| 退火温度对NdFeO3微结构及酒敏性能的影响 |
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| 引用本文： | 吴占雷,胡季帆,赵玛,韩周祥,张茹. 退火温度对NdFeO3微结构及酒敏性能的影响[J]. 电子元件与材料, 2010, 29(4). DOI: 10.3969/j.issn.1001-2028.2010.04.010 |
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| 作者姓名： | 吴占雷 胡季帆 赵玛 韩周祥 张茹 |
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| 作者单位： | 郑州轻工业学院,河南省表界面科学重点实验室,河南,郑州,450002;郑州轻工业学院,河南省表界面科学重点实验室,河南,郑州,450002;山东大学,物理学院,山东,济南,250100 |
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| 基金项目： | 国家自然科学基金资助项目(No.50872069) |
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| 摘 要： | 采用sol-gel法制备了具有单一斜方钙钛矿结构的NdFeO3样品,研究了退火温度对NdFeO3样品的晶格常数、微结构、电性能及酒敏特性的影响。结果表明:随着退火温度的提高,样品的晶胞体积减小,晶粒度变大,利用该样品制成的气敏元件的电导也随之增大。800℃退火的样品显示出最佳酒敏特性,元件对体积分数为5×10–4的乙醇的最大灵敏度高达151.69,不同退火温度的样品均显示出较好的低温(90℃左右)工作特性。
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| 关 键 词： | NdFeO3 退火温度 微结构 电性能 酒敏性能 |
Effects of annealing temperature on the microstructure and ethanol-sensing properties of NdFeO3 |
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| WU Zhanlei,HU Jifan,ZHAO Ma,HAN Zhouxiang,ZHANG Ru. Effects of annealing temperature on the microstructure and ethanol-sensing properties of NdFeO3[J]. Electronic Components & Materials, 2010, 29(4). DOI: 10.3969/j.issn.1001-2028.2010.04.010 |
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| Authors: | WU Zhanlei HU Jifan ZHAO Ma HAN Zhouxiang ZHANG Ru |
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| Affiliation: | 1. Henan Provincial Key Lab of Surface&Interface Science;Zhengzhou University of Light Industry;Zhengzhou 450002;China;2. School of Physics;Shandong University;Jinan 250100;China |
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| Abstract: | In order to get optimal annealing temperature of the NdFeO3 ethanol-sensing materials, the NdFeO3 samples having single rhomboidal perovskite structure were prepared using the sol-gel method. The influences of annealing temperature on the lattice constant, microstructure, electrical and ethanol-sensing properties for NdFeO3 samples were investigated. The results indicate that with the increase of annealing temperatures, the cell volume reduces; the crystallite of the samples increases; the conductance of th... |
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| Keywords: | NdFeO3 annealing temperature microstructure electrical property ethanol-sensing property |
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