Engineering-Research-Activity2015｜SHINSHU UNIV.

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OishiLabVariousminerals(crystals)arenaturallyproducedonearthsuchasjewelslikediamondsandrubies.OishiLabcollaborateswithTeshimaLabandWagataLab.Westudythegrowthoffunctionalcrystalsbyenvironmentally-friendlyfluxmethod,thatmimicsthemineralgrowthinnature.Ourlabisontheleadingedgeoftheresearchoncrystalgrowthbyfluxmethodintotheworld.Weworkoneco-materials&eco-technologyforthefuturegenerations,beingfascinatedbybeautifulflux-growncrystals.Crystalsconsistofthree-dimensionalperiodicaligned-atomsandions.Theirperfectregularalignmentsofferthemultimateproperties.Fluxmethodisamethodofgrowingcrystalsinasolution.Oneadvantageofthismethodisthatthegrowncrystalsdisplaynaturalfacets.Nowwearefocusingonthefluxgrowthoffunctionalcrystalsthatcanbeappliedtodevelopecotechnologies.Thecrystalscienceandtechnologiesthatwelearnfromthenaturehavehopesofsavingthefutureoftheearth.ShujiOishiProfessorHecompletedgraduateschoolofGunmaUniv.,andstartedtoworkasanassistantprofessorinShinshuUniv.in1974.Hehasbeenassignedatpresentpostfrom2000.Ruby crystals grown by environmentally-friendly flux growth; (left) Hart-shaped ruby coating, (right) idiomorphic ruby crystals with hexagonal pyramid shape GrowthofFunctionalSingleCrystalsbyFluxMethodCarbon dioxide fixation by an environmentally-friendly process mimicking the formation mechanism of shells and corals in sea (crystal growth of calcium carbonate)Manystudentsfromourlabhavebecomeresearchersandengineersthathopetochangethefuturewithecomaterials&ecotechnology.Theyareactiveinvariousfieldsthatarerelatedtoautomobiles,electronics,andmachinery,aswellasmaterialsscienceandchemistry.In the FutureAfter GraduationEnvironmental Science &TechnologyTeshimaLab『ForTheFutureGreenMobility』TeshimaLabhasbeenworkingtodesignnewenergy&environmentalcrystallinematerialsincollaborationwithOishiLabandWagataLab.Inparticular,wearechallengingtoconstructanewscientificprincipleinordertodevelopfunctionalinorganiccrystalswithhierarchicallycontrolledstructures,ranginginsizefrom0.1nmto100μm.Withthisprinciple,wecanachievethereductionofenergylossesand/orthehighlyefficientenergyuseofall-solid-stateenergyconversiondevices.Highqualitycrystals,usedinsemiconductorsandmanyotherapplications,areindispensablematerialsinourlives,becausesinglecrystalshavepotentialstoexhibittheirnear-marginalperformances.Thisisaveryimportantconceptinthematerialdevelopmentofsolid-stateenergy-conversiondevices,next-generationenergystorageandproduction,solarhydrogengeneration,andpurificationofhazardousmatters.KatsuyaTeshimaProfessorHecompleteddoctoraldegreeinNagoyaUniv.andstartedtoworkasanassistantprofessorinShinshuUniv.in2005.Hehasbeenassignedatpresentpostfrom2011.All-crystal-statelithium-ionbatteriesforelectricvehicles;coin-celltypeLIB(left),schematicsofLIBstructureandourcrystalsFlux Innovation for Pioneering Energy & Environmental MaterialsFuture scientists presenting in international conferences (in France, Italy, and Korea) and the largest exhibition of university in Japan (students in our lab)Graduatesfromourlabarecommittedtodevelopingecomaterials&ecotechnologies.Therefore,theyareactiveasresearchersandengineersinvariousfieldsrelatingtoautomobiles,energy,electronicsaswellasmaterialsscienceandchemistry.In the FutureAfter GraduationEnvironmental Science &Technology65

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