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Stability of humidity sensor based on carbon nanotubes at different frequencies

  • Zhengang Zhao
  • , Xiaowei Liu
  • , Xin Wang
  • , Tuo Li
  • , Wei Wang
  • Harbin Institute of Technology
  • Key Lab of the Ministry of Education for Process Control and Efficiency Egineering

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The structure, working principle and fabrication of a humidity sensor based on carbon nanotubes (CNTs) were presented. The sensor resistance was sensitive to humidity. Schrödinger equation associated to the potential barrier between two CNTs was set up and solved. The analysis results indicated that the fluctuation of sensor resistance was caused by instability of CNTs, and the testing frequencies can change the relationship between sensor resistance fluctuating and CNTs stability. According to the experiment results, the stability was related to testing frequencies, and the fluctuating range of the sensor resistance at the testing frequency of 500Hz is about 10 times of that at 100KHz.

Original languageEnglish
Title of host publication2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics and Laser Technology, RCSLPLT/ASOT 2010
Pages322-325
Number of pages4
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics and Laser Technology, RCSLPLT/ASOT 2010 - Harbin, China
Duration: 28 Jul 20101 Aug 2010

Publication series

Name2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics and Laser Technology, RCSLPLT/ASOT 2010

Conference

Conference2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics and Laser Technology, RCSLPLT/ASOT 2010
Country/TerritoryChina
CityHarbin
Period28/07/101/08/10

Keywords

  • Carbon nanotube
  • Humidity sensor
  • Schrödinger equation
  • Stability
  • Testing frequency

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