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High performance humidity sensor based on V0.5Sn0.5Se2 ternary alloy

  • Chetan K. ZankatEmail author
  • Pratik Pataniya
  • Mohit Tannarana
  • G. K. Solanki
  • K. D. Patel
  • V. M. Pathak
Article

Abstract

Recently, the humidity sensors have captivated huge attention for making human life more comfortable and to diagnose several diseases. Here, we reported the excellent humidity responsiveness of V0.5Sn0.5Se2 ternary alloy for human breath monitoring and touchless positioning interface. The resistive sensor based on direct vapour transport grown bulk crystal of V0.5Sn0.5Se2 ternary alloy is fabricated and explored for its static response in different humidity levels ranging from 20 to 90%. The sensor showed excellent dynamic switching characteristics between relative humidity of 20% and 90% with responsivity of 6.78%, response time of 3.2 s and recovery time of 2.3 s. Subsequently, the sensor is exploited for giant responsiveness for human breath monitoring and words recognitions. The sensor exhibited quite distinct response towards different words namely, “Pratik”, “Chetan” and “Mohit”. Besides, novel touch-less positioning interface is explained with respect to humidity variation. Overall, the results advocate development of resistive sensors for intended humidity, biomedical as well as for intelligent touch-less sensing applications.

Notes

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Chetan K. Zankat
    • 1
    Email author
  • Pratik Pataniya
    • 1
  • Mohit Tannarana
    • 1
  • G. K. Solanki
    • 1
  • K. D. Patel
    • 1
  • V. M. Pathak
    • 1
  1. 1.Department of PhysicsSardar Patel UniversityVallabh VidyanagarIndia

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