高压对纳米ZnO和ZnO/SnO2复合材料的结构和发光性能的影响

孙振亚; 王烁; 邓允棣; 黎明发

doi:10.11858/gywlxb.2009.04.010

高压对纳米ZnO和ZnO/SnO2复合材料的结构和发光性能的影响

doi: 10.11858/gywlxb.2009.04.010

1.
武汉理工大学材料研究与测试中心，湖北武汉 430070；
2.
武汉理工大学资源与环境工程学院，湖北武汉 430070；
3.
武汉理工大学高温高压物理研究所，湖北武汉 430070

详细信息

通讯作者:
孙振亚

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出版历程
- 收稿日期: 2008-09-05
- 修回日期: 2009-02-20
- 发布日期: 2009-08-15

Effects of High Pressure Treatment on Structures and Luminescence Properties of Nano ZnO and Composite ZnO/SnO2 Materials

1.
Center for Materials Research and Analysis, Wuhan University of Technology, Wuhan 430070, China;
2.
School of Resource and Environment Engineering, Wuhan University of Technology, Wuhan 430070, China;
3.
Institute of High Temperature and High Pressure Physics, Wuhan University of Technology, Wuhan 430070, China

More Information

Corresponding author: SUN Zhen-Ya

摘要

摘要: 利用溶胶-凝胶法制备出了纳米晶ZnO与含有3%摩尔分数SnO2的ZnO/SnO2复合材料，在六面顶压机上对制备出的两种样品进行了室温下、6GPa的高压处理。采用X射线衍射（XRD）、透射电子显微镜（TEM）和光致荧光谱（PL）等方法，对高压处理前后样品的结构和发光性质进行了表征。结果表明：高压处理后回收到的纳米晶ZnO和ZnO/SnO2复合材料的平均粒径分别减小5.9%和26.3%；高压处理后ZnO和ZnO/SnO2复合材料光致发光谱的发光带强度都有所降低，但ZnO/SnO2复合材料发光带强度降低幅度比纯ZnO小，对产生这些现象的原因进行了讨论。
- 纳米ZnO /
- 纳米ZnO/SnO2复合材料 /
- 高压 /
- 光致发光
Abstract: The nano ZnO and nano composite ZnO/SnO2 materials were prepared by sol-gel method, then the prepared specimens were treated by high pressure method of which the pressure is up to 6 GPa. X-ray diffraction (XRD) and transmission electron microscopy (TEM) and photoluminescence spectrometer were employed to study structures and luminescence properties of the specimens. The results indicate that the particle sizes of ZnO and ZnO/SnO2 decrease 5.9% and 26.3% respectively after high pressure treatment. And the photoluminescence spectra show that photoluminescence spectra intensity of nano ZnO and composite ZnO/SnO2 materials both reduce after high pressure treatment, but the reduced intensity of composite ZnO/SnO2 materials is less than the one of pure ZnO, and the possible reasons are discussed.
- nano ZnO /
- composite ZnO/SnO2 materials /
- high pressure /
- photoluminescence

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