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Figure 2 | Nanoscale Research Letters

Figure 2

From: A composite CdS thin film/TiO2 nanotube structure by ultrafast successive electrochemical deposition toward photovoltaic application

Figure 2

CdS deposition under different applied voltages. (a-f) Samples under different types of voltage: (a) (b) constant voltage, -5.0 V, SEM (top view) and TEM (lateral). (c) (d) impulse voltage, -5.0 V, 0.25 Hz, SEM (top view) and TEM (lateral). (e) (f) AC voltage, ±5.0 V, 0.25 Hz, SEM (top view) and TEM (lateral). (g) The content and ratio of Cd and S versus different voltages, with a growth time of 1 h.

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