Fig. 2: Spectroscopic characterization and schematic energy band diagrams. | Nature Communications

Fig. 2: Spectroscopic characterization and schematic energy band diagrams.

From: Boosting photoelectrochemical efficiency by near-infrared-active lattice-matched morphological heterojunctions

Fig. 2: Spectroscopic characterization and schematic energy band diagrams.

a Tauc plots of BST-MHs, BST-NTs, and BST-NSs derived from UV-Vis diffuse reflectance spectra. b UPS spectra of BST-NTs, BST-NSs, and BST-MHs, showing their relative energies between valence band maximum and Fermi level. c Onset level (Eonset) of the UPS spectra for BST-MHs, BST-NTs, and BST-NSs, respectively. d Energy band diagrams of BST-NTs, BST-NSs, and BST-MHs. e Corresponding TA kinetics at B1 and B2 of BST-NTs, BST-NSs, and BST-MHs. The circles are experimental data and the solid lines are their exponential fits. f Schematic of charge-separation processes in BST-MHs under solar irradiation.

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