Issue 22, 2013

New polymer acceptors for organic solar cells: the effect of regio-regularity and device configuration

Abstract

Two polymers, r-PDI-diTh and i-PDI-diTh, were synthesized as acceptors applicable for solution-processed BHJ OSCs. By introducing a bulky, dove tailed side chain and thereby suppressing the π–π interactions between perylenediimide units in the backbones of acceptor polymers, more effective phase segregation of these acceptors with a donor polymer (P3HT) was realized. By employing the inverted device configuration to better match the vertical phase separation of donor–acceptor polymers produced by solution processing, undesirable polaron pair recombination was suppressed, and PCE up to 2.17% was achieved from the regio-regular acceptor r-PDI-diTh.

Graphical abstract: New polymer acceptors for organic solar cells: the effect of regio-regularity and device configuration

Article information

Article type
Paper
Submitted
01 Mar 2013
Accepted
05 Apr 2013
First published
05 Apr 2013

J. Mater. Chem. A, 2013,1, 6609-6613

New polymer acceptors for organic solar cells: the effect of regio-regularity and device configuration

Y. Zhou, Q. Yan, Y. Zheng, J. Wang, D. Zhao and J. Pei, J. Mater. Chem. A, 2013, 1, 6609 DOI: 10.1039/C3TA10864C

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