Effect of Ag thin films on the photoluminescence of ZnO films

Feng Han, Shuming Yang, Weixuan Jing, Liangjun Wang, Lei Li, Zhuangde Jiang, Feng Gao

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The Ag-coated ZnO films were deposited on glass substrates using magnetron sputtering technique. Atomic Force Microscopy was employed to characterize the surface and the profile roughness of Ag-coated ZnO films. X-ray diffraction and X-ray photoelectron were used respectively to analyze the crystalline and chemical state of survey samples. The influence of capping Ag on the photoluminescence intensities of ZnO films has been investigated. The photoluminescence spectra were found to change as the deposited Ag varied with different deposition times and annealing temperatures. Relationships between the fabrication, characterization and performance of Ag-coated ZnO films are established. The results indicate that the diffusion of Ag into ZnO films and the upward bending of the energy band near the interface of ZnO/Ag led to the decrease of ultraviolet intensities of Ag-coated ZnO films. Due to the density of surface states on the bending of energy band, it is crucial to control the surface morphology of metal/ZnO for the enhancement of light emission.

LanguageEnglish
Pages3796-3801
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume15
Issue number5
DOIs
Publication statusPublished - 1 May 2015

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Atomic Force Microscopy
X-Ray Diffraction
Glass
Photoluminescence
Metals
X-Rays
photoluminescence
Light
Thin films
Temperature
thin films
Band structure
energy bands
Light emission
Surface states
Photoelectrons
Magnetron sputtering
Surface morphology
light emission
Surveys and Questionnaires

Cite this

Han, Feng ; Yang, Shuming ; Jing, Weixuan ; Wang, Liangjun ; Li, Lei ; Jiang, Zhuangde ; Gao, Feng. / Effect of Ag thin films on the photoluminescence of ZnO films. In: Journal of Nanoscience and Nanotechnology. 2015 ; Vol. 15, No. 5. pp. 3796-3801.
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abstract = "The Ag-coated ZnO films were deposited on glass substrates using magnetron sputtering technique. Atomic Force Microscopy was employed to characterize the surface and the profile roughness of Ag-coated ZnO films. X-ray diffraction and X-ray photoelectron were used respectively to analyze the crystalline and chemical state of survey samples. The influence of capping Ag on the photoluminescence intensities of ZnO films has been investigated. The photoluminescence spectra were found to change as the deposited Ag varied with different deposition times and annealing temperatures. Relationships between the fabrication, characterization and performance of Ag-coated ZnO films are established. The results indicate that the diffusion of Ag into ZnO films and the upward bending of the energy band near the interface of ZnO/Ag led to the decrease of ultraviolet intensities of Ag-coated ZnO films. Due to the density of surface states on the bending of energy band, it is crucial to control the surface morphology of metal/ZnO for the enhancement of light emission.",
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Effect of Ag thin films on the photoluminescence of ZnO films. / Han, Feng; Yang, Shuming; Jing, Weixuan; Wang, Liangjun; Li, Lei; Jiang, Zhuangde; Gao, Feng.

In: Journal of Nanoscience and Nanotechnology, Vol. 15, No. 5, 01.05.2015, p. 3796-3801.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of Ag thin films on the photoluminescence of ZnO films

AU - Han, Feng

AU - Yang, Shuming

AU - Jing, Weixuan

AU - Wang, Liangjun

AU - Li, Lei

AU - Jiang, Zhuangde

AU - Gao, Feng

PY - 2015/5/1

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AB - The Ag-coated ZnO films were deposited on glass substrates using magnetron sputtering technique. Atomic Force Microscopy was employed to characterize the surface and the profile roughness of Ag-coated ZnO films. X-ray diffraction and X-ray photoelectron were used respectively to analyze the crystalline and chemical state of survey samples. The influence of capping Ag on the photoluminescence intensities of ZnO films has been investigated. The photoluminescence spectra were found to change as the deposited Ag varied with different deposition times and annealing temperatures. Relationships between the fabrication, characterization and performance of Ag-coated ZnO films are established. The results indicate that the diffusion of Ag into ZnO films and the upward bending of the energy band near the interface of ZnO/Ag led to the decrease of ultraviolet intensities of Ag-coated ZnO films. Due to the density of surface states on the bending of energy band, it is crucial to control the surface morphology of metal/ZnO for the enhancement of light emission.

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