• 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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Invited Lecture
Assistant Professor Dr.Sekine give an Invited talk at The Japan Institute of Electronics Packaging Kyusyu branch Meeting, 2018.

Result
A paper related to Assistant Professor Dr.Takeda, "Printed Organic Complementary Inverter with Single SAM Process Using a p-type D-A Polymer Semiconductor" was published by applied sciences.

Invited Lecture
October 19, Prof. Tokito give an Invited talk at Yonezawa kōgyō-kai Ibaraki branch general meeting. (Hotel Terrace the Square Hitachi, Ibaraki)

Presentation
September 18-21, We will give 4 oral and 3 poster presentations from our laboratory at The 79th JSAP Autumn Meeting 2018. (Nagoya Congress Center, Aichi)

Presentation
September 6-7, We will be presented 5 oral presentations at The MES 2018. (OSAKA University, Suita Campus)

Lecture
September 5, Associate Prof. Kumaki give a talk at "JOEM academy 2018" held at Yamagata University Faculty of Engineering 100th Anniversary Memorial Hall, Yonezawa.

Invited Lecture
August 24, Professor Tokito give an Invited talk at the Japanese Research Association for Organic Electronics Materials. (Morito Memorial Hall, Tokyo University of Science)

Lecture
August 7-9, Professor Tokito gave a Tutorial speak at the 2018 IEEE International Flexible Electronics Technology Conference (IEEE IFETC 2018), in Ottawa, Canada.

Events
July 25, Prof.Tokito gave an introduction of research, at the Yamagata University COI Symposium 2018, Yonezawa.

Events
July 23, Mr. Masanori Muroyama (Micro System Integration Center) gave a lecture as a Guest Speaker at The ROEL Lecture Session.

Funding
Assistant Professor Dr. Sekine (Research Representative) was awarded Nagamori Awards by Nagamori Foundation. Congratulation!

Result
A paper related to Kai SASAKI(D1),"Detection of Odorant Molecules in the Gaseous Phase Using α-, β-, and γ-Cyclodextrin Films on a Quartz Crystal Microbalance" was published by Technologies.

Events
July 5, Mr. Tetsuji Ito (AIST) gave a lecture as a Guest Speaker at The ROEL Lecture Session.

Presentation
June 20, D3 Student Shiwaku gave an oral presentation at at The isj Imaging Conference JAPAN 2018.(Nishi-Chiba Campus, Chiba University)

Invited Lecture
June 12, Professor Tokito gave an Invited talk at the Japan Association of Corporate Executives. (Marunouchi, Tokyo)

More NEWS    More RESEARCH RESULTS

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

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