Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage

被引：377

作者：

Yao, Huifeng ^{[1
,2
]}

Ye, Long ^{[3
]}

Hou, Junxian

Jang, Bomee ^{[5
]}

Han, Guangchao ^{[2
,6
]}

Cui, Yong ^{[1
,2
]}

Su, Gregory M. ^{[7
]}

Wang, Cheng ^{[7
]}

Gao, Bowei ^{[1
,2
]}

Yu, Runnan ^{[1
,2
]}

Zhang, Hao ^{[1
,2
]}

Yi, Yuanping ^{[2
,6
]}

Woo, Han Young ^{[5
]}

Ade, Harald ^{[3
]}

Hou, Jianhui ^{[1
,2
,4
]}

机构：

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

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

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

[4] Hebei Univ Engn, Coll Mat Sci & Engn, Dept Composite Mat & Engn, Handan 056038, Peoples R China

[5] Korea Univ, Dept Chem, Seoul 136701, South Korea

[6] Chinese Acad Sci, Key Lab Organ Solids, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[7] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA

来源：

ADVANCED MATERIALS | 2017年 / 29卷 / 21期

基金：

新加坡国家研究基金会;

关键词：

ELECTRON-ACCEPTOR; MOLECULAR DESIGN; POLYMER; AGGREGATION; MORPHOLOGY;

D O I：

10.1002/adma.201700254

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new acceptor-donor-acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d': 2,3-d']-s-indaceno[1,2-b: 5,6-b']dithiophene) is designed and synthesized via simple end-group modification. ITCC shows improved electron-transport properties and a high-lying lowest unoccupied molecular orbital level. A power conversion efficiency of 11.4% with an impressive V-OC of over 1 V is recorded in photovoltaic devices, suggesting that ITCC has great potential for applications in tandem organic solar cells.

引用

页数：8

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