| 초록 |
Fiber-shaped electronic devices for E-textile satisfy light weight, flexibility, portability in clothes and comfort to wear. Especially, organic thin-film transistors (OTFTs) are essential component which works integrated circuit based on E-textile. In this study, we have demonstrated double-stranded assembly of twisted electrodes for fibriform OTFTs. The new configuration of fibriform OTFTs showed good on/off ratio of 105 and output current of 10 mA at -1.5 V. In the new structure of fibriform OTFTs, channel length and width, could be easily modified by thickness of semiconductor film and length of fiber, respectively. We found that the mechanical durability and transconductance of the device were enhanced by controlling molecular orientation of nanostructured organic semiconductor layer coated on electrodes. The device maintained its good properties under bending and washing process. Finally, it showed the possibility of the wearable sensor for detecting biosignals. |
