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A Physically Based Explicit J V Model of a Solar Cell for Simple Design Calculations

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2 Author(s)
Shreepad Karmalkar ; Indian Inst. of Technol. Madras, Chennai ; Saleem Haneefa

An accurate - equation of a practical solar cell is inherently implicit, which necessitates iterative calculations to determine the fill factor and the peak power point. We propose a simple explicit power-law J-V model that is applicable to a wide variety of solar cells. The model allows an easy prediction of the entire J-V curve, peak power point, and fill factor from four simple measurements of the bias points corresponding to , and, where is the open-circuit voltage and is the short-circuit current density. The model also provides a closed-form description of the J-V curve, peak power point, and fill factor in terms of physical parameters of the single exponential model.

Published in:

IEEE Electron Device Letters  (Volume:29 ,  Issue: 5 )