Energy-Level Modulation of Small-Molecule Electron Acceptors to Achieve over 12% Efficiency in Polymer Solar Cells

被引：1337

作者：

Li, Sunsun ^{[1
,2
]}

Ye, Long ^{[3
,4
]}

Zhao, Wenchao ^{[1
,2
]}

Zhang, Shaoqing ^{[1
]}

Mukherjee, Subhrangsu ^{[3
,4
]}

Ade, Harald ^{[3
,4
]}

Hou, Jianhui ^{[1
,2
]}

机构：

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

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

[3] North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA

[4] North Carolina State Univ, Organ & Carbon Elect Lab ORaCEL, Raleigh, NC 27695 USA

来源：

ADVANCED MATERIALS | 2016年 / 28卷 / 42期

关键词：

OPEN-CIRCUIT VOLTAGE; PHOTOVOLTAIC POLYMERS; CONVERSION EFFICIENCY; ORGANIC PHOTOVOLTAICS; BLEND MORPHOLOGY; PERFORMANCE; DESIGN; DONOR; AGGREGATION; ORIENTATION;

D O I：

10.1002/adma.201602776

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fine energy-level modulations of small-molecule acceptors (SMAs) are realized via subtle chemical modifications on strong electron-withdrawing end-groups. The two new SMAs (IT-M and IT-DM) end-capped by methyl-modified dicycanovinylindan-1-one exhibit upshifted lowest unoccupied molecular orbital (LUMO) levels, and hence higher open-circuit voltages can be observed in the corresponding devices. Finally, a top power conversion efficiency of 12.05% is achieved.

引用

收藏

页码：9423 / +

页数：8

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