Efficient Small Molecule Bulk Heterojunction Solar Cells with High Fill Factors via Pyrene-Directed Molecular Self-Assembly

被引：357

作者：

Lee, Olivia P. ^{[1
,2
,3
]}

Yiu, Alan T. ^{[1
,2
,3
]}

Beaujuge, Pierre M. ^{[1
,2
,3
,4
]}

Woo, Claire H. ^{[1
,2
,3
]}

Holcombe, Thomas W. ^{[1
,2
]}

Millstone, Jill E. ^{[1
,2
,3
]}

Douglas, Jessica D. ^{[1
,2
,3
]}

Chen, Mark S. ^{[1
,2
]}

Frechet, Jean M. J. ^{[1
,2
,3
,4
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA

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

[4] King Abdullah Univ Sci & Technol KAUST, Thuwal 239556900, Saudi Arabia

来源：

ADVANCED MATERIALS | 2011年 / 23卷 / 45期

关键词：

self-assembly; pyrene; organic photovoltaics; donor-acceptor small molecules; FIELD-EFFECT TRANSISTORS; ORGANIC PHOTOVOLTAIC CELLS; OLIGOTHIOPHENE DERIVATIVES; DIKETOPYRROLOPYRROLE; DONOR; MOBILITY; WEIGHT; PERFORMANCE; MORPHOLOGY; COPOLYMER;

D O I：

10.1002/adma.201103177

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Efficient organic photovoltaic (OPV) materials are constructed by attaching completely planar, symmetric end-groups to donor-acceptor electroactive small molecules. Appending C2-pyrene as the small molecule end-group to a diketopyrrolopyrrole core leads to materials with a tight, aligned crystal packing and favorable morphology dictated by pi-pi interactions, resulting in high power conversion efficiencies and high fill factors. The use of end-groups to direct molecular self-assembly is an effective strategy for designing high-performance small molecule OPV devices.

引用

页码：5359 / +

页数：6

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