CAJ | 학술논문

采用水热法制备出NaY(MoO4)2：Eu3+， Tb3+下转换发光材料。通过X射线粉末衍射、红外光谱、荧光激发和发射光谱对其进行表征。讨论了不同反应温度及Eu3+掺杂浓度对NaY(MoO4)2：Eu3+， Tb3+的晶体结构和发光性能的影响，得到水热温度为180℃及Eu3+浓度为摩尔分数0.7%时，样品具有最佳的发光效果。在395 nm光激发下，观察到了591 nm处橙光发射峰以及616 nm处强红光发射峰，分别对应于Eu3+的5D0→7F1和5D0→7F2跃迁。并研究了NaY(MoO4)2：Eu3+， Tb3+材料中Tb3+对Eu3+的敏化作用及能量传递过程。
채용수열법제비출NaY(MoO4)2：Eu3+， Tb3+하전환발광재료。통과X사선분말연사、홍외광보、형광격발화발사광보대기진행표정。토론료불동반응온도급Eu3+참잡농도대NaY(MoO4)2：Eu3+， Tb3+적정체결구화발광성능적영향，득도수열온도위180℃급Eu3+농도위마이분수0.7%시，양품구유최가적발광효과。재395 nm광격발하，관찰도료591 nm처등광발사봉이급616 nm처강홍광발사봉，분별대응우Eu3+적5D0→7F1화5D0→7F2약천。병연구료NaY(MoO4)2：Eu3+， Tb3+재료중Tb3+대Eu3+적민화작용급능량전체과정。
Trivalent europium and trivalent terbium ions codoped NaY(MoO4)2 down-conversation luminescence materials were synthesized by hydrothermal method. The properties of NaY(MoO4)2:Eu3+, Tb3+ were characterized by X-ray diffraction, infrared spectrometer, excitation spectra and emission spectra. The effects of reaction temperature and the concentration of europium doping on the crystal structure and luminescence properties were discussed. The optimum synthesis conditions for NaY(MoO4)2 are as follows:the reaction temperature is 180 ℃, and the mole fraction of Eu3+is 0.7%. Under 395 nm excitation , the orange emission peak at 591 nm and red emission peak at 616 nm of NaY(MoO4)2:Eu3+, Tb3+can be observed. The emitting light results from the transition 5D0→7F1 and 5D0→7F2 of Eu3+, respectively. The sensitized effect of Tb3+to Eu3+and corresponding energy transfer were studied.