Effect of the molecular weight of poly(3-hexylthiophene) on the morphology and performance of polymer bulk heterojunction solar cells

被引：216

作者：

Ma, Wanli ^{[1
]}

Kim, Jin Young ^{[1
]}

Lee, Kwanghee ^{[1
]}

Heeger, Alan J. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2007年 / 28卷 / 17期

关键词：

conducting polymers; morphology; poly(3-hexylthiophene); solar cells;

D O I：

10.1002/marc.200700280

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The morphology and performance of bulk heterojunction solar cells comprised of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C(61)butyric acid methyl ester (PCBM) have been investigated using P3HT with different molecular weights (MWs). It is concluded that the optimum annealing temperature for the bulk heterojunction material is related to the MW of P3HT. The best performance is obtained by using P3HT with an optimum ratio between high MW and low MW components. The corresponding 'ideal morphology' is comprised of highly ordered crystalline regions formed by low MW P3HT embedded and interconnected by a high MW P3HT matrix.

引用

页码：1776 / 1780

页数：5

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