| V2O5光电薄膜的溶胶——凝胶制备及性能研究 |
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| 引用本文： | 方国家,王汉忠,吉向东.V2O5光电薄膜的溶胶——凝胶制备及性能研究[J].襄樊学院学报,2001,22(2):16-21. |
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| 作者姓名： | 方国家 王汉忠 吉向东 |
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| 作者单位： | 襄樊学院,物理学系信息功能材料研究室,湖北,襄樊,441053 |
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| 基金项目： | 湖北省自然科学基金资助项目(99J049)和湖北省教育厅资助的优秀中青年人才项目(99B019) |
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| 摘 要： | 以V2O5为原料，苯甲醇，异丁醇为溶剂，采用溶胶0－凝胶（Sol-Gel）工艺制备了V2O5薄膜。采用差热－失重（DTA－TG）、付里叶红外光谱（FT－IR）、X－射线衍射（XRD）等分析手段研究了V205薄膜的结构特性。并研究了V2O5薄膜的透射光谱、气敏、伏安特性及温阻特性。实验发现沉积在ITO导电玻璃衬底上的V2O5薄膜，烧结温度起高,透光性能越好；V2O5薄膜在常温下对NOx气体具有一定的气敏性能。
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| 关 键 词： | Sol－Gel工艺 V2O5薄膜 物相 晶格常数 结构分析 气敏性能 透射光谱 伏安特性 ITO导电玻璃衬底 |
| 文章编号： | 1009-2854(2001)02-0016-06 |
| 修稿时间： | 2001年2月26日 |
Preparation and Characterization of Photoelectric V2O5 Thin Films Prepared by Sol-gel Technique |
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| FANG Guo-jia,WANG Han-zhong,JI Xiang-dong.Preparation and Characterization of Photoelectric V2O5 Thin Films Prepared by Sol-gel Technique[J].Journal of Xiangfan University,2001,22(2):16-21. |
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| Authors: | FANG Guo-jia WANG Han-zhong JI Xiang-dong |
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| Abstract: | Using non-alkoxide V_2O_5 as precursors, benzyl alcohol and iso-butanol as solvents, V_2O_5 thin films were prepared by the sol-gel technique. In this paper, the thermal decomposition and crystallization process of V_2O_5 gel powders has been characterized with DTA-TG analysis. The structural properties of V_2O_5 thin films were analysed by using X-ray diffraction (XRD), Fourier transformation infrared spectrum (FT-IR). The transmittance spectrum, resistance vs. working temperature (R-T) relation, Voltage-current (V-I) relation and gas sensing properties concerning about V_2O_5 thin films have been also studied. Experimental results illustrated that the transmittance of V_2O_5 thin film increases with the increase of annealing temperature. V_2O_5 thin film has good sensitivity toward NO_x gas at room temperature. |
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| Keywords: | Sol-gel technique V_2O_5 thin film Structural analysis Electrical and gas sensing properties Transmission spectrum |
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