Subtle Balance Between Length Scale of Phase Separation and Domain Purification in Small-Molecule Bulk-Heterojunction Blends under Solvent Vapor Treatment

被引：170

作者：

Li, Miaomiao ^{[1
]}

Liu, Feng ^{[2
]}

Wan, Xiangjian ^{[1
]}

Ni, Wang ^{[1
]}

Kan, Bin ^{[1
]}

Feng, Huanran ^{[1
]}

Zhang, Qian ^{[1
]}

Yang, Xuan ^{[1
]}

Wang, Yunchuang ^{[1
]}

Zhang, Yamin ^{[1
]}

Shen, Yan ^{[3
]}

Russell, Thomas P. ^{[4
]}

Chen, Yongsheng ^{[1
]}

机构：

[1] Nankai Univ, Coll Chem, Ctr Nanoscale Sci & Technol,Inst Polymer Chem, Collaborat Innovat Ctr Chem Sci & Engn Tianjin,Ke, Tianjin 300071, Peoples R China

[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA

[3] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

[4] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA

来源：

ADVANCED MATERIALS | 2015年 / 27卷 / 40期

关键词：

morphology; small-molecule-based solar cells; solvent vapor annealing; POLYMER SOLAR-CELLS; POWER CONVERSION EFFICIENCY; OPEN-CIRCUIT VOLTAGE; BENZODITHIOPHENE UNIT; ORGANIC PHOTOVOLTAICS; PERFORMANCE; MORPHOLOGY; RECOMBINATION; 10-PERCENT; LAYER;

D O I：

10.1002/adma.201502645

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of solvents with different solubilities for DR3TBDTT and PC71BM, and different boiling points, is used for solvent vapor annealing (SVA) treatment to systematically investigate the solvent-morphologyperformance relationship. The presence of solvent molecules inside bulk-heterojunction (BHJ) thin films promotes the mobility of both donor and acceptor molecules, leading to crystallization and aggregation, which are important in modulating morphology.

引用

页码：6296 / 6302

页数：7

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