Fig. 1: Energy band structure of Cs2SnI6 and its stability in aqueous HI solution system. | Nature Communications

Fig. 1: Energy band structure of Cs2SnI6 and its stability in aqueous HI solution system.

From: Single-atom Pt-I3 sites on all-inorganic Cs2SnI6 perovskite for efficient photocatalytic hydrogen production

Fig. 1

a Schematic diagram of preparation process for the PtSA/Cs2SnI6 catalyst. b SEM image and c PXRD pattern of Cs2SnI6. d Solubility of Cs2SnI6 in aqueous HI solution at different temperature. The inset shows the photograph of the 6 M HI aqueous solution with and without Cs2SnI6 powder at 25 °C. e PXRD patterns of precipitates for Cs2SnI6 powder in aqueous HI solution with various concentrations. f UV–visible absorption spectrum of Cs2SnI6 powder. The inset is the photograph of the Cs2SnI6. g Schematic energy band diagram of the Cs2SnI6, charge generation and charge transfer process over the Cs2SnI6 under visible-light irradiation.

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