氧化锌基纳米材料光学及非线性光学性质稳定性的研究

发布时间：2018-01-11 06:14

  本文关键词：氧化锌基纳米材料光学及非线性光学性质稳定性的研究　出处：《长春理工大学》2015年硕士论文　论文类型：学位论文

  更多相关文章： ZnO纳米材料 发光 温度 掺杂

【摘要】：近年来,ZnO作为一种新型的波长较短的半导体激光材料被大众人群所知晓,由于ZnO其自身所具有的十分优良的电学性能以及光学性能,所以时下被广泛应用于各类型的光学器件、压电器件以及场发射器件。自此,ZnO系材料成为材料科学的研究焦点,同样也是基础科学和应用科学的重中之重。本文制备的Fe、Co掺杂ZnO纳米材料是采用了改进的微乳液法制备的,并且对所制备材料的结构和形貌分别使用X射线衍射(XRD)及扫描电子显微镜的(SEM)进行了表征。为了明确温度对ZnO纳米材料光学性质的影响,使用自组装温控仪进行降温操作,对所制备的ZnO及Fe、Co掺杂ZnO材料进行了光学性质的对比研究,得到了在改变不同温度的条件下样品ZnO及分别用Fe、Co掺杂所得的样品ZnO纳米材料随温度的改变而发生一系列变化的对比发光光谱。并分析了Fe、Co掺杂导致ZnO缺陷能级的改变而使得ZnO发光光谱改变的诸多问题,进而分析了对ZnO纳米材料发光特性的影响。
[Abstract]:In recent years, as a new type of semiconductor laser material with shorter wavelength, ZnO has been known to the public because of its excellent electrical and optical properties. Therefore, it has been widely used in various types of optical devices, piezoelectric devices and field emission devices. Since then, ZnO materials have become the focus of material science research. FeCo doped ZnO nanomaterials were prepared by improved microemulsion method. The structure and morphology of the prepared materials were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) respectively. In order to determine the effect of temperature on the optical properties of ZnO nanomaterials. The optical properties of ZnO and FeCo doped ZnO materials were studied by using a self-assembled temperature controller. The sample ZnO and Fe were obtained at different temperatures. A series of comparative luminescence spectra of Co doped ZnO nanomaterials changed with the change of temperature, and Fe was analyzed. The effect of Co doping on the luminescence properties of ZnO nanomaterials is analyzed. The change of ZnO defect energy level leads to the change of ZnO luminescence spectra.
【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ132.41;TB383.1

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