The Role of Additive in Diketopyrrolopyrrole-Based Small Molecular Bulk Heterojunction Solar Cells

被引：56

作者：

Wang, Hongyu ^{[1
]}

Liu, Feng ^{[2
]}

Bu, Laju ^{[2
]}

Gao, Jun ^{[1
]}

Wang, Cheng ^{[4
]}

Wei, Wei ^{[3
]}

Russell, Thomas P. ^{[2
]}

机构：

[1] Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China

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

[3] Nanjing Univ Posts & Telecommun, Inst Adv Mat, Nanjing 210046, Jiangsu, Peoples R China

[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

ADVANCED MATERIALS | 2013年 / 25卷 / 45期

基金：

中国国家自然科学基金;

关键词：

organic photovoltaics; morphology; crystallization; X-ray diffraction; ORGANIC PHOTOVOLTAIC CELLS; PROCESSED SMALL-MOLECULE; BAND-GAP; BENZODITHIOPHENE UNIT; EFFICIENCY; POLYMER; PERFORMANCE; MORPHOLOGY; POLY(3-HEXYLTHIOPHENE); BLENDS;

D O I：

10.1002/adma.201302848

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new diketopyrrolopyrrole-based small molecule for solution-processed OPVs is synthesized. The chemical additive has a profound effect in refining the morphology and, thus, significantly increases the efficiencies of the devices. The role of the additive is characterized by various techniques and the additive-driven structure-property relationship is established, which reveals that the additive affects the crystallization, PCBM aggregation, and phase separation. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：6519 / 6525

页数：7

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