Chinese Optics Letters, 2009, 7 (10): 953, Published Online: Oct. 16, 2009  

Enhanced ultraviolet emission from ZnO thin film covered by TiO2 nanoparticles Download: 551次

Author Affiliations
1 Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
2 Institute of Electronic Engineering and Photo-Electric Technology, Nanjing University of Science and Technology, Nanjing 210094, China
Abstract
A ZnO thin film covered by TiO<sub>2</sub> 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 TiO<sub>2</sub> 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 TiO<sub>2</sub> nanoparticles. This TiO<sub>2</sub>-ZnO composite thin film can be used to fabricate high-efficiency UV emitters.

Linhua Xu, Hua Shen, Xiangyin Li, Rihong Zhu. Enhanced ultraviolet emission from ZnO thin film covered by TiO2 nanoparticles[J]. Chinese Optics Letters, 2009, 7(10): 953.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!