Organic strain sensor comprised of heptazole-based thin film transistor and Schottky diode

Youngsuk Cho, Pyo Jin Jeon, Jin Sung Kim, Seongil Im

Research output: Contribution to journalArticle

5 Citations (Scopus)


A strain sensor presenting a voltage signal has been studied, as comprised of an organic thin-film transistor (OTFT) and an organic Schottky diode which are connected in series to sensitively measure elastic tensile strain (up to ∼0.64%, bending radius of ∼4 mm). We chose organic heptazole TFT as a sensor component and large area heptazole Schottky diode as a strain-insensitive load incorporated into this strain sensor gauge circuit, because our heptazole TFTs have shown anisotropic response to the elastic tensile strain. Our organic strain sensor exhibits a decent amount of gauge factor (GF > 1.51) performance in both static and dynamic ways.

Original languageEnglish
Pages (from-to)24-29
Number of pages6
JournalOrganic Electronics
Publication statusPublished - 2017 Jan 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this