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Fig. 5 | Nanoscale Research Letters

Fig. 5

From: Ag2S/CdS/TiO2 Nanotube Array Films with High Photocurrent Density by Spotting Sample Method

Fig. 5

a The S, C, Ag, Cd, Ti, and O elements can be found in the survey spectrum. b The high-resolution Ti2p XPS spectrum has two peaks at 464.8 and 458.9 eV. c Two characteristic peaks are observed at 405.2 (Cd3d5/2)  and 412.0 eV (Cd3d3/2). d The Ag3d core level could be satisfactorily fit to single spin-orbit pair at 368.4 eV (Ag3d5/2) and at 374.4 eV (Ag3d3/2). e The high-resolution XPS spectrum of S2p

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