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Issue 38, 2012

Structure–photovoltaic performance relationships for DSSC sensitizers having heterocyclic and benzene spacers

Author affiliations

Abstract

Five new sensitizers based on different spacer groups were designed and synthesized in order to facilitate investigation of the effects of heterocyclic spacers on photovoltaic parameters in DSSCs. It was found that generic issues arising from the electronic nature of heterocyclic units affected voltage parameters, with DP-P giving the highest voltage. On the other hand, higher electron transfer yield across a wide range of the solar spectrum played an important role in enhanced current densities. Best performance was achieved by the thiophene based sensitizer DP-T, resulting in an efficiency of 3.5% with Jsc = 8.19 mA cm−2, Voc = 0.618 V, ff = 0.697.

Graphical abstract: Structure–photovoltaic performance relationships for DSSC sensitizers having heterocyclic and benzene spacers

Supplementary files

Article information


Submitted
21 May 2012
Accepted
14 Aug 2012
First published
15 Aug 2012

J. Mater. Chem., 2012,22, 20403-20409
Article type
Paper

Structure–photovoltaic performance relationships for DSSC sensitizers having heterocyclic and benzene spacers

B. H. Kim and H. S. Freeman, J. Mater. Chem., 2012, 22, 20403 DOI: 10.1039/C2JM33228K

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