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Issue 16, 2017
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Main-chain poly(fullerene) multiblock copolymers as organic photovoltaic donor–acceptors and stabilizers

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Abstract

A multi-block copolymer based on main-chain fullerene repeating units is used in organic photovoltaic devices for the first time. A poly(fullerene) (PFDP) is linked at the chain-ends to poly(3-hexylthiophene) (P3HT) to give poly[poly(3-hexylthiophene)-block-poly{([1,4]-fullerene)-alt-[1,4-dimethylene-2,5-bis(cyclohexylmethyl ether)phenylene]}] (P3HT-b-PFDP). While normal devices give poor results, inverted architectures result in near 50-fold improvements in performances to a block copolymer efficiency of 2.8% for this novel system. PFDP-b-P3HT is also employed as an additive to P3HT:PCBM bulk heterojunction devices and demonstrates increases from 3.6% to 4.2%, and remarkably gives a stable flat-line efficiency over the time studied.

Graphical abstract: Main-chain poly(fullerene) multiblock copolymers as organic photovoltaic donor–acceptors and stabilizers

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Publication details

The article was received on 04 Mar 2017, accepted on 27 Mar 2017 and first published on 28 Mar 2017


Article type: Paper
DOI: 10.1039/C7TA01980G
J. Mater. Chem. A, 2017,5, 7533-7544

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    Main-chain poly(fullerene) multiblock copolymers as organic photovoltaic donor–acceptors and stabilizers

    M. Raissi, H. Erothu, E. Ibarboure, H. Bejbouji, H. Cramail, E. Cloutet, L. Vignau and R. C. Hiorns, J. Mater. Chem. A, 2017, 5, 7533
    DOI: 10.1039/C7TA01980G

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