Molecular doping enhances photoconductivity in polymer bulk heterojunction solar cells
Yuan Zhang1, Huiqiong Zhou, Jason Seifter
1Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, CA 93106, California, USA.
Advanced Materials (Deerfield Beach, Fla.)
|October 10, 2013
Abstract:
Addition of low concentrations (<1:100, dopant:donor) of a fluorinated p-type dopant, F4-TCNQ leads to a considerable enhancement of the photocurrent in PCDTBT:PC70 BM bulk heterojunction solar cells. As a result, the power conversion efficiency increases from 6.41% to 7.94 %.
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