Kim, Soo Jin Kim, Hyoungjun Ahn, Jongtae Hwang, Do Kyung Ju, Hyunsu Park, Min-Chul Yang, Hoichang Kim, Se Hyun Jang, Ho Won Lim, Jung Ah 2024-01-19T20:01:40Z 2024-01-19T20:01:40Z 2021-09-02 2019-06 0935-9648 https://pubs.kist.re.kr/handle/201004/119938 Herein, a unique device architecture is proposed for fibrous organic transistors based on a double-stranded assembly of electrode microfibers for electronic textile applications. A key feature of this work is that the semiconductor channel of the fiber transistor comprises a twist assembly of the source and drain electrode microfibers that are coated by an organic semiconductor. This architecture not only allows the channel dimension of the device to be readily controlled by varying the thickness of the semiconductor layer and the twisted length of the two electrode microfibers, but also passivates the device without affecting interconnections with other electrical components. It is found that the control of crystalline nanostructure of the semiconductor layer is critical for improving both the production yield of the device and the charge-carrier transport in the device. The resulting fibrous organic transistors show a high output current of over −5 mA at a low operation voltage of −1.3 V and a good on/off current ratio of 105. The device performance is maintained after repeated bending deformation and washing with a strong detergent solution. Application of the fibrous organic transistors to switch current-driven LED devices and detection of electrocardiography signals from a human body are demonstrated. English WILEY-V C H VERLAG GMBH A New Architecture for Fibrous Organic Transistors Based on a Double-Stranded Assembly of Electrode Microfibers for Electronic Textile Applications Article 10.1002/adma.201900564 1 ADVANCED MATERIALS, v.31, no.23 ADVANCED MATERIALS 31 23 N scie scopus 000474087100022 2-s2.0-85064475729 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article FIELD-EFFECT TRANSISTORS WEARABLE ELECTRONICS CHARGE-TRANSPORT LOW-VOLTAGE THIN-FILMS FIBER MORPHOLOGY HARDNESS low-voltage operation organic thin-film transistors wash-resistance electronic textiles fiber electronic devices healthcare monitoring