Anthradithiophene-Containing Copolymers for Thin-Film Transistors and Photovoltaic Cells
Type
ArticleAuthors
Jiang, YingOkamoto, Toshihiro
Becerril, Hector A.
Hong, Sanghyun
Tang, Ming Lee
Mayer, Alex C.
Parmer, Jack E.
McGehee, Michael D.
Bao, Zhenan
Date
2010-08-10Permanent link to this record
http://hdl.handle.net/10754/597585
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Show full item recordAbstract
We synthesized anthradithiophene-cyclopentadithiophene conjugated copolymers via Stille coupling. The anthradithiophene core was verified to be superior in stability compared to pentacene toward Diels-Alder cycloaddition and therefore more compatible with fullerenes, acceptor material commonly used in bulk heterojunction (BHJ) photovoltaic cells. The polymers exhibit high film absorption coefficients of 105 cm-1, an order of magnitude higher than previously reported anthradithiophene-dialkylfluorene copolymers. Short-circuit currents exceeding 5 mA/cm2 and a BHJ device efficiency close to 1% were achieved when device morphology was improved with diiodooctane as a solvent additive. This is the highest power conversion efficiency achieved by an acene-containing polymer so far. © 2010 American Chemical Society.Citation
Jiang Y, Okamoto T, Becerril HA, Hong S, Tang ML, et al. (2010) Anthradithiophene-Containing Copolymers for Thin-Film Transistors and Photovoltaic Cells. Macromolecules 43: 6361–6367. Available: http://dx.doi.org/10.1021/ma1001639.Sponsors
Z.B. acknowledges financial support from the Stanford Global Climate and Energy Project and the Air Force Office of Scientific Research. This publication was also partially based on work supported by the Center for Advanced Molecular Photovoltaics (Award No. KUS-C1-015-21), made by King Abdullah University of Science and Technology (KAUST). Y.J. acknowledges financial support from the Agency of Science, Technology and Research of Singapore.Publisher
American Chemical Society (ACS)Journal
Macromoleculesae974a485f413a2113503eed53cd6c53
10.1021/ma1001639