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

被引：27

作者：

He, Youjun ^{[1
,2
]}

You, Jingbi ^{[1
,2
]}

Dou, Letian ^{[1
,2
]}

Chen, Chun-Chao ^{[1
,2
]}

Richard, Eric ^{[1
,2
]}

Cha, Kitty C. ^{[1
,2
]}

Wu, Yue ^{[3
]}

Li, Gang ^{[1
,2
]}

Yang, Yang ^{[1
,2
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Calif Nanosyst Inst, Los Angeles, CA 90095 USA

[3] Solarmer Energy Inc, El Monte, CA 91731 USA

来源：

CHEMICAL COMMUNICATIONS | 2012年 / 48卷 / 61期

关键词：

OPEN-CIRCUIT VOLTAGE; FULLERENE BISADDUCTS; PHOTOVOLTAIC CELLS; EFFICIENCY; ENHANCEMENT; NETWORK; DONOR;

D O I：

10.1039/c2cc33282e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 x 10(-4) cm(2) V-1 s(-1), which is slightly lower than 9.55 x 10(-4) cm(2) 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.

引用

页码：7616 / 7618

页数：3

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