Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 279, Issue -, Pages 47-51Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2014.01.009
Keywords
Dye-sensitized solar cells; Counter electrode; PEDOT-PSS; MoS2
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Funding
- National Natural Science Foundation of China [91333122, 51372082, 51172069, 50972032, 61204064, 51202067]
- Fundamental Research Funds for the Central Universities of China [1132012146]
- Ph.D. Programs Foundation of Ministry of Education of China [20110036110006, 20120036120006, 20130036110012]
- Fundamental Research Funds for the Central Universities [11ZG02]
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A novel MoS2/PEDOT-PSS counter electrode (CE) is proposed and used for dye sensitized solar cells (DSCs). The MoS2/PEDOT-PSS composites were facilely obtained from the mechanical mixture of hydrothermal synthesized MoS2 nanomaterial and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) aqueous solution, and the composites are compatible to low temperature and cost-effective screen-printing fabrication technique. DSC with MoS2/PEDOT-PSS CE exhibits comparable power conversion efficiency and fill factor to the DSC with conventional Pt CE. The good photovoltaic performance of DSC using MoS2/PEDOT-PSS CE is primarily derived from the high electrocatalytic activity of nanosized MoS2 and the high conductive feature of PEDOT-PSS. These results reveal the potential application of MoS2/PEDOT-PSS composite in the use of low-cost, printable and efficient Pt-free CEs. (C) 2014 Elsevier B.V. All rights reserved.
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