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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 7, Iss. 10 — Oct. 1, 2009
  • pp: 953–955

Enhanced ultraviolet emission from ZnO thin film covered by TiO2 nanoparticles

Linhua Xu, Hua Shen, Xiangyin Li, and Rihong Zhu  »View Author Affiliations

Chinese Optics Letters, Vol. 7, Issue 10, pp. 953-955 (2009)

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A ZnO thin film covered by TiO2 nanoparticles is prepared by electron beam evaporation. The structure and surface morphology of the sample are analyzed by X-ray diffraction (XRD) and atomic force microscopy (AFM), respectively. Photoluminescence is used to investigate the fluorescent property of the ample. The results show that the ultraviolet (UV) emission of the ZnO thin film is greatly enhanced after it is covered by TiO2 nanoparticles while the green emission is suppressed. The enhanced UV emission mainly results from the fluorescence resonance energy transfer (FRET) between ZnO thin film and TiO2 nanoparticles. This TiO2-ZnO composite thin film can be used to fabricate high-efficiency UV emitters.

© 2009 Chinese Optics Letters

OCIS Codes
(250.5230) Optoelectronics : Photoluminescence
(260.5740) Physical optics : Resonance
(240.6675) Optics at surfaces : Surface photoemission and photoelectron spectroscopy

Linhua Xu, Hua Shen, Xiangyin Li, and Rihong Zhu, "Enhanced ultraviolet emission from ZnO thin film covered by TiO2 nanoparticles," Chin. Opt. Lett. 7, 953-955 (2009)

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