Takao Someya

The University of Tokyo

Ultraflexible and stretchable organic thin-film devices for biomedical applications
Abstract No. : PL_02
Date & Time : Dec. 7 (Mon), 13:50-14:35
Place : Ballroom 1
Name : Takao Someya
Affiliation : University of Tokyo
Chair : Han Woong Yeom (IBS, POSTECH)
As one of the promising applications of flexible and stretchable electronics, biomedical sensors have attracted much attention recently. Sensors and electronic circuits for health-monitoring applications have been fabricated using silicon and other rigid electronic materials. In order to minimize the discomfort of wearing rigid sensors, it is highly desirable to use soft electronic materials particularly for devices that come directly into contact with the skin and/or biological tissues. In this regard, electronics manufactured on thin polymeric films are very attractive. In general, a thinner substrate provides better mechanical flexibility. However, directly manufacturing sensors or electronic circuits on ultrathin polymeric films with thicknesses of several micrometers or less is a difficult task when conventional semiconductor processes are used. Here we report recent progresses of ultrathin, ultra-lightweight, ultraflexible, organic devices on polymeric films with a thickness of only 1 μm. The ultrathin organic devices are used to fabricate human-machine interfaces such as touch sensors and wearable electronic systems such as an electromyogram (EMG) measurement sheet with a two-dimensional array of organic amplifiers.