• 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.    top-leftto-bottom
  • 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.    top-leftto-bottom
  • 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.    top-leftto-bottom
  • 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.    top-leftto-bottom
  • 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.    top-leftto-bottom
  • 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.    top-leftto-bottom
New papers (For more information click on the image)
Journal of Physics D: Applied Physics 52 (2019) 444005 (8pp)
IEEE ELECTRON DEVICE LETTERS 40(8), pp 1277- 1280, (2019)
Scientific Reports, 9, 10102, (2019)
Technologies 2019, 7(3), 48
Sensors and Actuators A: Physical,295,93-98(2019)
Sensors and Materials,31, 4(1), 1205-1213(2019)
Award
Aug. 20, 2019
D2 student, Kai Sasaki, was awarded with Student Presentation Award of 10th International Conference on Molecular Electronics & BioElectronics, 2019. Congratulations!
Others
May 08, 2019
Assistant Professor Sekine's paper was selected as one of the top 100 read materials science papers for Scientific Reports in 2018. Congratulation!
Award
Mar. 18, 2019
M2 student, Mayu Uematsu, was awarded Poster Award for The 66th Japan Society of Applied Physics, 2019. Congratulations!

Invited Lecture
Professor Tokito gave an invited talk at Electronics Exchange Meeting of Electronic Information Technology Subcommittee (Chiyoda ward, Tokyo) held by Japan Association for Chemical Innovation (JACI) on Oct.11.

Member
Mr.Ashveer Stott has joined our laboratory as an International Student.

Member
Ms.Varvara Salonikidou has joined our laboratory as an International Student.

Invited Lecture
Professor Tokito will give an invited talk at The 98th Anniversary Ceremony of Yonezawa Medical Center. (2nd floor lecture hall of the Medical Center) on Oct 24.

Invited Lecture
Professor Tokito will give an invited talk at Japan MID Association (Institute of Industrial Science. The University of Tokyo) on Nov.1

Events
Mr.Tomoyoshi Sato (President CEO&CTO of AXiON Research Inc.) gave a lecture as a Guest Speaker at The 169th ROEL Lecture Session on Oct. 3.

Result
A co-authored paper by Professor Tokito, titled “Compact modelling and SPICE simulation for three-dimensional, inkjet-printed organic transistors, inverters and ring oscillators” was published in Journal of Physics D: Applied Physics.

Result
A co-authored paper by Professor Tokito, titled “Static and Dynamic Response Comparison of Printed, Single- and Dual-Gate 3-D Complementary Organic TFT Inverters” was published in IEEE ELECTRON DEVICE LETTERS.

Award
Assitant Professor Tomohito Sekine received MES 2018 Research Encouragement Award and its plaque at MES 2019. Congratulations!

Press
On Sep.18 an article related to Professor Hiroyuki FURUSAWA titled "Easy measurement of molecular weight" was published in the local page of Asahi newspaper.

Member
Mr.Takashi Komori, Mr.Ikuo Sugimoto, Mr.Syunichi Hagiwara, Mr.Takehiro Mitsuda, Mr.Ryou Sugano, Mr.Yoshitada Ozaki, Mr.Minoru Shibazaki and Mr.Itaru Watanabe have joined our laboratory as Visiting Researchers.

Invited Lecture
Professor Tokito gave an invited talk at Sensor・Actuator・Micro-nano / week 2019 Symposium (Tokyo Big Sight) on Sep 11.

Member
Ms.Chia-Chi Lin has joined our laboratory as an International Student.

Events
Professor Masaya Nogi (Osaka University) gave a lecture as a Guest Speaker at The 168th ROEL Lecture Session on Sep. 4.

Invited Lecture
Associate Professor Nagamine gave an invited talk at 7th Bio-related chemistry symposium Young Forum (Tohoku Univ.Katahira Campus Sendai City Miyagi Pref.) on Sep.3.

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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