CAJ | 학술논문

以硝酸锌和硫粉分别为锌源和硫源，利用水热法在碱性体系下合成了具有光谱下转换功能的 ZnS∶Sm微球。探讨了Sm3+掺杂浓度、反应温度对ZnS∶Sm微球的晶相结构和发光性质的影响。采用SEM、XRD、PL和PLE等对微球的晶体形貌、物相结构和荧光性能进行表征。结果表明，Sm3+掺杂浓度越高，晶体中发光中心越多、发光越强，但Sm3+掺杂浓度达到摩尔分数5%时，在浓度淬灭和ZnS晶格畸变的双重作用下，导致发光减弱。反应温度越高，晶体生长越完整，晶体的发光越强。
이초산자화류분분별위자원화류원，이용수열법재감성체계하합성료구유광보하전환공능적 ZnS∶Sm미구。탐토료Sm3+참잡농도、반응온도대ZnS∶Sm미구적정상결구화발광성질적영향。채용SEM、XRD、PL화PLE등대미구적정체형모、물상결구화형광성능진행표정。결과표명，Sm3+참잡농도월고，정체중발광중심월다、발광월강，단Sm3+참잡농도체도마이분수5%시，재농도쉬멸화ZnS정격기변적쌍중작용하，도치발광감약。반응온도월고，정체생장월완정，정체적발광월강。
ZnS∶Sm microsphere with spectral down-conversion function was prepared by hydrothermal method in the alkaline system using zinc nitrate and sulfur powder as zinc and sulfur sources, respectively. The influences of Sm3+doping concentration and reaction temperature on the crystal structure and luminescence property of ZnS∶Sm microsphere were discussed. XRD, PL, PLE and SEM were used to determined the morphology and property of ZnS∶Sm microsphere. The results show that the increasing of Sm3+doping concentration leads to the increasing of luminescence center and the enhancing of luminescent intensity. But when the doped concentration is up to 5%of mole fraction, concentration quenching and ZnS lattice deformation result in the decreasing of luminescent intensity. And the high reaction temperature contributes to the growth and luminescence of microsphere.