Herein, a novel photoelectrochemical heterostructure based on TiO nanotube layers uniformly coated by a CdS thin layer (using ALD) is presented. Downscaling the nanotube diameter (from 95 to 35 nm) resulted in a 2-fold enhancement of the UV and Vis light photocurrents. Further photocurrent improvement resulted from the prior annealing of the TiO nanotube layers from 300 to 600 °C.
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| http://dx.doi.org/10.1039/c7nr02841e | DOI Listing |
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