Nonfullerene acceptors with a novel nonacyclic core for high-performance polymer solar cells

被引：6

作者：

Hou, Ran ^{[1
]}

Li, Miao ^{[1
]}

Wang, Junkai ^{[1
]}

Bi, Zhaozhao ^{[2
]}

Feng, Shiyu ^{[1
]}

Xu, Xinjun ^{[1
]}

Ma, Wei ^{[2
]}

Bo, Zhishan ^{[1
]}

机构：

[1] Beijing Normal Univ, Coll Chem, Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2019年 / 7卷 / 11期

关键词：

RING ELECTRON-ACCEPTOR; EFFICIENCY; SOLUBILITY; MORPHOLOGY; EXTENSION; DESIGN;

D O I：

10.1039/c8tc06245e

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We developed two new fused-ring electron acceptors (FREAs) (IDIDTT and IDIDTT-2F) with a nonacyclic core, which bears eight side chains. The rigid coplanar nonacyclic core structure could broaden the absorption to the near-infrared (NIR) region, reduce the nonradiative energy loss, and enhance the charge transport. Pairing with PBDB-T, polymer solar cells were fabricated and investigated. IDIDTT-2F-based optimized devices showed a power conversion efficiency (PCE) of 11.29% with a V-oc of 0.92 V, J(sc) of 19.79 mA cm(-2), and FF of 61.85%. Our results showed that FREAs with the nonacyclic core could be promising in achieving high performance polymer solar cells.

引用

页码：3335 / 3341

页数：7

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