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1、COMMUNICATIONpubs.acs.org/JACSNa2CsBe6B5O15:AnAlkalineBerylliumBorateasaDeep-UVNonlinearOpticalCrystalShichaoWangandNingYe*KeyLaboratoryofOptoelectronicMaterialsChemistryandPhysics,FujianInstituteofResearchontheStructureofMatter,ChineseAcademyofSciences,Fuzhou,Fujian350002,P.
2、R.ChinabSSupportingInformationlongerthanthatinKBBF(6.25Å),resultinginalower[BO3]ABSTRACT:Anewdeep-UVnonlinearopticalcrystal,densityintheformer.Therefore,theSHGcoefficientsofNa2CsBe6B5O15,hasbeengrownthroughspontaneousβ-KBe2B3O7,RbBe2B3O7,andγ-KBe2B3O7werefoundtocrystallizationw
3、ithamoltenfluxbasedonNa2OC-besmallerthanthatofKBBF.Inourcontinuedquestforlarges2OB2O3.Na2CsBe6B5O15containstwo-dimensionalal-SHGeffectsintheselayeredcompoundscontainingalveo-veolateberylliumboratelayers[Be2BO5]∞thatarebridgedlatenetworks,wetriedtoconstructtheirstructuresthrou
4、ghtheviaplanar[BO3]groups.UVvisdiffusereflectanceanalysisintroductionofsmaller[BO3]groupstoserveasbridgesinonapowdersampleofNa2CsBe6B5O15indicatesthattheordertoincreasetheir[BO]3densities.Oneoftheresulting3short-wavelengthabsorptionedgeofNa2CsBe6B5O15isalkalineberylliumborate
5、s,Na2CsBe6B5O15,wasfoundinthisbelow200nm.Second-harmonicgeneration(SHG)onworktoexhibitashorterinterlayerdistance,andconsequently,athepowdersamplewasmeasuredwitha1064nmlaserusinglargerSHGeffectwasobtainedthroughproperallocationofbinarytheKurtzandPerrytechnique,whichshowedthatNa
6、2Cs-alkalinecationstofitthecavitiesbetweenadjacentlayers.Be6B5O15isaphase-matchablematerial,anditsmeasuredBecauseofthehightoxicityoftheberylliumoxidepowdersSHGcoefficientis∼1.17timesaslargeasthed36coefficientuponinhalation,alloftheexperimentswereperformedunderofpotassiumdihydrogen
7、phosphate.Therelativelylargersufficientventilation.SinglecrystalsofNa2CsBe6B5O15wereSHGcoefficientofNa2CsBe6B5O15originatesfromitsgrownfromahigh-temperaturesolutionusingNa2OCs2OshorterdistancebetweentheadjacentlayersbridgedviaB2O3asaflux.Thissolutionwaspreparedinaplatinumcrucibl
8、ethesmall[BO3]groups.aftermeltingofamixtureofNa2CO3,Cs2CO3,BeO,andB2
