高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

一种新颖的ZnO纳米结构的自组装合成及发光性能

周泽广1, 柴春芳2, 米艳1, 谭学才1, 吴健1, 黄在银1,2, 袁爱群1   

    1. 广西民族大学化学与生态工程学院, 南宁 530006;
    2. 广西大学化学化工学院, 南宁 530004
  • 收稿日期:2007-04-03 修回日期:1900-01-01 出版日期:2007-10-10 发布日期:2007-10-10
  • 通讯作者: 黄在银

Self-assembly and Photoluminescence of a Unique ZnO Nanostructure

ZHOU Ze-Guang1, CHAI Chun-Fang2, MI Yan1, TAN Xue-Cai1, WU Jian1, HUANG Zai-Yin1,2*, YUAN Ai-Qun1   

    1. School of Chemistry & Ecological Engineering, Guangxi University for Nationalities, Nanning 530006, China;
    2. School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China
  • Received:2007-04-03 Revised:1900-01-01 Online:2007-10-10 Published:2007-10-10
  • Contact: HUANG Zai-Yin

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被引次数

14

摘要： 采用水热法制备了花生状ZnO微米棒, 通过XRD, EDX和FE-SEM等技术分析了其物相组成、形貌及尺寸; 通过变温荧光光谱测试及对所得谱图的高斯拟合研究了该ZnO微米棒的荧光性能, 并将其在300 K时所得的谱图与常规室温荧光谱图进行了比较. XRD, EDX及FE-SEM测试结果表明, 该产物为长约10 μm, 直径约2 μm的花生状六方纤锌矿ZnO微米棒; 荧光测试结果表明, 该ZnO微米棒有紫外峰、紫峰和绿峰3个发光峰, 当温度从8 K升至300 K时, 各峰的强度均有所减弱, 同时紫外峰出现蓝移, 绿峰出现红移, 紫峰峰位出现特殊的“S”形(红移-蓝移-红移)移动. 并对各峰的产生及随温度变化的规律进行了探讨.

关键词: 水热法, 氧化锌, 微米棒, 变温荧光光谱

Abstract: A unique ZnO nanostructures were synthesized with hydrothermal method. The composition, morphology and size of the sample was determined with XRD, EDX and FE-SEM. Photoluminescence(PL) properties were studied by room-temperature PL spectra, temperature-dependent shifts and its Gaussian-fitted spectra. The results of XRD, EDX and FE-SEM analysis show that the products are the hexagonal wurtzite ZnO nanostructures, with a length of ~10 μm and diameter of ~2 μm; UV, violet and green peaks, which exhibit blue-, S-shaped (red-blue-red) and redshift, respectively, and the decrease of intensity, with the temperature increasing from 8 K to 300 K, are observed in the PL spectra. The original and different temperature dependence of the UV, violet and green peaks is discussed.

Key words: Hydrothermal method, ZnO, Nanostructure, Temperature-dependence PL spectrum

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