Fabrication of Wearable Transistor with All-Graphene Electrodes via Hot Pressing

Youn Kim, Jin Yong Hong, Young Pyo Jeon, Jung Bin Park, Cheol Jin Lee, Jea Uk Lee

Research output: Contribution to journalArticlepeer-review


Textile electronics are ideal for novel electronic devices owing to their flexibility, light weight, and wearability. In this work, wearable organic field-effect transistors (OFETs) with allgraphene electrodes, fabricated using hot pressing, are described. First, highly conductive and flexible electrodes consisting of a cotton textile substrate and electrochemically exfoliated graphene (EEG) were prepared via hot pressing. The EEG/textile electrodes exhibited a low sheet resistance of 1.3 Ω sq−1 and high flexibility; these were used as gate electrodes in the wearable OFETs. In addition, spray-coated EEG was also used as the source/drain (S/D) electrodes of the wearable OFETs, which recorded a sheet resistance of 14.8 Ω sq−1 after hot pressing. The wearable OFETs exhibited stable electrical performance, a field-effect mobility of 13.8 cm2 V−1 s−1, and an on–off current ratio of ~103 during 1000 cycles of bending. Consequently, the fabrication method for wearable transistors developed using textiles and hot-pressed graphene electrodes has potential applications in next-generation wearable devices.

Original languageEnglish
Article number2602
Issue number13
Publication statusPublished - 2022 Jul 1


  • electrode
  • graphene
  • hot pressing
  • textile
  • transistor

ASJC Scopus subject areas

  • Chemistry(all)
  • Polymers and Plastics


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