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He Y, You J, Dou L, et al. High performance low band gap polymer solar cells with a non-conventional acceptor. Chem Commun (Camb). 2012;48(61):7616-8doi: 10.1039/c2cc33282e.
He, Y., You, J., Dou, L., Chen, C. C., Richard, E., Cha, K. C., Wu, Y., Li, G., & Yang, Y. (2012). High performance low band gap polymer solar cells with a non-conventional acceptor. Chemical communications (Cambridge, England), 48(61), 7616-8. https://doi.org/10.1039/c2cc33282e
He, Youjun, et al. "High performance low band gap polymer solar cells with a non-conventional acceptor." Chemical communications (Cambridge, England) vol. 48,61 (2012): 7616-8. doi: https://doi.org/10.1039/c2cc33282e
He Y, You J, Dou L, Chen CC, Richard E, Cha KC, Wu Y, Li G, Yang Y. High performance low band gap polymer solar cells with a non-conventional acceptor. Chem Commun (Camb). 2012 Aug 07;48(61):7616-8. doi: 10.1039/c2cc33282e. Epub 2012 Jun 26. PMID: 22732926.
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Chem Commun (Camb). 2012 Aug 07;48(61):7616-8. doi: 10.1039/c2cc33282e. Epub 2012 Jun 26.

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

Chemical communications (Cambridge, England)

Youjun He, Jingbi You, Letian Dou, Chun-Chao Chen, Eric Richard, Kitty C Cha, Yue Wu, Gang Li, Yang Yang

Affiliations

  1. Department of Materials Science and Engineering & California Nanosystems Institute, University of California, Los Angeles, California 90095, USA.

PMID: 22732926 DOI: 10.1039/c2cc33282e

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 PC(70)BM. Its electron mobility reached 6.32 × 10(-4) cm(2) V(-1) s(-1), which is slightly lower than 9.55 × 10(-4) cm(2) V(-1) s(-1) of PC(70)BM. 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.

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