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| 复合钒钼酸干凝胶薄膜湿敏元件的复阻抗谱 | |
| 引用本文： | 李莉,童茂松,翁爱华. 复合钒钼酸干凝胶薄膜湿敏元件的复阻抗谱[J]. 传感器与微系统, 2006, 25(5): 39-41 |
| 作者姓名： | 李莉 童茂松 翁爱华 |
| 作者单位： | 1. 大庆石油学院,化学化工学院,黑龙江,大庆,163318 2. 大庆石油管理局,测井公司,黑龙江,大庆,163412 3. 吉林大学,地球探测科学与技术学院,吉林,长春,130026 |
| 摘 要： | 采用溶胶凝胶法制备了复合钒钼酸H2V12-xMoxO31±y.nH2O(0≤x≤4.0)干凝胶薄膜湿敏元件,对其进行了复阻抗谱分析,结果表明:随着x的增加,对应的阻抗谱半圆的半径逐渐变大,x≥2.5时,电极表面接触部分在阻抗谱低频端开始体现,x=2.0时,阻抗值较大,且不受频率影响,元件性能较好;测试频率为1 kHz时,H2V8.5Mo3.5O32.nH2O干凝胶薄膜湿敏元件在全湿度范围内,其阻抗湿度曲线线性良好,灵敏度较高。 |
| 关 键 词： | 复合钒钼酸干凝胶薄膜 湿敏元件 复阻抗 |
| 文章编号： | 1000-9787（2006）05-0039-03 |
| 收稿时间： | 2005-11-09 |
| 修稿时间： | 2005-11-09 |
Complex impedance plots of poly-vanadium-molybdenum acid xerogel thin film humidity elements |
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| LI Li,TONG Mao-song,WENG Ai-hua. Complex impedance plots of poly-vanadium-molybdenum acid xerogel thin film humidity elements[J]. Transducer and Microsystem Technology, 2006, 25(5): 39-41 | |
| Authors: | LI Li TONG Mao-song WENG Ai-hua |
| Abstract: | Poly-vanadium-molybdenum acid H_2V_(12-x)Mo_xO_(31±y)·nH_2O(0≤x≤4.0) xerogel thin films humidity elements are prepared by sol-gel process,and its complex impedance plots are analyzed.Results show that the radius of semicircle of the complex impedance plots for poly-vanadium-molybdenum acid xerogel thin films increase with increasing of x.When x≥2.5,in the low-frequency range,the contact part of the total impedance for electrode appears.The properties of humidity elements are best as x=2.0,while the complex impedance is higher and no relationship with frequency.H_2V_(8.5)Mo_(3.5)O_(32)·nH_2O xerogel thin film humidity element has good linear and high sensitivity in total relative humidity range at 1 kHz. |
| Keywords: | poly-vanadium-molybdenum xerogel thin film humidity element complex impedance |
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