CAJ | 학술논문

采用高温固相法合成了ALn（ MoO4）2∶3%Er3+（ A=Na,K；Ln=La,Y）荧光粉,采用XRD对荧光粉的晶体结构进行了表征。荧光光谱分析表明荧光粉可被380 nm可见光及274 nm近紫外光有效激发而产生下转换发射。在380 nm激发下,Er3+离子4 S3/2和2 H11/2能级发射存在温度猝灭现象。探讨了基质成分对荧光温度猝灭特征温度T0的影响,发现基质成分对特征温度有较大影响,KLa（MoO4）2∶3%Er3+的温度稳定性最好。利用荧光强度比（ FIR）方法研究了Er3+离子的温度传感特性,研究了基质成分对温度传感的绝对灵敏度的影响,发现NaY（ MoO4）2∶3%Er3+的温度传感绝对灵敏度最高。
채용고온고상법합성료ALn（ MoO4）2∶3%Er3+（ A=Na,K；Ln=La,Y）형광분,채용XRD대형광분적정체결구진행료표정。형광광보분석표명형광분가피380 nm가견광급274 nm근자외광유효격발이산생하전환발사。재380 nm격발하,Er3+리자4 S3/2화2 H11/2능급발사존재온도졸멸현상。탐토료기질성분대형광온도졸멸특정온도T0적영향,발현기질성분대특정온도유교대영향,KLa（MoO4）2∶3%Er3+적온도은정성최호。이용형광강도비（ FIR）방법연구료Er3+리자적온도전감특성,연구료기질성분대온도전감적절대령민도적영향,발현NaY（ MoO4）2∶3%Er3+적온도전감절대령민도최고。
ALn(MoO4)2∶3%Er3+(A=Na, K; Ln=La, Y) phosphors were prepared via a high temperature solid state reaction, the crystal structure of the obtained phosphors was characterized by XRD technique. The results of photoluminescence spectra indicated that the phosphors could be ef-fectively excited by 380 and 274 nm and evoked downconverion emissions. Temperature quenching behavior was observed in the phosphors under 380 nm excitation. The influence of host on the char-acteristic temperature of fluorescence emission was studied, and it was found that the host greatly af-fected the characteristic temperature and that KLa( MoO4 ) 2∶3%Er3+ phosphor presented a good lu-minescence temperature stability. The fluorescence intensity ratio ( FIR) was applied to study the temperature sensing property. The host dependence of absolute sensitivity of temperature sensing was investigated and NaY( MoO4 ) 2∶3%Er3+ phosphor was confirmed to have higher absolute sensitivity than the others.