摘要
AseriesofCeB6-dopedandCeO2-dopedCa1-xSiAlN3:xCe3+（denotedasCASN:Ce3+@CeB6andCASN:Ce3+@CeO2,respectively）weresynthesizedbyalloy-nitridationmethodunderhigh-puritynitrogenatmosphere.Themorphologies,crystalphases,andluminescencepropertieswereinvestigatedindetail.WithanincreaseintheconcentrationofCeB6,theunitcellvolumeofCASN:Ce3+@CeB6slightlyincreasesduetothesubstitutionbetweenions,whichleadstoachangeofmicrostructurearoundCe3+.CASN:Ce3+@CeB6efficientlyemitsyellow-orangelightwithamaximumemissionintensityataround550nmforthecontentxof0.01（beingincomparablesituation,CASN:Ce3+@CeO2isx=0.04）whenexcitedat460nm.ComparedwithCASN:Ce3+@CeO2,theredemissioncomponentofCe3+inCASN:Ce3+@CeB6ismuchstronger.Thisisascribedtoenergytransferofintra-Ce3+（withinoneCe3+ion）andinter-Ce3+（betweenCe3+andCe3+ions）.Inaddition,thereplacementsofN3-（0.132nmforCN=4）andO2-（0.124nmforCN=4）byB2-（0.140nmforCN=4）,whichcanleadtoamarkedexpansionofthehostlatticeandadecreaseoftheoxidationofsamples,arealsoresponsiblefortheincreaseofredemissioncomponent.Furthermore,CASN:Ce3+@CeB6phosphorhasanexcellentthermalstabilitybecauseofthepartialsubstitutionofCe-O（Ce-N）bondsbymorecovalentCe-B.Asaresult,theoutstandingluminescentpropertiesofCASN:Ce3+@CeB6phosphormakeitpracticaltouseinthesinglephosphor-coatedhigh-color-renderingpowerwhiteLED.
出版日期
2018年12月22日（中国期刊网平台首次上网日期，不代表论文的发表时间）
