应用化学 ›› 1998, Vol. 0 ›› Issue (6): 41-44.

• 研究论文 • 上一篇    下一篇

氧化铟掺杂对ZnFe2O4半导体气敏性能的影响

储向峰, 刘杏芹, 孟广耀   

  1. 中国科学技术大学材料科学与工程系 合肥230026
  • 收稿日期:1998-04-29 修回日期:1998-10-14 出版日期:1998-12-10 发布日期:1998-12-10
  • 基金资助:
    国家自然科学基金(29571026)

Effect of In2O3 Doping on the Gas Sensitivity of ZnFe2O4

Chu Xiangfeng, Liu Xingqin, Meng Guangyao   

  1. Department of Materials Science and Engineering, China University of Science and Technology, Hefei 230026
  • Received:1998-04-29 Revised:1998-10-14 Published:1998-12-10 Online:1998-12-10

摘要: 用化学共沉淀法在ZnFe2O4中掺入In2O3.X射线衍射分析证实,In2O3与ZnFe2O3之间没有新相生成,晶格常数有微小变化。掺入In2O3降低了ZnFe2O4的电导,改变了该系列材料的导电机制,提高了材料对乙醇的敏感性和选择性,而且缩短了材料的响应时间.

关键词: ZnFe2O4, In2O3, 掺杂, 酒敏传感器

Abstract: In2O3 has been doped in ZnFe2O4 by a chemical coprecipitation method. XRD results showed that in doped system there is no new phase formed and only a little change in lattice constants. Doping of In2O3 decreased the conductivity of ZnFe2O4 sensor, changed its conduction mechanism and increased its response to C2H5OH.

Key words: ZnFe2O4, In2O3, doping, ethanol sensor