ビッグデータ向け環境センサの基盤を支える有機アナログ集積回路

2016 Fiscal Year Annual Research Report

• Project/Area Number: 15F15062
• Research Institution: The University of Tokyo
• Principal Investigator: 染谷 隆夫 東京大学, 大学院工学系研究科(工学部), 教授 (90292755)
• Co-Investigator(Kenkyū-buntansha): NAWROCKI ROBERT 東京大学, 大学院工学系研究科(工学部), 外国人特別研究員
• Project Period (FY): 2015-10-09 – 2018-03-31
• Keywords: e-skin / organic electronics / flexible electronics / biocompatible / organic bioelectronics

Outline of Annual Research Achievements

Following the successful development and fabrication of world’s thinnest organic electronics e-skin, fit with organic transistors and tactile sensors, the research progressed towards expanding it with the aim of achieving system’s integration at the unprecedented thickness and flexibility. Specifically, organic electronic CMOS and Pseudo-CMOS inverters / amplifiers were demonstrated. To fit with the ultra-thin electronics, matching ultra-thin biomarker sensors were developed and integrated. The system was shown to successfully detect electromyogram (EMG), and electrocardiogram (ECG). The two main advantages of these ultrathin sensors, as compared to today’s commercial counterparts, is their imperceptibleness as well as motion-artefact-free operation.

Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

The progress of the current research was delayed by the discovery of the motion-artefact-free operation of the sensors. Initially the goal was to develop a simple biometric sensor. However, the sensor showed a great promise, which needed to be investigated. And it is these investigations that resulted in delay of the overall progress. The result should be another journal publication.

Strategy for Future Research Activity

In the remaining six months of the JSPS fellowship, the goal is to integrate the developed ultra-thin biometric sensors with ultrathin electronics, for the purposes of on-skin detection and amplification of the EMG. This will require development and fabrication, using thin-film organic electronics differential amplifier integrated with sensor.

Research Products

• [Journal Article] Enhancement of Closed-Loop Gain of Organic Amplifiers Using Double Gate Structures (2016)
  • Author(s): Lee, S., Reuveny, A., Matsuhisa, N., Nawrocki, R.A., Yokota, T., Someya, T.
  • Journal Title: IEEE Electron Device Letters Volume: 37(6) Pages: 770-773
  • DOI: 10.1109/LED.2016.2554159
  • Peer Reviewed / Open Access
• [Presentation] Sub-300-nm thin-film sensors for EMG and ECG monitoring (2017)
  • Author(s): Nawrocki, R.A., Jin, H., Matsuhisa, N., Yokota, T., Someya, T.
  • Organizer: International Winterschool on Bioelectronics (BioEl)
  • Place of Presentation: Hotel Sonnalp (Kirchberg in Tirol, Austria)
  • Year and Date: 2017-03-10 – 2017-03-17
  • Int'l Joint Research
• [Presentation] 300-nm High Gain Multi-Stage Organic CMOS Inverters (2016)
  • Author(s): Nawrocki, R.A., Lee, S., Matsuhisa, N., Yokota, T., Someya, T.
  • Organizer: Solid State Devices and Materials (SSDM)
  • Place of Presentation: Tsukuba International Congress Center (Tsukuba, Japan)
  • Year and Date: 2016-09-26 – 2016-09-29
  • Int'l Joint Research
• [Presentation] Ultra-thin, ultra-flexible, ultra-conformable electronics for healthcare, biomedical applications (2016)
  • Author(s): Nawrocki, R.A., Lee, S., Matsuhisa, N., Yokota, T., Someya, T.
  • Organizer: European Materials Research Society (E-MRS)
  • Place of Presentation: Warsaw University of Technology (Warsaw, Poland)
  • Year and Date: 2016-09-19 – 2016-09-22
  • Int'l Joint Research / Invited
• [Remarks] 東京大学工学系研究科 染谷研究室 有機トランジスタ・ラボ
  • URL: http://www.ntech.t.u-tokyo.ac.jp/index.html