Direct light-induced polymerization of cobalt-based redox shuttles: an ultrafast way towards stable dye-sensitized solar cells

The photopolymerization of Co(II)/Co(III) complexes for dye-sensitized solar cells (DSSCs) by means of a fast, inexpensive, in situ and inhibition-free process has been examined. We have succeeded in fabricating high-performance DSSCs able to retain a light-to-electricity power conversion efficiency...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2015-01, Vol.51 (91), p.16308-16311
Main Authors: Bella, Federico, Vlachopoulos, Nikolaos, Nonomura, Kazuteru, Zakeeruddin, Shaik Mohammed, Grätzel, Michael, Gerbaldi, Claudio, Hagfeldt, Anders
Format: Article
Language:English
Subjects:
Dyes
Energy conversion efficiency
Luminous intensity
Photopolymerization
Photovoltaic cells
Polymerization
Solar cells
Stabilization
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Summary:The photopolymerization of Co(II)/Co(III) complexes for dye-sensitized solar cells (DSSCs) by means of a fast, inexpensive, in situ and inhibition-free process has been examined. We have succeeded in fabricating high-performance DSSCs able to retain a light-to-electricity power conversion efficiency exceeding 6.5% (8.5% at low intensity) after 1800 h of mixed (light on/off, temperature high/low) accelerated aging tests, thus revealing a possible way for the stabilization of these record-holding redox pairs.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc05533d