Printed nanomaterial-based flexible device sheet
Nanotechnology Congress & Expo
August 11-13, 2015 Frankfurt, Germany

Kuniharu Takei

Scientific Tracks Abstracts: J Nanomed Nanotechnol

Abstract:

Flexible electronics is of great interest in the next class of devices for wearable, human-interactive, and prosthesis/robotic applications. In fact, many efforts for the flexible devices using organic and/or inorganic materials have been conducted by developing fabrication methods and flexible materials. The important requirements to realize practical flexible and wearable devices are (1) high performance, (2) low-cost, (3) low power consumption, (4) system integration, and (5) comfortability. Our research focuses on the achievement of above requirements using a printing method of inorganic nanomaterials onto a flexible substrate. In this talk, mainly printed sensor and logic circuitry on a flexible substrate are discussed. For printed sensors, strain, temperature, and ultraviolet light sensors are introduced for the applications of wearable health monitoring and robotic devices. For a logic circuitry, complementary metal oxide semiconductor (CMOS) circuitry is demonstrated with relatively high voltage gain and mobility. However, it should be noted that the flexible CMOS circuitry was fabricated by using a standard semiconductor infrastructures because the technique to obtain fine patterning and high quality of metal, semiconductor, and insulator materials via printing methods is limited. Finally, some proof-of-concept devices based on these inorganic-based flexible devices are introduced.

Biography :

Kuniharu Takei received a PhD in Electrical Engineering from Toyohashi University of Technology in Japan in 2009. After working as a Postdoctoral fellow at the University of California, Berkeley, he joined the faculty of Osaka Prefecture University in Japan, where he is currently an Assistant Professor of the Department of Physics and Electronics. He has been assigned as an Editorial Board Member of Scientific Reports and an Associate Editor of Nanoscale Research Letters. He is one of MIT Technology Review 35 Innovators under 35 in 2013.