4.4 Article

Shunt resistance and saturation current determination in CdTe and CIGS solar cells. Part 2: application to experimental IV measurements and comparison with other methods

Journal

SEMICONDUCTOR SCIENCE AND TECHNOLOGY
Volume 33, Issue 4, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1361-6641/aab018

Keywords

CdTe; CIGS; CdS; parameter extraction; saturation current; shunt resistance; Solar cell

Funding

  1. CeMIE-Sol [P25, P26]

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In this Part 2 of this series of articles, the procedure proposed in Part 1, namely a new parameter extraction technique of the shunt resistance (R-sh) and saturation current (I-sat) of a current-voltage (I-V) measurement of a solar cell, within the one-diode model, is applied to CdS-CdTe and CIGS-CdS solar cells. First, the Cheung method is used to obtain the series resistance (R-s) and the ideality factor n. Afterwards, procedures A and B proposed in Part 1 are used to obtain R-sh and I-sat. The procedure is compared with two other commonly used procedures. Better accuracy on the simulated I-V curves used with the parameters extracted by our method is obtained. Also, the integral percentage errors from the simulated I-V curves using the method proposed in this study are one order of magnitude smaller compared with the integral percentage errors using the other two methods.

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