Two-Step Precise Determination of the Parameters of the Single-Diode Equivalent Circuit Model for Dye-Sensitized Solar Cells |
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| Authors: | Lei Wang Xiaoming Fang Zhengguo Zhang |
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| Affiliation: | Key Lab of Heat Transfer and Energy Conservation of Ministry of Education, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , China |
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| Abstract: | In this work, a two-step method to determine all the five parameters of the single-diode equivalent circuit model for dye-sensitized solar cells with high accuracy is demonstrated. With the five parameters extracted by the graphic method as the initial values, the accurate values of the five parameters are obtained by nonlinear least squares fitting. The accuracy of the two-step method is validated by fitting several I-V characteristics of dye-sensitized solar cells both from our experimental results and from other research groups. The root mean square errors of all the fitting results by the two-step method are less than 1%. |
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