https://scholars.lib.ntu.edu.tw/handle/123456789/444885
Title: | Fundamental parameters extraction from dark I-V characteristics: A comprehensive study on amorphous/crystalline silicon hetero-junction solar cell | Authors: | Wu, D.-C. Shiao, J.-C. Lin, C.-H. Chen, C.-H. Liao, C.-H. Hsu, W.-C. Lu, W.-H. Lan, C.-W. CHUNG-WEN LAN |
Issue Date: | 2010 | Start page/Pages: | 2751-2755 | Source: | Conference Record of the IEEE Photovoltaic Specialists Conference | Abstract: | Dark current-voltage (I-V) curves are usually used to analyze the electric characteristics of solar cell device based on one-diode and two-diode equivalent circuit models. In this study, we extracted the parameters from dark I-V with Neider-Mead algorithm and repeated error estimation method based on two-diode circuit model. If we give one set of initial values of the parameters into the Neider-Mead algorithm, such evaluation method will show us one set of reasonable fitting results. Therefore, we will get the best fitting results after a series of set initial values evaluation based on our repeated algorithm process. The final fitting results showed that trends of F.F. were fully influenced by series resistances. With thicker p-layer, they demonstrated larger ideality factors and less short-circuit current densities. Short-circuit current densities show the opposite trend with respect to ideality factors in p-layer solar cell. However, the insertion of intrinsic thin-layer between p-layer and n-type c-Si can reduce the ideality factor. We found the calculated VOC extracted from the dark I-V was consistent to the measured VOC from standard solar simulator. The insertion of i-layer greatly reduced the J01 and hence enhanced the VOC. © 2010 IEEE. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/444885 | DOI: | 10.1109/PVSC.2010.5616817 | SDG/Keyword: | Comprehensive studies; Dark current-voltage; Diode circuits; Electric characteristics; Equivalent circuit model; Error estimations; Evaluation Method; Fitting results; Fundamental parameters; I-layer; Ideality factors; Initial values; IV characteristics; P-layer; Series resistances; Solar simulator; Thin layers; Algorithms; Circuit theory; Diodes; Parameter estimation; Photovoltaic effects; Solar cells; Switching circuits; Current voltage characteristics |
Appears in Collections: | 化學工程學系 |
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