Paper Title:
Effects of SnO2 Doping on the Performance of ZnO Porous Thick Film Gas Sensors
  Abstract

By using a unique hydrothermal hot-press (HHP) technique, ZnO and ZnO/SnO2 composite porous nanosolids (the content of SnO2 is 0, 1, 5 and 10 wt.%, respectively) were prepared. Furthermore, four kinds of gas sensors were fabricated by using ZnO (the sensor denoted as ZS0) and ZnO/SnO2 composite (denoted as ZS1, ZS5 and ZS10 respectively) porous nanosolids. The intrinsic resistance and gas sensing performance of sensors ZS0, ZS1, ZS5 and ZS10 to ethanol and acetone were tested. By comparing with that of ZS0, the sensors ZS1, ZS5 and ZS10 have obviously lower intrinsic resistance and working temperature, and their selectivity to ethanol was also improved. The reason for above results has been analyzed on the basis of micro-morphology observations.

  Info
Periodical
Edited by
Chengming Li, Chengbao Jiang, Zhiyong Zhong and Yichun Zhou
Pages
55-60
DOI
10.4028/www.scientific.net/MSF.687.55
Citation
H. Y. Xu, Y. T. Song, D. L. Cui, "Effects of SnO2 Doping on the Performance of ZnO Porous Thick Film Gas Sensors", Materials Science Forum, Vol. 687, pp. 55-60, 2011
Online since
June 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Ping Xing, Juan Li, Lei Zhou, Jian Ming Li, Nan Yuan Qiu
Abstract:The characters of metal oxide gas sensing nano-thin films are studied. The formula of the dynamical thickness effect characteristic time is...
1341
Authors: Feng Sun, Wei Ru Zhang, Ting Yan Tian, Xiang Hong Teng, Min Chao Ru, Yan Ding
Abstract:The sections of Φ55mm silicon nitride balls, sintered by gas pressure sintering were analyzed. The results show that temperature gradient...
61
Authors: Geunsik Lim, Tariq Manzur, Aravinda Kar
Chapter 6: SiC Devices, Circuits and Systems
Abstract:An uncooled SiC-based electro-optic device is developed for gas sensing applications. P-type dopants Ga, Sc, P and Al are incorporated into...
1195
Authors: Rawat Jaisutti, Tanakorn Osotchan
Chapter 1: Materials Behavior
Abstract:Molecular interaction between zinc phthalocyanine (ZnPc) thin films and various oxidizing gas molecules was examined by measuring sensor...
48
Authors: Teng Li, Xiao Mei Yuan, Shi Liang Yang, Xin Hui Zhang
Chapter 2: Motivation, Thermal, Electronics and Power Engineering
Abstract:A new approach is presented for analyzing gas mixtures by transforming the problem into a pattern classification one to reduce the effect of...
548