Seminar & Colloquium
[세미나: 6월 16일(금), 오후 2시] Prof. Jun Takeya, The University of Tokyo
Title
Organic wisdom: low dimensional semiconductors and devices for smart sensing networks
Speaker
Prof. Jun Takeya, The University of Tokyo
Career Summary
- 1989 Graduated from Faculty of Science (University of Tokyo)
- 1991 Research Scientist (Central Research Institute of Electric Power Industry)
- 2001 Received Ph.D. in Physics from the University of Tokyo
- 2001 Visiting Researcher (ETH, Zurich)
- 2006 Associate Professor (Osaka University)
- 2010 Professor (Osaka University)
- 2013 Professor (University of Tokyo)
| Date | Friday, June, 16th, 2023
| Time | 14:00 ~
| Venue | 33-228 (Haedong Auditorium)
온라인강의 (https://snu-ac-kr.zoom.us/j/94321931662?pwd=OGpnc0p3OFovSVg5VDFtTGlMZVV5UT09)
ID: 943 2193 1662
PW: 230616
[Abstract]
An expected mission of organic semiconductors has been to form ultra-low-cost platforms for analogue and digital circuits and to supply abundant devices for smart societies with IoT sensing networks. Since each sensing device requires not only primitive components such as thermistor but various circuits like amplifiers, AD converters, signal processors, and circuits for wireless communication, the prices are indeed too high to prevail, say trillions of such sensing devices. The present seminar focuses on the present stage of the challenge of developing the organic ultra-low-cost film-shaped sensing devices and of gradually spreading them to the market in a commercial scheme.
The first half of the presentation covers fundamental development of materials and integrated circuits. The use of solution-crystalized organic single crystals opened the way to high-performance and low-cost production of integrated circuits with more than 1,000 transistors at present. With the mobility exceeding 10 cm2/Vs, the operation speed is reaching 100 MHz. Also, microwave power is supplied to the circuits with sufficient power because of recently developed ultra-fast diode circuits. The fundamental physics of coherent electronic transport, which realizes the low-cost high-performance circuits in the non-covalent bonded organic molecules, will be also mentioned.
The second half is devoted to application of the above material science to practical usage. Temperature, vibration and location sensors with organic circuits and/or sensors are already commercialized for small-scale practical use. Furthermore, since impact of numbers of such devices exponentially increases combination data, connected multiple sensors enables large-scale machine leaning to provide unexperienced advantages, ranging from reliable analysis with low noise and error-free data processing to broad-range services of connecting humans and society. Some examples are already starting to be introduced, wo that the society of “organic wisdom” is approaching.
| Host | 이태우 교수 (02-880-2542)