Journal
OPTIK
Volume 127, Issue 19, Pages 7602-7610Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2016.05.134
Keywords
Dye sensitized solar cell; Counter electrode; Cobalt sulphide; Solution-processed
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Funding
- Ministry of Science and Technology of Taiwan [MOST 103-2221-E-024-019, 104-2221-E-024-022]
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In this study, a solution-derived cobalt sulfide (CoS) was utilized as counter electrode (CE) in dye sensitized solar cell (DSSC). It is show that high-quality CoS nanocrystals (10 similar to 500 nm) can be formed by post annealing process at temperatures above 500 degrees C. The deposited CoS nanocrystals effectively replace the commonly used platinum. Photovoltaic measurements revealed that the DSSCs assembled with the CoS CE showed excellent performance with open voltage of around 0.64V, short circuit current of 7.1 mA/cm(2) and power conversion efficiency of around 5%. (C) 2016 Elsevier GmbH. All rights reserved.
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