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Issue 61, 2012
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High performance low band gap polymer solar cells with a non-conventional acceptor

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Abstract

A novel C70 fullerene derivative was designed and synthesized by [4+2] cyclic addition reaction between indene derivative (methyl 1H-indene-3-carboxylate) and C70. The absorption and photoluminescence of H120 and its mixed films with different polymer donor materials were investigated, as well as its electrochemical property and electron mobility. It was found that H120 has 0.05 eV higher LUMO level than that of PC70BM. Its electron mobility reached 6.32 × 10−4 cm2 V−1 s−1, which is slightly lower than 9.55 × 10−4 cm2 V−1 s−1 of PC70BM. The photovoltaic devices based on P3HT, and two high efficiency low band gap polymers, PBDTTT-C and PBDTTDPP as donors, with H120 as an acceptor gave power conversion efficiencies of 4.2%, 6.0% and 6.2%, respectively.

Graphical abstract: High performance low band gap polymer solar cells with a non-conventional acceptor

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Publication details

The article was received on 08 May 2012, accepted on 11 Jun 2012 and first published on 13 Jun 2012


Article type: Communication
DOI: 10.1039/C2CC33282E
Chem. Commun., 2012,48, 7616-7618

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    High performance low band gap polymer solar cells with a non-conventional acceptor

    Y. He, J. You, L. Dou, C. Chen, E. Richard, K. C. Cha, Y. Wu, G. Li and Y. Yang, Chem. Commun., 2012, 48, 7616
    DOI: 10.1039/C2CC33282E

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