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Fabrication of Wearable Transistor with All-Graphene Electrodes via Hot Pressing
| Content Provider | MDPI |
|---|---|
| Author | Kim, Youn Hong, Jin-Yong Jeon, Young-Pyo Park, Jung Bin Lee, Cheol Jin Lee, Jea Uk |
| Copyright Year | 2022 |
| Description | 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 all-graphene 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 $cm^{2}$ $V^{−1}$ $s^{−1}$, and an on–off current ratio of $~10^{3}$ 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. |
| Starting Page | 2602 |
| e-ISSN | 20734360 |
| DOI | 10.3390/polym14132602 |
| Journal | Polymers |
| Issue Number | 13 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-06-27 |
| Access Restriction | Open |
| Subject Keyword | Polymers Manufacturing Engineering Textile Graphene Electrode Hot Pressing Transistor |
| Content Type | Text |
| Resource Type | Article |
