High Performance Indium-Doped ZnO Gas Sensor
Gas sensors for ethanol and acetone based on ZnO nanobelts with doping element indium were fabricated. Excellent sensitivity accompanied with short response time (10 s) and recovery time (23 s) to 150 ppm ethanol is obtained. For In-doped sensors, a minimum concentration of 37.5 ppm at 275°C in acet...
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Hindawi Limited
2015-01-01
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Series: | Journal of Nanomaterials |
Online Access: | http://dx.doi.org/10.1155/2015/954747 |
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doaj-2cd8070a728940aeae21aec70bf47c522020-11-24T23:16:07ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292015-01-01201510.1155/2015/954747954747High Performance Indium-Doped ZnO Gas SensorJunjie Qi0Hong Zhang1Shengnan Lu2Xin Li3Minxuan Xu4Yue Zhang5School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaGas sensors for ethanol and acetone based on ZnO nanobelts with doping element indium were fabricated. Excellent sensitivity accompanied with short response time (10 s) and recovery time (23 s) to 150 ppm ethanol is obtained. For In-doped sensors, a minimum concentration of 37.5 ppm at 275°C in acetone was observed with an average sensitivity of 714.4, which is 7 times larger than that of the pure sensors and much larger than that reported response (16) of Co-doped ZnO nanofibers to acetone. These results indicate that doping elements can improve gas sensitivity, which is associated with oxygen space and valence ions. In-doped ZnO nanobelts exhibit higher sensitivity to acetone than that to ethanol. These results indicate that doped ZnO nanobelts can successfully distinguish acetone and ethanol, which can be put into various practical applications.http://dx.doi.org/10.1155/2015/954747 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Junjie Qi Hong Zhang Shengnan Lu Xin Li Minxuan Xu Yue Zhang |
spellingShingle |
Junjie Qi Hong Zhang Shengnan Lu Xin Li Minxuan Xu Yue Zhang High Performance Indium-Doped ZnO Gas Sensor Journal of Nanomaterials |
author_facet |
Junjie Qi Hong Zhang Shengnan Lu Xin Li Minxuan Xu Yue Zhang |
author_sort |
Junjie Qi |
title |
High Performance Indium-Doped ZnO Gas Sensor |
title_short |
High Performance Indium-Doped ZnO Gas Sensor |
title_full |
High Performance Indium-Doped ZnO Gas Sensor |
title_fullStr |
High Performance Indium-Doped ZnO Gas Sensor |
title_full_unstemmed |
High Performance Indium-Doped ZnO Gas Sensor |
title_sort |
high performance indium-doped zno gas sensor |
publisher |
Hindawi Limited |
series |
Journal of Nanomaterials |
issn |
1687-4110 1687-4129 |
publishDate |
2015-01-01 |
description |
Gas sensors for ethanol and acetone based on ZnO nanobelts with doping element indium were fabricated. Excellent sensitivity accompanied with short response time (10 s) and recovery time (23 s) to 150 ppm ethanol is obtained. For In-doped sensors, a minimum concentration of 37.5 ppm at 275°C in acetone was observed with an average sensitivity of 714.4, which is 7 times larger than that of the pure sensors and much larger than that reported response (16) of Co-doped ZnO nanofibers to acetone. These results indicate that doping elements can improve gas sensitivity, which is associated with oxygen space and valence ions. In-doped ZnO nanobelts exhibit higher sensitivity to acetone than that to ethanol. These results indicate that doped ZnO nanobelts can successfully distinguish acetone and ethanol, which can be put into various practical applications. |
url |
http://dx.doi.org/10.1155/2015/954747 |
work_keys_str_mv |
AT junjieqi highperformanceindiumdopedznogassensor AT hongzhang highperformanceindiumdopedznogassensor AT shengnanlu highperformanceindiumdopedznogassensor AT xinli highperformanceindiumdopedznogassensor AT minxuanxu highperformanceindiumdopedznogassensor AT yuezhang highperformanceindiumdopedznogassensor |
_version_ |
1725588509144645632 |