期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 324, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2020.128755
关键词
oxygen vacancies; rare earth elements; gas sensor; nanotubes; doping
资金
- National Natural Science Foundation of China [61801200, 51505209, 51572118, 11674140, 51772135]
- Fundamental Research Funds for the Central Universities [lzujbky-2018-33, lzujbky-2020-60, lzujbky-2017-173]
Herein, pristine indium oxide (In2O3) and rare earth (Ce, Tm, Eu, Er, and Tb)-doped In2O3 nanotubes were synthesized by a facile one-step electrospinning method. Rare-earth (RE) doping increases the number of active sites on the surface, which enhances the electrical response and gas-sensing performance of In2O3, with different RE elements causing different enhancement effects. Transmission electron microscopy elemental mapping shows a homogeneous distribution of RE elements on the whole nanotube. Analysis of the gas-sensing mechanism shows that RE doping modifies the oxygen species adsorbed on the sensor surface. Our findings promote the development of new dopant-based metal oxide semiconductors for high-performance gas sensing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据