| CdO对In2O3电导和气敏性能的影响 |
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| 引用本文： | 侯长平,李永红,葛秀涛,方大儒,沈玲,刘杏芹. CdO对In2O3电导和气敏性能的影响[J]. 电子元件与材料, 2004, 23(9): 17-18,28 |
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| 作者姓名： | 侯长平 李永红 葛秀涛 方大儒 沈玲 刘杏芹 |
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| 作者单位： | 滁州学院化学系,安徽,滁州,239012;中国科学技术大学材料科学与工程系,安徽,合肥,230026 |
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| 基金项目： | 安徽省教育厅自然科学基金，滁州学院校科研和教改项目，2004kj289，2002kj002，， |
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| 摘 要： | 为探索新型CdO-In2O3材料的气敏性能,用化学共沉淀法制备了CdO掺杂的In2O3微粉,研究了CdO掺杂对In2O3电导和气敏效应的影响。结果表明CdO和In2O3间能形成有限固溶体In2-CdxO3(0≤x≤0.02);In1.98Cd0.02O3x的电导比纯In2O3小得多;900℃下热处理4h所得的x(CdO)为2%的In2O3传感器在183℃工作温度下,对45μmol·L–1C2H5OH的灵敏度达276、响应–恢复时间只有3s和180s。有望开发为一类新型酒敏材料。
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| 关 键 词： | 电子技术 In1.98Cd0.02O3传感器 CdIn× 电导率 C2H5OH 气敏性能 |
| 文章编号： | 1001-2028(2004)09-0017-02 |
Influence of CdO on the Conductivity and Gas-sensing Properties of In2O3 |
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| HOU Chang-ping,LI Yong-hong,GE Xiu-tao,FANG Da-ru,SHEN Ling,LIU Xing-qin. Influence of CdO on the Conductivity and Gas-sensing Properties of In2O3[J]. Electronic Components & Materials, 2004, 23(9): 17-18,28 |
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| Authors: | HOU Chang-ping LI Yong-hong GE Xiu-tao FANG Da-ru SHEN Ling LIU Xing-qin |
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| Affiliation: | HOU Chang-ping1,LI Yong-hong1,GE Xiu-tao1,FANG Da-ru1,SHEN Ling1,LIU Xing-qin2 |
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| Abstract: | In order to explore gas-sensing properties of a novel CdO-In2O3 materials, In2O3 micropowders doped with CdO were prepared by chemical coprecipitation. And the effects of CdO on the conductivity and gas-sensing properties of In2O3 were also studied. The results obtained show that (1) solid solution In2- CdxO3(0≤x≤0.02) can be formed by CdO and x In2O3; (2) the conductivity of In1.98Cd0.02O3 is lower than pure In2O3; (3) of the In1.98Cd0.02O3 sensor, the sensitivity is 276 for 45 μmol·L–1 C2H5OH at 183℃, response-recovery times are 3 and 180 s, respectively. |
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| Keywords: | electronic technology In_(1.98)Cd_(0.02)O_3 sensor CdIn conductivity C_2H_5OH gas-sensing property × |
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