Effect of Fluorine Content in Thienothiophene-Benzodithiophene Copolymers on the Morphology and Performance of Polymer Solar Cells
Chemistry of Materials2014Vol. 26(9), pp. 3009–3017
Citations Over TimeTop 1% of 2014 papers
Peng Liu, Kai Zhang, Feng Liu, Yaocheng Jin, Shengjian Liu, Thomas P. Russell, Hin‐Lap Yip, Fei Huang, Yong Cao
Abstract
A new family of polythienothiophene-co-benzodithiophene copolymers with different amounts of fluorine decoration (PBFx) had been successfully synthesized. Detailed structure–property investigations covering physical properties, morphology, and solar cell performance with respect to the fluorine content in the polymers were performed by a series of structural characterization techniques. A PCE of 8.75% was obtained with the highest fluorinated polymer; the morphological trends, as well as the crystalline structure, were also investigated, shedding light on this important material modification.
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