| 锌掺杂量对In_2O_3电导和气敏性能的影响 |
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| 引用本文： | 李永红,葛秀涛,刘杏芹.锌掺杂量对In_2O_3电导和气敏性能的影响[J].电子元件与材料,2007,26(4):31-33. |
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| 作者姓名： | 李永红 葛秀涛 刘杏芹 |
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| 作者单位： | 1. 滁州学院化学系,安徽,滁州,239012
2. 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 |
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| 摘 要： | 用化学共沉淀和热处理法于pH11.5～12.5时,用(NH4)2CO3作沉淀剂,制备了Zn2+掺杂的In2O3微粉。研究了Zn2+掺杂量对In2O3气敏元件电导和气敏性能的影响。结果发现,ZnO与In2O3可形成有限固溶体In2-xZnxO3(0≤x≤0.10);In1.95Zn0.05O3气敏元件在223℃工作温度下,对浓度为4.5×10–7mol/L的C2H5OH的灵敏度高达174.4,且选择性也好。
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| 关 键 词： | 电子技术 In1.95Zn0.05O3固溶体 化学共沉淀法 气敏性能 |
| 文章编号： | 1001-2028（2007）04-0031-03 |
| 修稿时间： | 2006-11-23 |
Effect of Zn2+ doping amount on the conductance and gas-sensing properties of In2O3 |
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| LI Yong-hong,GE Xiu-tao,LIU Xing-qin.Effect of Zn2+ doping amount on the conductance and gas-sensing properties of In2O3[J].Electronic Components & Materials,2007,26(4):31-33. |
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| Authors: | LI Yong-hong GE Xiu-tao LIU Xing-qin |
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| Abstract: | The effect of Zn2+ doping amount on the conductance and gas-sensing properties of In2O3 was investigated. The Zn2+ doped In2O3 powder was prepared by chemical coprecipitation and heat-treated method. The results indicate that solid solution In2-xZnxO3 (0≤x≤0.10) can be formed by ZnO and In2O3; In1.95Zn0.05O3 gas sensor has a high sensitivity (174.4) and selectivity to 4.5×10–7 mol/L C2H5OH at 223 ℃. |
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| Keywords: | electron technology In1 95Zn0 05O3 solid solution chemical coprecipitation method gas-sensing properties |
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