Polymers and Polymer Composites

PHOTOPHYSICS AND APPLICATIONS IN PLASTIC SOLAR CELLS OF CONJUGATED POLYMER/FULLERENE COMPOSITES

August 1, 2003 By: Lin H; Huang H; Qingguo H; Bai F Research article

Title: PHOTOPHYSICS AND APPLICATIONS IN PLASTIC SOLAR CELLS OF CONJUGATED POLYMER/FULLERENE COMPOSITES
Page Range: p.679-689
Author(s): Lin H; Huang H; Qingguo H; Bai F
File size: 132K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 11
Issue No: No. 8

Abstract
Two types of conjugated polymer were synthesised for application in solar cells. One type was a linear conjugated alternating copolymer containing hole-transporting groups (e.g. triphenylamine and N-substituted carbazole) in the backbone, and the other was a PPV-based hyperbranched conjugated polymer. The composites of these polymers with fullerene were investigated, with particular reference to the photoinduced electron transfer and other related photophysical processes occurring in the composites. Strong fluorescence quenching of these conjugated polymers on mixing them with C60 in dilute solution. Anion radical species of C60 were observed in ESR measurements as a result of photoinduced charge separation. The quenching constants vary with different conjugated polymers, and thus provide a quantum measurement for the interaction between the donor and acceptor. An energy conversion efficiency of up to 1.1% is reported for solar cells manufactured from conjugated polymer/fullerene composites. 17 refs.


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