Comparative studies of photochemical cross-linking methods for stabilizing the bulk hetero-junction morphology in polymer solar cells

被引：51

作者：

Carle, Jon Eggert ^{[1
]}

Andreasen, Birgitta ^{[1
]}

Tromholt, Thomas ^{[1
]}

Madsen, Morten V. ^{[1
]}

Norrman, Kion ^{[1
]}

Jorgensen, Mikkel ^{[1
]}

Krebs, Frederik C. ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde, Denmark

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 46期

基金：

新加坡国家研究基金会;

关键词：

PERFORMANCE; COPOLYMER; POLYTHIOPHENES; EFFICIENT; BLENDS; FILMS;

D O I：

10.1039/c2jm34284g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We are here presenting a comparative study between four different types of functionalities for cross-linking. With relatively simple means bromine, azide, vinyl and oxetane could be incorporated into the side chains of the low band-gap polymer TQ1. Cross-linking of the polymers was achieved by UV-light illumination to give solvent resistant films and reduced phase separation and growth of PCBM crystallites in polymer:PCBM films. The stability of solar cells based on the cross-linked polymers was tested under various conditions. This study showed that cross-linking can improve morphological stability but that it has little influence on the photochemical stability which is also decisive for stable device operation under constant illumination conditions.

引用

页码：24417 / 24423

页数：7

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