Fig. 3: The optoelectronic properties of CsSnI3-SnCl2 film before and after moisture treatment. | Nature Communications

Fig. 3: The optoelectronic properties of CsSnI3-SnCl2 film before and after moisture treatment.

From: Targeted elimination of tetravalent-Sn-induced defects for enhanced efficiency and stability in lead-free NIR-II perovskite LEDs

Fig. 3: The optoelectronic properties of CsSnI3-SnCl2 film before and after moisture treatment.The alternative text for this image may have been generated using AI.

a, b Kelvin probe force microscopy images. Scale bar, 1 μm. c Photoluminescence spectra. d, e Photoluminescence spectra under continuous UV excitation. f Dark J–V curves of the electron-only devices with a structure of ITO/ SnO2/ Perovskite/ SPPO13/ B3PYMPM/ LiF/ Al.

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