...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Low-temperature solid-state synthesis and optical properties of CdS-ZnS and ZnS-CdS alloy nanoparticles
【24h】

Low-temperature solid-state synthesis and optical properties of CdS-ZnS and ZnS-CdS alloy nanoparticles

机译：CdS-ZnS和ZnS-CdS合金纳米粒子的低温固态合成及其光学性质

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A simple low-temperature solid-state synthetic method was employed to obtain ZnS-CdS and CdS-ZnS alloy nanoparticles. The effects of reaction sequence, reactant molar ratios, and synthesis temperature on the products were investigated. The crystal structure and morphology of the products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and fourier transform infrared (FT-IR) spectroscopy. The results show that the products are alloy nanoparticles with a cubic phase structure. The formation mechanism of the alloy nanoparticles is briefly discussed. Sufficient grinding and crystalline water may be essential to form alloy nanoparticles. Ultraviolet-visible (UV-vis) spectra show that the edge absorptions of the CdS-ZnS and ZnS-CdS nanoparticles were located between those of ZnS and CdS bulks, and the absorbance at the peak maximum was practically dependent on reaction temperature, reaction sequence, and molar ratio. Extrinsic deep-level emission resulted in strong peaks in the photo-luminescence (PL) spectra. The position and intensity of the emission peaks varied with the conditions during synthesis.
机译：采用简单的低温固态合成方法获得了ZnS-CdS和CdS-ZnS合金纳米粒子。研究了反应顺序，反应物摩尔比和合成温度对产物的影响。通过X射线衍射（XRD），透射电子显微镜（TEM）和傅立叶变换红外光谱（FT-IR）光谱表征产物的晶体结构和形态。结果表明，产物为具有立方相结构的合金纳米颗粒。简要讨论了合金纳米颗粒的形成机理。足够的研磨和结晶水对于形成合金纳米粒子可能至关重要。紫外-可见光谱表明，CdS-ZnS和ZnS-CdS纳米颗粒的边缘吸收位于ZnS和CdS主体的边缘吸收之间，并且最大吸收在实际中取决于反应温度，反应顺序和摩尔比。外在深能级发射导致光致发光（PL）光谱中出现强峰。发射峰的位置和强度随合成过程中的条件而变化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号