Oxygen release and exchange in niobium oxide MEHPPV hybrid solar cells

被引：110

作者：

Lira-Cantu, Monica ^{[1
]}

Norrman, Kion ^{[1
]}

Andreasen, Jens W. ^{[1
]}

Krebs, Frederik C. ^{[1
]}

机构：

[1] Riso Natl Lab, Danish Polymer Ctr, DK-4000 Roskilde, Denmark

来源：

CHEMISTRY OF MATERIALS | 2006年 / 18卷 / 24期

关键词：

D O I：

10.1021/cm061429d

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 demonstrate that niobium oxide exchanges oxygen with the atmosphere when illuminated by simulated sunlight. The oxygen exchange was found to take place for pristine niobium oxide films when illuminated in an oxygen atmosphere and when illuminated in an operational hybrid solar cell. The oxygen exchange was demonstrated using O-18(2)-isotopic labeling in combination with time-of-flight secondary ion mass spectrometry (TOF-SIMS) imaging analysis of devices and oxide substrates. TOF-SIMS depth profiling confirmed O-18 incorporation throughout the device in hybrid solar cells. The results are discussed in the context of hybrid solar cell stability and illuminate one of the degradation paths.

引用

页码：5684 / 5690

页数：7