UV-Enhanced Room Temperature Ozone Sensor Based on Hierarchical SnO_2-In_2O_3  

作　　者：SUN Jian-bo XU Jing WANG Biao SUN Peng LIU Feng-min LU Ge-yu 

机构地区：[1]State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun 130012,P.R.China [2]Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,P.R.China

出　　处：《Chemical Research in Chinese Universities》2012年第3期483-487,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Nos.60906036,61074172,61134010);the Program for Changjiang Scholars and Innovative Research Team in Universities of China(No.IRT1017)

摘　　要：SnO2-ln2O3 hierarchical microspheres were prepared by the hydrothermal and solvothermal method. The morphology, phase crystallinity of the obtained SnO2-In203 were measured by X-ray diffraetion（XRD）, scan electron microscopy（SEM）, respectively. A room temperature ozone sensor based on SnO2-In2O3 hierarchical microspheres was fabricated and investigated. The gas sensing properties of the sensor using SnO2-In2O3 strongly depended on the proportion of SnO2 and In2O3. The sensitivity and response/recovery speed were greatly enhanced by UV illumination. A gas sensing mechanism related to oxygen defect was suggested.SnO2-ln2O3 hierarchical microspheres were prepared by the hydrothermal and solvothermal method. The morphology, phase crystallinity of the obtained SnO2-In203 were measured by X-ray diffraetion（XRD）, scan electron microscopy（SEM）, respectively. A room temperature ozone sensor based on SnO2-In2O3 hierarchical microspheres was fabricated and investigated. The gas sensing properties of the sensor using SnO2-In2O3 strongly depended on the proportion of SnO2 and In2O3. The sensitivity and response/recovery speed were greatly enhanced by UV illumination. A gas sensing mechanism related to oxygen defect was suggested.

关 键 词：Ozone sensor Hierarchical SnO2-In2O3 UV-Enhanced Room temperature 

分 类 号：TN304.21[电子电信—物理电子学] TP212[自动化与计算机技术—检测技术与自动化装置]