Solution-Processed and High-Performance Organic Solar Cells Using Small Molecules with a Benzodithiophene Unit

被引：677

作者：

Zhou, Jiaoyan ^{[1
,2
]}

Zuo, Yi ^{[1
,2
]}

Wan, Xiangjian ^{[1
,2
]}

Long, Guankui ^{[1
,2
]}

Zhang, Qian ^{[1
,2
]}

Ni, Wang ^{[1
,2
]}

Liu, Yongsheng ^{[1
,2
]}

Li, Zhi ^{[1
,2
]}

He, Guangrui ^{[1
,2
]}

Li, Chenxi ^{[1
,2
]}

Kan, Bin ^{[1
,2
]}

Li, Miaomiao ^{[1
,2
]}

Chen, Yongsheng ^{[1
,2
]}

机构：

[1] Nankai Univ, Coll Chem, Inst Polymer Chem, Key Lab Funct Polymer Mat, Tianjin 300071, Peoples R China

[2] Nankai Univ, Coll Chem, Inst Polymer Chem, Ctr Nanoscale Sci & Technol, Tianjin 300071, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 23期

关键词：

POWER-CONVERSION EFFICIENCY; OPEN-CIRCUIT VOLTAGE; POLYMER;

D O I：

10.1021/ja403318y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three small molecules named DR3TBDTT, DR3TBDTT-HD, and DR3TBD2T with a benzo[1,2-b:4,5-b']dithiophene (BDT) unit as the central building block have been designed and synthesized for solution processed bulk-heterojunction solar cells. Power conversion efficiencies (PCEs) of 8.12% (certified 7.61%) and 8.02% under AM 1.5G irradiation (100 mW cm(-2)) have been achieved for DR3TBDTT- and DR3TBDT2T-based organic photovoltaic devices (OPVs) with PC71BM as the acceptor, respectively. The better PCEs were achieved by improving the short-circuit current density without sacrificing the high open-circuit voltage and fill factor through the strategy of incorporating the advantages of both conventional small molecules and polymers for OPVs.

引用

页码：8484 / 8487

页数：4

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