Fabrication and correlation between photoluminescence and photoelectrochemical properties of vertically aligned ZnO coated TiO2 nanotube arrays

Hua Cai; Qinghu You; Zhigao Hu; Zhihua Duan; Yong Cui; Jian Sun; Ning Xu; Jiada Wu

doi:10.1016/j.solmat.2014.01.033

Fabrication and correlation between photoluminescence and photoelectrochemical properties of vertically aligned ZnO coated TiO₂ nanotube arrays

Hua Cai
, Qinghu You
, Zhigao Hu
, Zhihua Duan
, Yong Cui
, Jian Sun
, Ning Xu
, Jiada Wu^*

^*Corresponding author for this work

School of Physics and Electronic Science

Fudan University
East China Normal University
Shanghai Institute of Laser and Plasma

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

We report on a study on the correlation between the photoluminescence and the photoelectrochemical properties of ZnO-TiO₂ heterogeneous nanostructure composed of anatase TiO₂ nanotubes and wurtzite ZnO coatings. Vertically aligned ZnO coated TiO₂ nanotube (ZnO/TiO ₂ NT) arrays have been fabricated by atomic layer deposition of ZnO coatings on electrochemical anodization formed TiO₂ nanotubes. The obtained ZnO/TiO₂ NT arrays show higher photoresponse to shorter wavelength light than to longer wavelength light. A reduction in photoluminescence and an enhancement in photoelectrochemical activity are observed for annealed ZnO/TiO₂ NT arrays. ZnO/TiO₂ NTs with thinner ZnO coatings rather than thicker ZnO coatings have better photoelectrochemical properties. Compared with bare TiO₂ NT arrays, an increase in photocurrent of about 50 percent is obtained for the arrays of 450 C annealed of ZnO/TiO₂ NTs with 10-cycle deposition of ZnO coatings under visible illumination with cutoff of 420 nm.

Original language	English
Pages (from-to)	233-238
Number of pages	6
Journal	Solar Energy Materials and Solar Cells
Volume	123
DOIs	https://doi.org/10.1016/j.solmat.2014.01.033
State	Published - Apr 2014

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Heterogeneous nanostructure
Photoelectrochemical property
Photoluminescence
Titania nanotube
Zinc oxide coating

Access to Document

10.1016/j.solmat.2014.01.033

Cite this

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title = "Fabrication and correlation between photoluminescence and photoelectrochemical properties of vertically aligned ZnO coated TiO2 nanotube arrays",

abstract = "We report on a study on the correlation between the photoluminescence and the photoelectrochemical properties of ZnO-TiO2 heterogeneous nanostructure composed of anatase TiO2 nanotubes and wurtzite ZnO coatings. Vertically aligned ZnO coated TiO2 nanotube (ZnO/TiO 2 NT) arrays have been fabricated by atomic layer deposition of ZnO coatings on electrochemical anodization formed TiO2 nanotubes. The obtained ZnO/TiO2 NT arrays show higher photoresponse to shorter wavelength light than to longer wavelength light. A reduction in photoluminescence and an enhancement in photoelectrochemical activity are observed for annealed ZnO/TiO2 NT arrays. ZnO/TiO2 NTs with thinner ZnO coatings rather than thicker ZnO coatings have better photoelectrochemical properties. Compared with bare TiO2 NT arrays, an increase in photocurrent of about 50 percent is obtained for the arrays of 450 C annealed of ZnO/TiO2 NTs with 10-cycle deposition of ZnO coatings under visible illumination with cutoff of 420 nm.",

keywords = "Heterogeneous nanostructure, Photoelectrochemical property, Photoluminescence, Titania nanotube, Zinc oxide coating",

author = "Hua Cai and Qinghu You and Zhigao Hu and Zhihua Duan and Yong Cui and Jian Sun and Ning Xu and Jiada Wu",

year = "2014",

month = apr,

doi = "10.1016/j.solmat.2014.01.033",

language = "英语",

volume = "123",

pages = "233--238",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Fabrication and correlation between photoluminescence and photoelectrochemical properties of vertically aligned ZnO coated TiO2 nanotube arrays

AU - Cai, Hua

AU - You, Qinghu

AU - Hu, Zhigao

AU - Duan, Zhihua

AU - Cui, Yong

AU - Sun, Jian

AU - Xu, Ning

AU - Wu, Jiada

PY - 2014/4

Y1 - 2014/4

N2 - We report on a study on the correlation between the photoluminescence and the photoelectrochemical properties of ZnO-TiO2 heterogeneous nanostructure composed of anatase TiO2 nanotubes and wurtzite ZnO coatings. Vertically aligned ZnO coated TiO2 nanotube (ZnO/TiO 2 NT) arrays have been fabricated by atomic layer deposition of ZnO coatings on electrochemical anodization formed TiO2 nanotubes. The obtained ZnO/TiO2 NT arrays show higher photoresponse to shorter wavelength light than to longer wavelength light. A reduction in photoluminescence and an enhancement in photoelectrochemical activity are observed for annealed ZnO/TiO2 NT arrays. ZnO/TiO2 NTs with thinner ZnO coatings rather than thicker ZnO coatings have better photoelectrochemical properties. Compared with bare TiO2 NT arrays, an increase in photocurrent of about 50 percent is obtained for the arrays of 450 C annealed of ZnO/TiO2 NTs with 10-cycle deposition of ZnO coatings under visible illumination with cutoff of 420 nm.

AB - We report on a study on the correlation between the photoluminescence and the photoelectrochemical properties of ZnO-TiO2 heterogeneous nanostructure composed of anatase TiO2 nanotubes and wurtzite ZnO coatings. Vertically aligned ZnO coated TiO2 nanotube (ZnO/TiO 2 NT) arrays have been fabricated by atomic layer deposition of ZnO coatings on electrochemical anodization formed TiO2 nanotubes. The obtained ZnO/TiO2 NT arrays show higher photoresponse to shorter wavelength light than to longer wavelength light. A reduction in photoluminescence and an enhancement in photoelectrochemical activity are observed for annealed ZnO/TiO2 NT arrays. ZnO/TiO2 NTs with thinner ZnO coatings rather than thicker ZnO coatings have better photoelectrochemical properties. Compared with bare TiO2 NT arrays, an increase in photocurrent of about 50 percent is obtained for the arrays of 450 C annealed of ZnO/TiO2 NTs with 10-cycle deposition of ZnO coatings under visible illumination with cutoff of 420 nm.

KW - Heterogeneous nanostructure

KW - Photoelectrochemical property

KW - Photoluminescence

KW - Titania nanotube

KW - Zinc oxide coating

UR - https://www.scopus.com/pages/publications/84893528063

U2 - 10.1016/j.solmat.2014.01.033

DO - 10.1016/j.solmat.2014.01.033

M3 - 文章

AN - SCOPUS:84893528063

SN - 0927-0248

VL - 123

SP - 233

EP - 238

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -