The highly promotive sensing performance of a single cerium doped SnO2 nanobelt sensor to ethanol

被引：20
作者：
Qin, Zhaojun [1 ]
Liu, Yingkai [1 ]
Chen, Weiwu [1 ]
Wu, Yuemei [1 ]
Li, Shuanghui [1 ]
机构：
[1] Yunnan Normal Univ, Inst Phys & Elect Informat Technol, 1 Yuhua Dist, Kunming 650500, Peoples R China
来源：
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2016年 / 52卷
基金：
中国国家自然科学基金;
关键词：
Nanobelts; Ce-SnO2; sensor; Ethanol; Gas sensing; Oxygen absorption; GAS SENSOR; NANOPARTICLES; NANOWIRES; FABRICATION; NANOTUBES; PHOTODETECTORS; OXIDES; METAL; FILMS; SIZE;
D O I：
10.1016/j.mssp.2016.05.014
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Pure SnO2 nanobelts and Ce-doped SnO2 nanobelts were successfully synthesized and their morphology, microstructure, and elemental composition have been characterized by a series of techniques. The results reveal that Ce ions have incorporated into the lattice of SnO2. The corresponding devices based on single nanobelt are fabricated and their sensitive properties are investigated systemically. The Ce-SnO2 sensor possesses a great response (8.2) to 100 ppm of ethanol at optimum temperature (230 degrees C). At the same time, its calculated theoretical detection limit is 78 ppb. The response and recovery time is quite short and air humidity has little effect on the performance of the sensor. In addition, the gas sensing mechanism of Ce-doped SnO2 is discussed. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：75 / 81
页数：7
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