The preparation of grid-textured V2O5 films and their potential applications in gas sensing

被引：0
|
作者：
CHENG Rong [1 ]
HUANG WeiYi [2 ]
LIU XiangBo [1 ,2 ]
LING Francis Chi Chung [2 ]
GAO Ju [2 ]
NI Hao [2 ,3 ]
机构：
[1] Department of Mechanical Engineering, Tsinghua University
[2] Department of Physics, The University of Hong Kong
[3] College of Science, China University of Petroleum (Huadong)
来源：
Science China(Technological Sciences) | 2020年 / 63卷 / 03期
基金：
中国国家自然科学基金;
关键词：
V2O5; thin film; gas sensing;
D O I：
暂无
中图分类号：
TB383.2 [];
学科分类号：
070205 ; 080501 ; 1406 ;
摘要：
Novel nano-structured films of V2O5are prepared by pulsed laser deposition method. Nanoscaled V2O5ridges lie on SrTiO3substrate and construct into grid-textured structures. Structural properties of the films have been analyzed by scanning electron microscope, X-ray diffraction and transmission electron microscope. The films have enlarged surface-to-volume ratio due to the ridge-channel structure which makes them applicable to gas sensing. Therefore, gas sensors based on the V2O5films have been assembled which present reliable sensing properties to gaseous acetone, and ethanol at room temperature. The physical-chemical reactions between adsorbed O2–and testing gases are the possible reason for this property.
引用
收藏
页码：467 / 471
页数：5
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