• Organic Semiconductor Materials

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  • Flexible Devices with Printed Organic and Nanoparticle Materials

    We have developed flexible electronic devices on ultrathin (< 3 µm) plastic films by employing advanced printing technologies together with organic semiconductors, ferroelectric polymers, and metal nanoparticle inks. Our objective is to realize patch-type healthcare devices using the ultra-flexible sensor devices.
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  • Development of the OFET-Based Biosensors

    We have developed printed OFET-based biosensors that are fully flexible, and are currently striving to apply these sensors in the non-invasive detection healthcare biomarkers in externally secreted bodily fluids including sweat and saliva.
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  • Flexible and Stretchable Printed Physical Sensors

    We are developing flexible or stretchable physical sensors that employ ferroelectric polymers and stretchable paste inks applied using conventional printing methods. Our aim to utilize these devices in robot skins, healthcare, tactile sensors and other novel applications.
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  • Flexible Hybrid Electronics

    Organic thermal sensors and stacked interconnects are printed on plastic film substrates using conventional screen printing, and to which thin, small Si-LSI chips are mounted. This hybrid sensor combines the flexibility of organic electronics with the highly functional of silicon electronics. Using these devices, we have succeeded in measuring skin temperature and monitoring the temperature of commercial products, while wirelessly transmitting the data.
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  • Reverse Offset Printing

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  • 3D-Printed Electronics

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  • Development of the Metal Nanoparticle Ink

    We are developing metal nanoparticle ink that can be sintered at low-temperature to create high-performance printed TFT devices. We achieved a reduction of the energy barrier between semiconductor and electrodes by improving the nanoparticle design and ink formulation technology.
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  • Development of the Large Area Printing Processes

    We have developed the roll-to-roll inkjet printing process technology that can be applied to the fabrication of large-area, high-definition electronic circuits. With this technology, TFT arrays and sensor devices can be continuously fabricated directly on the wide-format film rolls.
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Award
M2 student, Mayu Uematsu, was awarded Poster Award for The 66th Japan Society of Applied Physics, 2019. Congratulations!

Funding
Research subjects related to Assistant Professor Sekine was adopted by NSK Foundation for Advancement of Mechatronics.

Invited Lecture
May 29, Professor Tokito will give an invited talk at The 68th SPSJ Annual Meeting.(Osaka International Convention Center)

Events
March 28, Professor Kouhei Ohnishi (Keio University Haptics Research Center) will give a lecture as a Guest Speaker at The 164th ROEL Lecture Session.

Invited Lecture
March 27, Associate Professor Nagamine will give an invited talk at The 86th ECSJ Spring Meeting.(Kyoto University Yoshida Campus)

Presentation
March 19-22, Mr.Takaoka (Project Researcher) and Mr.Okuyama (Project Researcher) will give oral presentations at The IEICE General Meeting,2019. (Waseda University, Nishiwaseda Campus)

Presentation
March 9-12, We gave 4 oral presentations, and 6 poster presentations from our laboratory at The 66th JSAP Spring Meeting,2019. (Tokyo Institute of Technology, Ookayama Campus)

Result
Assistent Professor Dr.Sekine's paper was selected as a "Front Cover" Picture on ACS Applied Electronic Materials(Volume 1, Issue 2, February 26, 2019).

Award
Kohei Miyazawa, a 4th-year student, was awarded the “Best Presentation” for his graduation research presentation. Congratulations!

Result
A paper related to Dr.Yoshida(Project Researcher), titled "A push-mode piezo inkjet equivalent circuit model enhanced by diaphragm displacement measurements" was online released on AIP Advances.

Funding
Research subjects related to Associate Professor Nagamine was adopted by the Institute for Fermentation, Osaka (IFO).

Funding
Research subjects related to Associate Professor Nagamine was adopted by The Foundation for Technology Promotion of Electronic Circuit Board.

Funding
Research subjects related to Assistant Professor Sekine was adopted by The Foundation for Technology Promotion of Electronic Circuit Board.

Result
A paper related to Dr.Yoshida(Project Researcher), titled "A push-mode piezo inkjet equivalent circuit model enhanced by diaphragm displacement measurements" was accepted by AIP Advances.

News
Mr.Yasushi Hori gave a lecture as a Guest Speaker at The 163rd ROEL Lecture Session.

More NEWS    More RESEARCH RESULTS

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【Tokito, Office】
4-3-16 Jonan, Yonezawa, Yamagata
992-8510, JAPAN
YAMAGATA UNIVERSITY
Research Center for Organic Electronics (Bldg. 10)
Phone:+81-238-26-3725
Fax:+81-238-26-3788

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