In:
Scientific Reports, Springer Science and Business Media LLC, Vol. 7, No. 1 ( 2017-07-13)
Abstract:
Nanoporous anatase TiO 2 films were fabricated by a screen-printing method, and Cu x O quantum dots (QDs) were deposited on the TiO 2 films through successive ionic layer adsorption and reaction (SILAR). The amount of Cu x O QDs on the TiO 2 films are controlled by changing the number of SILAR cycles. The morphology, microstructure, optical, and photoelectrochemical properties of different Cu x O sensitized TiO 2 films (Cu x O/TiO 2 ) were investigated in detail. The nanoporous TiO 2 film offers a large surface area for anchoring QDs. QD deposited samples exhibited a significant improvement in photoelectrochemical performance than the bare of TiO 2 . Cu x O/TiO 2 , prepared with 7 SILAR cycles, showed the best photoelectrochemical properties, where the photocurrent density was enhanced to 500.01 μA/cm 2 compared with 168.88 μA/cm 2 of bare TiO 2 under visible light. These results indicate that the designed Cu x O/TiO 2 structure possesses superior charge separation efficiency and photoelectrochemical properties.
Type of Medium:
Online Resource
ISSN:
2045-2322
DOI:
10.1038/s41598-017-05645-x
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2017
detail.hit.zdb_id:
2615211-3
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