Development of Printable Functional Materials and Organic DeviceDevelopment of Printable Functional Materials and Organic Device83Interface Design of Functional NanoparticlePrintingProcessSheet Type DevicePrintedElectronicsIllustrationWe develop various practical technologies for flexible organic electronics by collaborations with the concept of “Needs First!”, aiming at practical applications.Flexible OLEDsDemonstration samplesFunctional materialsH. Nakada Dr. M. KodenT. FurukawaDr. T. YukiContent：ContentFlexible organic electronic is one of the most important key Flexible organic electronic is one of the most important technologies for new life-styles in near future, involving flexible key technologies for new life-styles in near future, involving OLED (Organic Light Emitting Diode) display, flexible OLED lighting, flexible OPV (Organic Photovoltaic), etc.flexible OLED (Organic Light Emitting Diode) display, flexible We are collaborating with industrial companies for developing key OLED lighting, flexible OPV (Organic Photovoltaic), etc.technologies for flexible organic electronics, based on the concept of We are collaborating with industrial companies for “Needs First!”.developing key technologies for flexible organic electronics, based on the concept of “Needs First!”. The main technologies are; The main technologies are; * Flexible substrates for organic electronics(ultra-thin glass, stainless steel foil, plastic film)* Flexible substrates for organic electronics* Barrier and flexible encapsulating technologies (ultra-thin glass, stainless steel foil, plastic film)* Printing and3Dmoldingelectrodes* Roll to roll (R2R) technologies* Barrier and flexible encapsulating technologies* Printing and 3D molding electrodesAppealing point：* Roll to roll (R2R) technologies1) Company's needs are first priority.2) Substantial experience as the leaders of private companies.Special objectives3) Demonstration samples, evaluation support, etc.1) Company's needs are first priority.2) Substantial experience as the leaders of private companies.Yamagata University 3) Demonstration samples, evaluation support, etc.Graduate Schoolof Science and Engineering Research Interest ：Organic ElectronicsYamagata University Innovation Center for Organic ElectronicsE-mail ：nakada@yz.yamagata-u.ac.jpResearch InterestOrganic Electronicskoden@yz.yamagata-u.ac.jpE-mail ・ nakada@yz.yamagata-u.ac.jpTel ：+81-238-29-0575 koden@yz.yamagata-u.ac.jpFax ：+81-238-29-0569Tel ・ +81-238-29-0575 Fax ・ +81-238-29-0569HP ：http://inoel.yz.yamagata-u.ac.jp/F-consortium/home.htmlHP・ http://inoel.yz.yamagata-u.ac.jp/F-consortium/home.htmlContent： The metal nanoparticle ink is used in printed electronics as Themetalnanoparticleinkisusedinprintedelectronicsasaa typical conductive materials. In addition to dispersion typicalconductivematerials.Inadditiontodispersionstability,stability, various functions such as printability (viscosity, variousfunctionssuchasprintability(viscosity,surfaceenergy)andsurface energy) and electrical characteristics (resistivity, electricalcharacteristics(resistivity,migrationresistance,energymigration resistance, energy level) are required for the metal level)arerequiredforthemetalnanoparticleink.Inordertorealizenanoparticle ink. In order to realize high-performance device characteristics using printing process, it is essential to high-performancedevicecharacteristicsusingprintingprocess,itiscombine materials, process, and device technologies and essentialtocombinematerials,process,anddevicetechnologiesandincorporate them into material design. Various interfaces incorporatethemintomaterialdesign.Variousinterfacesplayaveryplay a very important role in the development of these importantroleinthedevelopmentofthesematerials.materials. Ourgroupisconductingresearchoninterfacedesigntechnologyof Our group is conducting research on interface design metalnanoparticleinkforaddingandcontrollingfunctionsfromthetechnology of metal nanoparticle ink for adding and viewpointofprintingprocessanddevicetechnology.controlling functions from the viewpoint of printing process Appealingpoint：and device technology. Weaimtocontributetosocietythroughcollaborationwithindustries.Special objectivesPrinting Process,Flexible DevicesE-mail：d_kumaki@yz.yamagata-u.ac.jpTel：+81-238-26-3290E-mail ・ d_kumaki@yz.yamagata-u.ac.jpFax：+81-238-26-3788Tel ・ +81-238-26-3290 HP：https://tokitolabo.yz.yamagata-u.ac.jp/Fax ・ +81-238-26-3788HP・https://tokitolabo.yz.yamagata-u.ac.jp/Flexible DevicesH. NakadaDr. M. KodenT. FurukawaDr. T. YukiContentInkjet We aim to contribute to society through collaboration with industries.ResearchField: Organic DevicesSpecialty:Organicelectronicmaterials,Yamagata University Research Center for Organic ElectronicsResearch FieldOrganic DevicesSpecialityOrganic electronic materials, Printing Process,Key Technologies for Flexible Organic ElectronicsKey Technologies for Flexible Organic ElectronicsProf. H. Nakada & M. Koden, Associate Prof. T. Furukawa & T. Yuki Associate Professor Daisuke KumakiAssociate ProfessorDaisuke KumakiProf. H. Nakada & M. Koden, Associate Prof. T. Furukawa & T. Yuki
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