TOPIC Skin-like stretchable sensors with organic devices 
AREA Microelectronic Technologies & Devices  
SPEAKER Professor Takao Someya, The University of Tokyo 
DATE 31 October 2016, Monday 
TIME 3pm to 4pm 
VENUE E5-03-19, Engineering Block E5, Faculty of Engineering, NUS  
FEES No Charge 

We present recent progress of ultraflexible organic thin-film devices such as organic thin-film transistors (OTFTs), organic photovoltaic cells (OPVs), and organic light-emitting diodes (OLEDs) that are manufactured on ultrathin plastic film with the thickness of 1 ėm. Ultraflexible organic transistor integrated circuits (ICs) exhibit extraordinary robustness in spite of being superthin. The electrical properties and mechanical performance of the transistor ICs were practically unchanged even when squeezed to a bending radius of 5 ėm, dipped in physiological saline, or stretched to up to double their original size. These organic transistor ICs have been utilized to develop a flexible touch sensor system. Then, we have demonstrated OPV and OLED on 1 ėm thick PEN. Moreover, the issues and the future prospect of flexible organic devices will be addressed. We will also describe emerging applications using ultraflexible and stretchable electronic systems in the fields of wearable and biomedical electronics. 

Takao Someya received the Ph.D. degree in electrical engineering from the University of Tokyo in 1997. Since 2009, he has been a professor of Department of Electrical and Electronic Engineering, The University of Tokyo. From 2001 to 2003, he worked at the Nanocenter (NSEC) of Columbia University and Bell Labs, Lucent Technologies, as a Visiting Scholar. He has been appointed as a Visiting Professor under the Globalfoundries Singapore Pte Ltd Professorship in the Department of Electrical and Computer Engineering, National University of Singapore, since September 2016. His current research interests include organic transistors, flexible electronics, plastic integrated circuits, large-area sensors, and plastic actuators. Prof. Someya has received a number of awards, a Japan Society for the Promotion of Science (JSPS) Prize, the 1st Prize of the newly-established German Innovation Award, 2004 IEEE/ISSCC Sugano Award, and 2009 IEEE Paul Rappaport Award. He was a global scholar of Princeton University, a member of the board of directors of the U.S. Materials Research Society (2009-2011), and an IEEE/EDS Distinguished Lecturer since 2005. Prof. Someya’s “large-area sensor array” electronic thin film was featured in Time Magazine as one of its “Best Inventions of 2005” in its November 21st issue. 


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