中国物理B ›› 2011, Vol. 20 ›› Issue (4): 40601-040601.doi: 10.1088/1674-1056/20/4/040601

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Effect of displacement on resistance and capacitance of polyaniline film

Muhammad Tariq Saeed1, Fazal Ahmad Khalid1, Khasan Sanginovich Karimov2, Syed Abdul Moiz3   

  1. (1)GIK Institute of Engineering Sciences and Technology, Topi 23640, Swabi, Khyber Pukhtoonkhawa, Pakistan; (2)GIK Institute of Engineering Sciences and Technology, Topi 23640, Swabi, Khyber Pukhtoonkhawa, Pakistan;Physical Technical Institute of Academy of Sciences, Rudaki Ave. 33, Dushanbe, 734025, Tajikistan; (3)Semiconductor Nano Processing Lab (SNPL), Department of Chemical and Material Engineering, Hanyang University, 1271 Sadong, Sangrok-gu, Ansan-Si, Geyonggi-do, 426-791, Korea
  • 收稿日期:2010-07-04 修回日期:2010-08-29 出版日期:2011-04-15 发布日期:2011-04-15

Effect of displacement on resistance and capacitance of polyaniline film

Khasan Sanginovich Karimova)b),Muhammad Tariq Saeeda)†, Fazal Ahmad Khalida),and Syed Abdul Moiz c)   

  1. a GIK Institute of Engineering Sciences and Technology, Topi 23640, Swabi, Khyber Pukhtoonkhawa, Pakistan; b Physical Technical Institute of Academy of Sciences, Rudaki Ave. 33, Dushanbe, 734025, Tajikistan; c Semiconductor Nano Processing Lab (SNPL), Department of Chemical and Material Engineering, Hanyang University, 1271 Sadong, Sangrok-gu, Ansan-Si, Geyonggi-do, 426-791, Korea
  • Received:2010-07-04 Revised:2010-08-29 Online:2011-04-15 Published:2011-04-15

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摘要： This paper investigates the properties of displacement sensors based on polyaniline (PANI) films. About 1 wt% of PANI micropowder is mixed and stirred in a solution of 90 wt% water and 10 wt% alcohol at room temperature. The films of PANI are deposited from solution by drop-casting on Ag electrodes, which are preliminary deposited on glass substrates. The thicknesses of the PANI films are in the range of 20 μm-80 μm. A displacement sensor with polyaniline film as an active material is designed and fabricated. The investigations showed that, on average, the AC resistance of the sensor decreases by 2 times and the capacitance accordingly increases by 1.6 times as the displacement changes in the range of 0 mm-0.5 mm. The polyaniline is the only active material of the displacement sensor. The resistance and capacitance of the PANI changes under the pressure of spring and elastic rubber, and this pressure is created by the downward movement of the micrometer.

关键词: polyaniline, displacement, sensor, resistance and capacitance

Abstract: This paper investigates the properties of displacement sensors based on polyaniline (PANI) films. About 1 wt% of PANI micropowder is mixed and stirred in a solution of 90 wt% water and 10 wt% alcohol at room temperature. The films of PANI are deposited from solution by drop-casting on Ag electrodes, which are preliminary deposited on glass substrates. The thicknesses of the PANI films are in the range of 20 μm-80 μm. A displacement sensor with polyaniline film as an active material is designed and fabricated. The investigations showed that, on average, the AC resistance of the sensor decreases by 2 times and the capacitance accordingly increases by 1.6 times as the displacement changes in the range of 0 mm-0.5 mm. The polyaniline is the only active material of the displacement sensor. The resistance and capacitance of the PANI changes under the pressure of spring and elastic rubber, and this pressure is created by the downward movement of the micrometer.

Key words: polyaniline, displacement, sensor, resistance and capacitance

中图分类号:  (Measurements common to several branches of physics and astronomy)

  • 06.30.-k
68.55.-a (Thin film structure and morphology) 81.15.-z (Methods of deposition of films and coatings; film growth and epitaxy)