Journal
MEASUREMENT
Volume 44, Issue 9, Pages 1551-1555Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2011.06.003
Keywords
Dye-sensitized solar cell; Equivalent circuit; Current voltage characteristic; Capacitance characteristic
Funding
- National Natural Science Foundation of China [10874077]
- National Basic Research Program of China [2007CB613301, 2011CB933303]
- Jiangsu Provincial High Technology Research Program [BE2009140]
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The quantitative analysis, which based on equivalent circuits and parameter estimating, approved the capacitance characteristic of DSSCs caused the fluctuation of the measured efficiency. The equivalent circuit parameter was estimated from a typical dye solar cell, which was characterized with the crystalline ingredient, particle size and I-V curve. Quantitative analysis and corresponding formula expression between the capacitance and the measured I-V curve is given, and a proper range of scan speed for accurate measuring the efficiency of DSSC is suggested. It is found the traditional I-V measurement method is limited in the measurement of dye-sensitized solar cells (DSSCs). Experiments showed that, the scan speed in this method influences the measured DSSCs' efficiency value greatly, while none such impact was found in that of Si cell. (C) 2011 Elsevier Ltd. All rights reserved.
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