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Title: CdS sensitized 3D hierarchical TiO2/ZnO heterostructure for efficient solar energy conversion
Authors: Zheng, Zhaoke
Xie, Wen
Lim, Zhi Shiuh
You, Lu
Wang, Junling
Keywords: DRNTU::Engineering::Materials::Microelectronics and semiconductor materials
Issue Date: 2014
Source: Zheng, Z., Xie, W., Lim, Z. S., You, L., & Wang, J. (2014). CdS sensitized 3D hierarchical TiO2/ZnO heterostructure for efficient solar energy conversion. Scientific Reports, 4.
Series/Report no.: Scientific reports
Abstract: For conventional dye or quantum dot sensitized solar cells, which are fabricated using mesoporous films, the inefficient electron transport due to defects such as grain boundaries and surface traps is a major drawback. To simultaneously increase the carrier transport efficiency as well as the surface area, optimal-assembling of hierarchical nanostructures is an attractive approach. Here, a three dimensional (3D) hierarchical heterostructure, consisting of CdS sensitized one dimensional (1D) ZnO nanorods deposited on two dimensional (2D) TiO2 (001) nanosheet, is prepared via a solution-process method. Such heterstructure exhibits significantly enhanced photoelectric and photocatalytic H2 evolution performance compared with CdS sensitized 1D ZnO nanorods/1D TiO2 nanorods photoanode, as a result of the more efficient light harvesting over the entire visible light spectrum and the effective electron transport through a highly connected 3D network.
ISSN: 2045-2322
DOI: 10.1038/srep05721
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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