polymer , composite material , engineering physics , medicine , ecology , alternative medicine , physics , pathology , condensed matter physics , engineering , biology , thin film transistor
A new method for the preparation of active layers of polymeric solar cells without the need for thermal post‐treatment to obtain optimal performance is presented. Poly(3‐hexylthiophene) (P3HT) nanofibers are obtained in highly concentrated solutions, which enables the fabrication of nanostructured films on various substrates. Here, the preparation of these fibers along with their characterization in solution and in the solid state is detailed. By mixing these nanofibers with a molecular acceptor such as [6,6]‐phenyl C 61 ‐butyric acid methyl ester (PCBM) in solution, it is possible to obtain in a simple process a highly efficient active layer for organic solar cells with a demonstrated power conversion efficiency (PCE) of up to 3.6 %. The compatibility of the room‐temperature process developed herein with commonly used plastic substrates may lead to applications such as the development of large‐area flexible solar cells.