PEDOT:PSS-based temperature-detection thread for wearable devices

Jin Woo Lee, Dong Cheul Han, Han Jae Shin, Se Hyeok Yeom, Byeong Kwon Ju, Wanghoon Lee

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


In this research, we developed a wearable temperature-sensing element by dip dyeing threads in poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) (p-type conducting polymer) solution. The PEDOT:PSS was used to dye the textile and it exhibited negative temperature coefficient characteristics in which the resistance decreases as the temperature increases. The fabricated temperature-detection thread achieved a sensitivity of 167.1 Ω/C with 99.8% linearity in the temperature range of −50C to 80C. We anticipate that temperature sensors that apply our technology will be made as stitch-or textile-type for wearable devices, and they will be widely adopted for different applications such as in fitness, leisure, healthcare, medical treatment, infotainment, industry, and military applications, among others.

Original languageEnglish
Article number2996
JournalSensors (Switzerland)
Issue number9
Publication statusPublished - 2018 Sept 7

Bibliographical note

Funding Information:
Funding: This research was supported by a grant (#365) from Gumi Core Components and Materials Technology Development Program of the Gumi Regional Government.

Publisher Copyright:
© 2018 by the authors. Licensee MDPI, Basel, Switzerland.


  • Temperature-detection
  • Thread
  • Wearable devices

ASJC Scopus subject areas

  • Analytical Chemistry
  • Information Systems
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering


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