Low-voltage otft-based H2sensor fabricated on vacuum tape

Bochang Li, P. T. Lai, Wing Man Tang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

A low-voltage hydrogen sensor based on pentacene organic thin-film transistor (OTFT) with Pd source and drain (S/D) electrodes is fabricated on vacuum tape with a maximum temperature of 200 °C. The flexible sensor shows a clear decrease in drain current when exposed to H2in air at room temperature. Owing to reduced carrier mobility and increased S/D series resistance (both induced by the expansion of the Pd electrodes after absorbing hydrogen), rapid and concentration-dependent response of the OTFT is realized at various H2concentrations ranging from 200 ppm to 15,000 ppm.
Original languageEnglish
Title of host publicationEDSSC 2017 - 13th IEEE International Conference on Electron Devices and Solid-State Circuits
PublisherIEEE
Pages1-2
Number of pages2
Volume2017-January
ISBN (Electronic)9781538629079
DOIs
Publication statusPublished - 1 Dec 2017
Event13th IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2017 - Zyxel Auditorium and Learning Resource Center, National Tsing Hua University, Hsinchu, Taiwan
Duration: 18 Oct 201720 Oct 2017

Conference

Conference13th IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2017
Country/TerritoryTaiwan
CityHsinchu
Period18/10/1720/10/17

Keywords

  • flexible electronics
  • H sensor 2
  • OTFT

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this