Non-fullerene acceptor with low energy loss and high external quantum efficiency: towards high performance polymer solar cells

被引：210

作者：

Li, Yongxi ^{[1
]}

Liu, Xiaodong ^{[2
]}

Wu, Fu-Peng ^{[1
]}

Zhou, Yi ^{[2
]}

Jiang, Zuo-Quan ^{[1
]}

Song, Bo ^{[2
]}

Xia, Yuxin ^{[3
]}

Zhang, Zhi-Guo ^{[4
]}

Gao, Feng ^{[3
]}

Inganas, Olle ^{[3
]}

Li, Yongfang ^{[2
,4
]}

Liao, Liang-Sheng ^{[1
]}

机构：

[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China

[2] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Lab Adv Optoelect Mat, Suzhou 215123, Jiangsu, Peoples R China

[3] Linkoping Univ, Biomol & Organ Elect, IFM, S-58183 Linkoping, Sweden

[4] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 16期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

POWER CONVERSION EFFICIENCY; OPEN-CIRCUIT VOLTAGE; BAND-GAP POLYMER; SINGLE-JUNCTION; SMALL-MOLECULE; 3D STRUCTURE; DONOR; BENZODITHIOPHENE; TRANSPORT;

D O I：

10.1039/c6ta00612d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A non-fullerene electron acceptor bearing a fused 10-heterocyclic ring (indacenodithiophenoindacenodithiophene) with a narrow band gap (similar to 1.5 eV) was designed and synthesized. It possesses excellent planarity and enhanced effective conjugation length compared to previously reported fused-ring electron acceptors. When this acceptor was paired with PTB7-Th and applied in polymer solar cells, a power conversion efficiency of 6.5% was achieved with a high open circuit voltage of 0.94 V. More significantly, an energy loss as low as 0.59 eV and an external quantum efficiency as high as 63% were obtained simultaneously.

引用

页码：5890 / 5897

页数：8

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