Kinetics of light induced defect creation in organic solar cells

Kinetics of light induced defect creation in organic solar cells

The kinetics of light-induced recombination centers in bulk heterojunction organic solar cells are measured as a function of exposure time, intensity, and the illumination photon energy. The density of induced centers increases with exposure but stabilizes partially due to self-annealing. UV exposur...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters Vol. 102; no. 4
Main Authors: Street, R. A., Davies, D. M.
Format: Journal Article
Language:English
Published: 28-01-2013
Subjects:
Defects
Density
Heterojunctions
Illumination
Photons
Photovoltaic cells
Solar cells
White light
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The kinetics of light-induced recombination centers in bulk heterojunction organic solar cells are measured as a function of exposure time, intensity, and the illumination photon energy. The density of induced centers increases with exposure but stabilizes partially due to self-annealing. UV exposure is roughly 50 times more effective for defect creation than white light or yellow-filtered white light. Light-induced breaking of C-H bonds to create H-related localized states is proposed as the underlying mechanism.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4789993