[AMD4] Emerging TFTs

[AMD4-2(Invited)] Printing of 3D Electronic Circuits and Organic Thin-Film Transistors

*Takeo Minari¹, Qingqing Sun¹, Wanli Li¹, Xuying Liu², Masayuki Kanehara³ (1. National Institute for Materials Science (NIMS) (Japan), 2. Zhengzhou University (China), 3. C-INK Co., Ltd. (Japan))

Keywords:Printed Electronics, Organic thin-film transistors, Metal nanoparticles

We propose a large-scale fabrication method of electronic devices based on solution-processed coating and printing. This method relies on bottom-up printing processes using soluble metal nanoparticles and organic semiconductors, resulting in thin-film electronic devices to be printed at room temperature without application of heat. We successfully fabricated high-performance organic thin-film transistors on plastic and paper substrates. In addition, the printing technique with 1-micron line width and space was also achieved. Our fabrication method is very promising for low-cost fabrication of high-resolution flexible electronics.