Active matrix near-infrared sensing system using printing technologies

• Project/Area Number: 25630137
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: Osaka University (2014); The University of Tokyo (2013)
• Principal Investigator: SEKITANI Tsuyoshi 大阪大学, 産業科学研究所, 教授 (80372407)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 有機トランジスタ / フレキシブルエレクトロニクス / 有機集積回路 / プリンテッドエレクトロニクス / 大面積センサ

Outline of Final Research Achievements

We have successfully demonstrated to manufacture active matrix near-infrared spectroscopy sensing system in the combination of all-printed transistors, organic light-emitting diodes (LEDs), and organic photo-detectors. The organic transistors manufactured using screen printing technologies exhibited mobility greater than 0.5 cm2/Vs. Furthermore, we have developed the new process technique that can make rough surface of printed electrodes smooth, whose surface roughness is smaller than 5nm after the process. This process technique led to high performance of printed organic LEDs and photodetectors even on the screen-printed electrodes. Taking advantages of the above technologies including process, materials, and device physics and structures, we have successfully realized to show the feasibility of the sheet-type active matrix sensing sisyem.

Research Products

• [Journal Article] An Imperceptible Plastic Electronic Wrap (2015)
  • Author(s): Michael Drack, Ingrid Graz, Tsuyoshi Sekitani, Takao Someya, Martin Kaltenbrunner, Siegfried Bauer
  • Journal Title: Advanced Materials Volume: 27 Pages: 34-40
  • Peer Reviewed / Open Access
• [Journal Article] Imperceptible magnetoelectronics (2015)
  • Author(s): Michael Melzer, Martin Kaltenbrunner, Denys Makarov, Dmitriy Karnaushenko, Daniil Karnaushenko, Tsuyoshi Sekitani, Takao Someya & Oliver G. Schmidt
  • Journal Title: Nature Communications Volume: 6 Pages: 6080-6080
  • Peer Reviewed / Open Access
• [Journal Article] Ultrathin, Highly Flexible, and Stretch-Compatible PLEDs (2013)
  • Author(s): Matthew S. White, Martin Kaltenbrunner, Eric D. Głowacki, Kateryna Gutnichenko, Gerald Kettlgruber, Ingrid Graz, Safae Aazou, Christoph Ulbricht, Daniel A. M. Egbe, Matei C. Miron, Zoltan Major, Markus C. Scharber, Tsuyoshi Sekitani, Takao Someya, Siegfried Bauer, and Niyazi Serdar Sariciftci
  • Journal Title: Nature Photonics Volume: 7 Pages: 811-816
  • Peer Reviewed
• [Journal Article] Breakthroughs in Photonics 2012: Large-Area, Ultra-Thin Photonics (2013)
  • Author(s): Martin Kaltenbrunner, Matthew S. White, Tsuyoshi Sekitani, Niyazi S. Sariciftci, Siegfried Bauer, and Takao Someya
  • Journal Title: IEEE Photonics Journal Volume: 5 Pages: 700805-700805
  • Peer Reviewed
• [Presentation] 65.Ultra-flexible Organic LEDs and Electronic Systems for Imperceptible Medical Sensors (2014)
  • Author(s): Tsuyoshi Sekitani
  • Organizer: OLEDs World Summit2014
  • Place of Presentation: The Claremont Hotel Club and Spa, Berkeley, CA, USA
  • Year and Date: 2014-09-16 – 2014-09-18
  • Invited