Fig. 4: Opto-electronic properties of c-TiO2@a-TiO2-x(OH)y. | Nature Communications

Fig. 4: Opto-electronic properties of c-TiO2@a-TiO2-x(OH)y.

From: Engineered disorder in CO2 photocatalysis

Fig. 4

a UV–Vis-NIR diffuse reflectance spectra (DRS) of c-TiO2@a-TiO2-x(OH)y as a function of reduction degree. The x was quantified in each sample. b, c The total density of states (black line, right axis) and the corresponding values of the inverse participation ratio (IPR) (blue dots, left axis) for a-TiO2-x(OH)y (b) and crystalline TiO2-x (c) surfaces. d Schematic of charge carrier separation and transfer pathways in c-TiO2@a-TiO2-x(OH)y. The colors of arrows indicate the wavelength of incident light. e Time-resolved photoluminescence spectroscopy decay curves of c-TiO2 and c-TiO2@a-TiO2-x(OH)y.

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