200 µm200 µm33Outlook for researchDye-sensitized solar cells and organic-film solarcells are expected to serve as low-cost, next-generation solar cell. Further, by explaining themechanism of electron transfer, I believe it willbe possible to design high-performance devicesusing low-cost materials.Outlook for students after graduationGraduates are employed by material, device, and electrical manufacturers.Outlook for researchonOutlook for students after graduationtheavailabilitygraduatetheirofProfessorMORI ShogoProfessorWATANABE MasashiDepartment ofChemistry and MaterialsMany universities and companies throughoutthe world arepursuing research and development programs with the goal ofincreasing the efficiency of solar cells that can be created bycoating surfaces with a mixture of titanium oxide (used in sunblockcreams), iodine (used as a disinfectant), and pigments (such asfrom blueberries). I am working to develop highly efficient solarcells and explain the mechanism of electron transfer.Department ofChemistry and MaterialsProfessor Mori took his currentposition in 2018 after working atNokia Japan and as an assistantprofessor and then an associateprofessor in the Faculty of TextileScienceatShinshu University. His areas ofresearch include dye-sensitizedand organic film solar cells andsemiconductorsurfaceelectron transfer.Professoriscurrently interested in surfaceproperties of polymers andarrangement of small objects,such as crystalline needles.Fig. 1. Scanning electron microscopy image of wrinkles with a stripe pattern.Fig. 2. Light microscope image of wrinkles with an interdigitated array pattern.A selection of pigment solution and dye-sensitized solar cells made from them. These solutions make it possible to design effective solar cells.It is possible to make solar cells without complex equipment.Studiessurfaceapplicationstopographies are progressing continuously.For example,I am attempting to constructregular arrays of crystalline needles usingsurface wrinkles on silicone rubber.Consideringseveralinteresting domains, I believe that graduatefreely,students willchoose theirirrespectiveresearchdomain.ofofjobsI am engaged in developing technology to create regularsurface topography using simple methods. For example,treating the surface of a silicone rubber sheet with amixture of conc. H2SO4 and conc. HNO3 creates regularwrinkles on it (Fig. 1). As another example, thin gold filmsspontaneously wrinkle to form an interdigitated arraypattern using sputtering methods of thin film formationon a silicone rubber surface (Fig. 2).TechnologyandandWatanabeMixing familiar materials to make coatingsfor high-efficiency solar cellsDevelopment of simple methods for creatingregular surface topography
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