A solution-processable star-shaped molecule for high-performance organic solar cells via alkyl chain engineering and solvent additive

被引：57

作者：

Min, Jie ^{[1
]}

Luponosov, Yuriy N. ^{[3
]}

Ameri, Tayebeh ^{[1
]}

Elschner, Andreas ^{[4
]}

Peregudova, Svetlana M. ^{[5
]}

Baran, Derya ^{[1
]}

Heumueller, Thomas ^{[1
]}

Li, Ning ^{[1
]}

Machui, Florian ^{[1
]}

Ponomarenko, Sergei ^{[3
]}

Brabec, Christoph J. ^{[1
,2
]}

机构：

[1] Univ Erlangen Nurnberg, I MEET, D-91058 Erlangen, Germany

[2] Bavarian Ctr Appl Energy Res ZAE Bayern, D-91058 Erlangen, Germany

[3] Russian Acad Sci, Enikolopov Inst Synthet Polymer Mat, Moscow 117393, Russia

[4] Heraeus Precious Met GmbH & Co KG, Conduct Polymers Div Clevios, D-51368 Leverkusen, Germany

[5] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 119991, Russia

来源：

ORGANIC ELECTRONICS | 2013年 / 14卷 / 01期

关键词：

D-pi-A molecule; Highest occupied molecular energy level; Organic solar cells (OSCs); 4-Bromoanisole (BrAni); POWER CONVERSION EFFICIENCY; POLYMER PHOTOVOLTAIC CELLS; DONOR MATERIALS; OLIGOTHIOPHENES; RECOMBINATION; ACCEPTOR; CORE; BAND; ABSORPTION; MORPHOLOGY;

D O I：

10.1016/j.orgel.2012.11.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new star-shaped D-pi-A molecule, tris{4-[5 ''-(1,1-dicyanobut-1-en-2-yl)-2,2'-bithiophen-5-yl] phenyl} amine N(Ph-2T-DCN-Et)(3), with high efficiency potential for photovoltaic applications was synthesized. As compared to its analogue S(TPA-bT-DCN), it showed stronger absorption in the region of 350-450 nm and a lower lying highest occupied molecular energy level (HOMO). Solution-processed organic solar cells (OSCs) based on a blend of N(Ph-2T-DCN-Et)(3) and PC70BM resulted in a high PCE of 3.1% without any post-treatment. The PCE of N(Ph-2T-DCN-Et)(3) based solar cells was further improved to 3.6% under simulated AM 1.5 by addition of a new additive 4-bromoanisole (BrAni). (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：219 / 229

页数：11

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