Photoluminescence of One Dimension ZnO Single Crystal Columns Array Excited by Different Space Variation Direction
XIE Ping-bo1, 2, ZHAO Fu-li2, LI Ya-dong3, GONG Zhen2, WANG He-zhou2
1. Division of Power and Particle Technology, Institute of Material Science and Engineering, South China University of Technology, Guangzhou 510640, China 2. State Key Laboratory of Optoelectron Materials and Technology, Sun Yatsun University，Guangzhou 510275, China 3. Department of Chemistry, School of Sciences, Tsinghua University, Beijing 100084, China
Abstract：Highly-oriented single crystal ZnO columns array was prepared by a simple two-step evaporation oxidation method. And the photoluminescence properties of different direction excitation were investigated. Upon different direction excitation, the emission spectra were greatly different. Besides the relative intensity of different emission peak of PL changed; some new emission peaks were also detected at high excitation power. This showed that the energy absorption, transmission and emission in one dimension ZnO column array were directional. The up-conversion polarized photoluminescence spectra were also found, and the intensities of 400 nm emission peak were affected by the laser polarization orientation. These results showed that the intensity and shape of PL were related with the direction and polarization of the excitation laser. The results also give some important references for subminiature one dimension line array optoelectric device.
Key words：ZnO;One dimension column array;Space variation different direction excitation;Emission spectrum
谢平波1,2，赵福利2，李亚栋3，龚 真2，汪河洲2. 一维氧化锌柱阵列空间取向激发的荧光光谱研究[J]. 光谱学与光谱分析, 2005, 25(06): 848-853.
XIE Ping-bo1, 2, ZHAO Fu-li2, LI Ya-dong3, GONG Zhen2, WANG He-zhou2. Photoluminescence of One Dimension ZnO Single Crystal Columns Array Excited by Different Space Variation Direction . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(06): 848-853.
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