第44卷第2期2023年2月Vol.44No.2Feb.,2023发光学报CHINESEJOURNALOFLUMINESCENCEUpconversionLuminescenceofCaSc2O4∶Er,NdNanocrystalsUnder808nm/980nmNearInfraredExcitationCUIWenhao1，PENGYaru1*，LIJing1*，HUANGYuxin1，CHENLi1，2（1.SchoolofMaterialsScienceandEngineering，ChangchunUniversityofTechnology，Changchun130012，China；2.AdvancedInstituteofMaterialsScience，ChangchunUniversityofTechnology，Changchun130012，China）*CorrespondingAuthors，E-mail：pengyaru@ccut.edu.cn；lij@ccut.edu.cnAbstract：AseriesofCaSc2O4∶Er3+，Nd3+nanocrystalsweresynthesizedbythehydrothermalmethod.Thelumines‐cencepropertiesoftheCaSc2O4∶Er3+，Nd3+oxidecrystalsinthevisible-lightandnearinfrared（NIR）regionswerein‐vestigatedindetailastheNd3+concentrationsandexcitedwavelengthsvary.Under808nmexcitation，thelumines‐cenceintensityofEr3+ionsappearstobeenhancedastheconcentrationofNd3+ionsincrease.Therelativeredintensi‐tyalsohastheslightenhancement.Under980nmexcitation，Nd3+ionshardlyabsorb980nmphotons，onlytheab‐sorptionandemissionofEr3+ionsarefound.Therelativeredintensityhasnochange.Furthermore，onlytheemis‐sionofEr3+ionwasobservedinNIRspectrum，whichisconsistasthevisiblespectrum.Thedetailedstudyrevealsthepossibleupconversionluminescence（UCL）mechanisminvolvedinanovelCaSc2O4∶Er3+，Nd3+nanocrystalsun‐der808nmand980nmNIRexcitation.Keywords：upconversionluminescence（UCL）；Nd3+ions；Er3+ions；CaSc2O4nanocrystals；nearinfrared（NIR）excitationCLCnumber：O482.31Documentcode：ADOI：10.37188/CJL.20220336808nm/980nm近红外光激发下CaSc2O4∶Er,Nd纳米晶的上转换发光特性崔文豪1，彭亚茹1*，李静1*，黄宇欣1，陈力1，2（1.长春工业大学材料科学与工程学院，吉林长春130012；2.长春工业大学材料科学高等研究院，吉林长春130012）摘要：通过水热法合成了一系列CaSc2O4∶Er3+，Nd3+纳米晶。随着Nd3+浓度和激发波长的变化，详细研究了CaSc2O4∶Er3+，Nd3+氧化物在可见光和近红外（NIR）区域的发光特性。在808nm激发下，Er3+离子的发光强度随着Nd3+离子浓度的增加出现增强。相对的红色强度也有轻微的增强。在980nm激发下，Nd3+离子几乎不吸收980nm的...
