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. 2019 Dec 27;9:19846. doi: 10.1038/s41598-019-56338-6

Figure 6.

Figure 6

Variations of series resistance Rs, reverse saturation current J0, and built-in potential Vbi with respect to light intensity. (a) Values of Rs determined from the fitting of J-V characteristics showed reasonably good agreement with those from the fitting of EIS spectra in Fig. 2. Both sets of Rs values showed no significant dependence on light intensity. (b) Values of J0 determined from the fitting of J-V characteristics to the modified Shockley-equation approximation, and those of Vbi that were estimated by using J0 and n in Fig. 4(d).