...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Applied Ceramic Technology / Functional Ceramics >Optical Properties and Fabrication of Cuprous Oxide Nanoparticles by Microemulsion Method
【24h】

Optical Properties and Fabrication of Cuprous Oxide Nanoparticles by Microemulsion Method

机译：微乳液法制备氧化亚铜纳米粒子的光学性质及制备

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

Well-crystallized cuprous oxide (Cu_2O) nanoparticles were successfully fabricated using a microemulsion (ME) method. A solution containing copper (I) element for hydrolysis reaction in small water droplets was obtained using copper (I) acetate as the raw material with the appropriate addition of chelating agents (n-propylamine or benzylamine). A transparent yellowish suspension containing Cu_2O nanoparticles (ME-Cu_2O suspension) was prepared at room temperature, using cyclohexane or benzene as a hydrophobic solvent. The average sizes of the CU_2O nanoparticles obtained in this case were estimated to be 3.9 and 6.2 nm, respectively. CU_2O thin film (average size = 24.6 nm) and a hybrid composite of Cu_2O nanoparticles with a polymer matrix (average size = 5.5 nm) were also prepared from a ME-Cu_2O suspension. Optical absorption study revealed that direct band gaps of the Cu_2O thin film (2.50 eV) and the hybrid composite (2.65 eV) were much greater than that of bulk Cu_2O (2.17 eV), as a result of quantum size effect in Cu_2O. The pho-toluminescence of the obtained Cu_2O nanoparticles was measured at 12 K. The present study provides a new promising method to fabricate well-crystallized Cu_2O nanoparticles of single nanometer sizes.
机译：使用微乳液（ME）方法成功制备了结晶良好的氧化亚铜（Cu_2O）纳米颗粒。使用乙酸铜（I）作为原料并适当添加螯合剂（正丙胺或苄胺），获得了在小水滴中用于水解反应的含铜（I）元素的溶液。在室温下，使用环己烷或苯作为疏水性溶剂，制备了包含Cu_2O纳米颗粒的透明淡黄色悬浮液（ME-Cu_2O悬浮液）。在这种情况下获得的CU_2O纳米颗粒的平均尺寸分​​别估计为3.9和6.2 nm。还从ME-Cu_2O悬浮液中制备了CU_2O薄膜（平均尺寸= 24.6 nm）和Cu_2O纳米粒子与聚合物基质的杂化复合物（平均尺寸= 5.5 nm）。光吸收研究表明，由于Cu_2O中的量子尺寸效应，Cu_2O薄膜（2.50 eV）和杂化复合材料（2.65 eV）的直接带隙远大于块状Cu_2O（2.17 eV）。在12 K下测量了所获得的Cu_2O纳米粒子的光致发光。本研究提供了一种新的有前途的方法来制备结晶良好的单个纳米尺寸的Cu_2O纳米粒子。

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