Enhancing fullerene-based solar cell lifetimes by addition of a fullerene dumbbell
File(s)
Author(s)
Type
Journal Article
Abstract
Cost-effective, solution-processable organic photovoltaics (OPV) present an interesting alternative to inorganic silicon-based solar cells. However, one of the major remaining challenges of OPV devices is their lack of long-term operational stability, especially at elevated temperatures. The synthesis of a fullerene dumbbell and its use as an additive in the active layer of a PCDTBT:PCBM-based OPV device is reported. The addition of only 20 % of this novel fullerene not only leads to improved device efficiencies, but more importantly also to a dramatic increase in morphological stability under simulated operating conditions. Dynamic secondary ion mass spectrometry (DSIMS) and TEM are used, amongst other techniques, to elucidate the origins of the improved morphological stability.
Date Issued
2014-09-26
Date Acceptance
2014-11-11
Citation
Angewandte Chemie-International Edition, 2014, 53 (47), pp.12870-12875
ISSN
1521-3773
Publisher
Wiley
Start Page
12870
End Page
12875
Journal / Book Title
Angewandte Chemie-International Edition
Volume
53
Issue
47
Copyright Statement
© 2014 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited
License URL
Subjects
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
fullerenes
lifetime
organic solar cells
photovoltaics
stability
ORGANIC PHOTOVOLTAICS
CONJUGATED POLYMERS
PERFORMANCE
EFFICIENT
BLENDS
TANDEM
DIMERS
POLY(3-HEXYLTHIOPHENE)
LIGHT
FILMS
Publication Status
Published