P3HT/PCBM bulk heterojunction solar cells: Relation between morphology and electro-optical characteristics

被引：339

作者：

Vanlaeke, P.

Swinnen, A.

Haeldermans, I.

Vanhoyland, G.

Aernouts, T.

Cheyns, D.

Deibel, C.

D'Haen, J.

Heremans, P.

Poortmans, J.

Manca, J. V.

机构：

[1] IMEC VZW, Div MCP, B-3001 Louvain, Belgium

[2] IMEC VZW, Div IMOMEC, B-3001 Louvain, Belgium

[3] Univ Hasselt, Inst Mat Onderezoek, B-3590 Diepenbeek, Belgium

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2006年 / 90卷 / 14期

关键词：

bulk heterojunction organic solar cells; polythiophene; morphology; crystallization; mobility;

D O I：

10.1016/j.solmat.2006.02.010

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The performance of organic solar cells based on the blend of regioregular poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) is strongly influenced by blend composition and thermal annealing conditions. X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM) diffraction measurements show that in the considered blends, ordering of P3HT plays a key role in understanding the PV-performance. It is demonstrated that the natural tendency of regioregular P3HT to crystallize is disturbed by the addition of PCBM. Annealing however improves the crystallinity, explaining the observed spectral broadening and is also resulting in a higher mobility of the holes in P3HT. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2150 / 2158

页数：9

共 25 条

[1] Soluble and processable regioregular poly(3-hexylthiophene) for thin film field-effect transistor applications with high mobility [J].