Effect of P3HT:PCBM concentration in solvent on performances of organic solar cells

被引：123

作者：

Baek, Woon-Hyuk ^{[1
]}

Yang, Hyun ^{[1
]}

Yoon, Tae-Sik ^{[1
]}

Kang, C. J. ^{[1
,2
]}

Lee, Hyun Ho ^{[3
]}

Kim, Yong-Sang ^{[1
,4
]}

机构：

[1] Myongji Univ, Dept Nano Sci & Engn, Gyeonggi 449728, South Korea

[2] Myongji Univ, Dept Phys, Gyeonggi 449728, South Korea

[3] Myongji Univ, Dept Chem Engn, Gyeonggi 449728, South Korea

[4] Myongji Univ, Dept Elect Engn, Gyeonggi 449728, South Korea

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2009年 / 93卷 / 08期

关键词：

Crystallinity; Morphology; Phase separation; Absorption; Organic solar cells; LARGE-AREA; CONJUGATED POLYMER; CHARGE-TRANSPORT; MOLECULAR-WEIGHT; MORPHOLOGY; POLY(3-HEXYLTHIOPHENE); PHOTOVOLTAICS; MOBILITY;

D O I：

10.1016/j.solmat.2009.01.019

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：

Focused on phase separation and morphologies of poly(3-hexylthiophene):[6,6]-phenyl C-61 butyric acid methyl ester (P3HT:PCBM) active layers, we studied the effect of preparation conditions of the active layer on photovoltaic performance by changing concentration of P3HT:PCBM in the solvent. The performances of the cells varied depending on concentration of P3HT:PCBM (1:1 ratio by weight) in solvent even with the same thickness. The P3HT:PCBM active layer is prepared in cell structure of ITO/PEDOT/P3HT:PCBM/Al by changing spin-coating speed with different concentrations (1, 2 and 3 wt%) in chlorobenzene. Here, it was found that both the P3HT:PCBM concentrations and spin-coating conditions affected the crystalline structure formation, interchain interaction, morphology and phase separation during drying process of solvent and subsequent annealing. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1263 / 1267

页数：5

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