Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells

被引：2596

作者：

Zhao, Wenchao ^{[1
,2
]}

Li, Sunsun ^{[1
,2
]}

Yao, Huifeng ^{[1
,2
]}

Zhang, Shaoqing ^{[1
,2
]}

Zhang, Yun ^{[1
,2
]}

Yang, Bei ^{[1
,2
]}

Hou, Jianhui ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Res Educat Ctr Excellence Mol Sci, State Key Lab Polymer Phys & Chem,Inst Chem, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2017年 / 139卷 / 21期

关键词：

ENERGY-LEVEL MODULATION; RING ELECTRON-ACCEPTOR; 11-PERCENT EFFICIENCY; POLYMER; PERFORMANCE; FLUORINE; DESIGN; ATOM;

D O I：

10.1021/jacs.7b02677

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new polymer donor (PBDB-T-SF) and a new small molecule acceptor (IT-4F) for fullerene-free organic solar cells (OSCs) were designed and synthesized. The influences of fluorination on the absorption spectra, molecular energy levels, and charge mobilities of the donor and acceptor were systematically studied. The PBDB-T-SF:IT-4F-based OSC device showed a record high efficiency of 13.1%, and an efficiency of over 12% can be obtained with a thickness of 100-200 nm, suggesting the promise of fullerene-free OSCs in practical applications.

引用

页码：7148 / 7151

页数：4

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