Reversible degradation in ITO-containing organic photovoltaics under concentrated sunlight
Journal
Physical Chemistry Chemical Physics
Journal Volume
17
Journal Issue
5
Pages
3891-3897
Date Issued
2015
Author(s)
Abstract
Stabilities of ITO-containing and ITO-free organic solar cells were investigated under simulated AM 1.5G illumination and under concentrated natural sunlight. In both cases ITO-free devices exhibit high stability, while devices containing ITO show degradation of their photovoltaic performance. The accelerated degradation under concentrated sunlight (of up to 20 suns) in ITO-containing devices was found to be reversible. Dark exposure of degraded samples can partly restore performance. A possible underlying mechanism for such a phenomenon is discussed.
SDGs
Publisher
Royal Society of Chemistry
Type
journal article