Co-precipitation synthesis of nanocrystalline SnO2: Effect of Fe doping on structural, morphological and ethanol vapor response properties

被引：24
作者：
Chikhale, L. P. [1 ]
Patil, J. Y. [1 ]
Rajgure, A. V. [1 ]
Shaikh, F. I. [1 ]
Mulla, I. S. [2 ]
Suryavanshi, S. S. [1 ]
机构：
[1] Solapur Univ, Sch Phys Sci, Solapur 413255, India
[2] CSIR, Pune 411008, Maharashtra, India
来源：
MEASUREMENT | 2014年 / 57卷
关键词：
Tin oxide; Thick film sensor; Screen printing; Ethanol vapor; GAS-SENSING PROPERTIES; THICK-FILMS; LPG RESPONSE; SENSITIVITY; SENSORS; METHANE;
D O I：
10.1016/j.measurement.2014.07.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present study describes undoped and Fe-doped tin dioxide thick films as selective ethanol vapor sensors. The undoped and Fe doped SnO2 powders were synthesized by using a facile co-precipitation route. The thick films of undoped and Fe-doped SnO2 were deposited by screen-printing technique and then sintered at 650 degrees C for 2 h. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) techniques. The XRD studies reveal formation of nanocrystalline structure. The particle size of undoped and Fe (2 and 4 mol%) doped SnO2 sintered powders were 17, 10 and 8 nm, respectively. It was found that the response of SnO2 improved on addition of Fe. The 2 mol% Fe doped SnO2 exhibits highest response toward ethanol at the operating temperature of 300 degrees C with response and recovery time of 15 and 32 s, respectively. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：46 / 52
页数：7
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