kimhyoungjun Kang Tae-Hyung YI, HYUNJUNG Jung Ah Lim 2024-01-12T04:38:13Z 2024-01-12T04:38:13Z 2021-09-29 2019-12 - https://pubs.kist.re.kr/handle/201004/78290 With the extensive research of electronic textiles for wearable devices, fibriform organic field-effect transistor is a one of the key components for organizing the electronic circuit into the fabric by weaving the fiber. However, fiber type field-effect transistors have disadvantage of channel dimension since the resolution of printing or deposition techniques on microfibers is primarily restricted by the dimension of the microfibers. Here, we report a new strategy to improve the performance of fibriform OFET where the channel dimension can be readily controllable. Key technology of this work is that single-walled carbon nanotube source and drain (S/D) electrodes with desirable geometry are printed at hydrogel substrate first, then directly transferred to the semiconductor-insulator layer coated Au microfiber. Fine geometry of CNT electrodes was successfully transferred to the microfiber by special rolling process and resulting transistors with wrapped CNT S/D electrodes exhibited a high on/off ratio of ~ 105 and good field effect mobility of 0.73 cm2 V− 1 s− 1. It was confirmed that the fibriform transistors demonstrated on the flexible polyurethane thread also exhibited good electrical performance which was maintained even after bending deformation at different bending radius. English MRS Channel-dimension controllable fibriform organic field-effect transistors by hydrogel-supported transferring of printed CNT microelectrodes. Conference 1 2019 MRS Fall meeting 2019 MRS Fall meeting US Boston 2019-12-01