Fig. 2: Ohmic contact and surface morphology changes of Ag/In2S3. | Nature Communications

Fig. 2: Ohmic contact and surface morphology changes of Ag/In2S3.

From: Semi-transparent and stable In2S3/CdTe heterojunction photoanodes for unbiased photoelectrochemical water splitting

Fig. 2

a J–V curves of FTO/Ag/Ag:In2S3/In2S3 and FTO/In2S3 devices. b Nyquist plots of Ag/Ag:In2S3/In2S3 and In2S3 devices (inset: the equivalent circuit). c Analysis of ohmic contacts in FTO/In2S3/Au and FTO/Ag/Ag:In2S3/In2S3/Au devices. d Comparing the transmission spectra of unannealed FTO/Ag and annealed FTO/Ag (300 °C). e Comparing the transmission spectra of unannealed FTO/Ag/In2S3 and annealed FTO/Ag/In2S3 (300 °C). f Corresponding charging current density difference as a function of scan rates for FTO/Ag and FTO/Ag (anneal). The cross-sectional SEM images of g FTO/In2S3 (300 °C). h FTO/Ag/In2S3 (300 °C). i FTO/Ag/In2S3 (300 °C)/CdTe (300 °C). The experiments are conducted without iR compensation. Source data are provided in the Source Data file.

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