Y2SiO5：Ce^3+荧光体的基质多面体替换及其对发光性能的调控研究
Y2SiO5:Ce荧光体的基质多面体替换及其对发光性能的调控研究 罗 懿 夏志国 (中国地质大学(北京)材料学院,北京 100083) 摘要:荧光材料基质的结构调制对于调控发光材料的发光性能,探索固体结构一性能关系具有重要的研究意义 本文以Y,SiO 基质为模型,分别利用Si/A1和Si/P取代,以[A104]~1[PO,]四面体替~[SiO4]四面体...
采用融盐辅助的Sol-gel法制备的La3+和Gd3+掺杂Y2SiO5:Ce的发光性能较固相法合成的样品有较大幅度的提高。采用固相法在1100℃制备了Mg2+和Co2+掺杂的Zn2SiO4:Mn绿色荧光粉,样品的发光强度较未掺杂样品有明显提高。通过对掺杂离子种类和浓度的控制,可以在保证较高发光强度的前提下,缩短Zn2SiO4:Mn余辉时间。
Unveiling of UV intrinsic luminescence in (Lu,Y)2SiO5:Ce3+ single crystals New previously unreported intrinsic emission band at 250nm has been observed in LYSO single crystals.Temperature dependencies of intrinsic luminescence hav... V Pankratova,K Chernenko,D Bocharov,... - 《Optical Materials...
Lu2SiO5:Ce and Y2SiO5:Ce single crystals and single crystalline film scintillators: Comparison of the luminescent and scintillation properties The paper is dedicated to development of scintillators based on the single crystalline films of Ce3+ doped Lu2SiO5 (LSO:Ce) and Y2SiO5 (YSO:Ce) ...
【摘要】Cerium doped Y2 SiO5 (YSO)is an important scintillator material due to its high density,non-hygroscopic,excellent light output and fast decay time nature.in the paper,Y2 SiO5 ∶Ce3 + 0.2%(YSO∶Ce)was grown with high-temperature solid-phase method.The time-resolved excitation and ...
Y2SiO5:Ce荧光体的基质多面体替换及其对发光性能的调控研究 罗 懿 夏志国 (中国地质大学(北京)材料学院,北京 100083) 摘要:荧光材料基质的结构调制对于调控发光材料的发光性能,探索固体结构一性能关系具有重要的研究意义 本文以Y,SiO 基质为模型,分别利用Si/A1和Si/P取代,以[A104]~1[PO,]四面体替~[SiO4]四面体...
The use of the new water-soluble silicon compound allowed for preparation of a single phase (Y,Ce,Gd)2SiO5 material at reduced temperatures and its fluorescence intensity was considerably higher compared to the phosphors of the same composition prepared by the other methods. 展开 ...
Y_2SiO_5:Ce~(3+) 2) Y Ⅲ YⅢ 1. Two nine-coordinateY Ⅲcomplexes with aminopolycarboxylic acids ligands(K 3[Y Ⅲ(nta) 2(H 2O)]6H 2O and K 2[Y Ⅲ(dtpa)(H 2O)]·7H 2O) were synthesized. 在得到K3[YⅢ(nta) 2 (H2 O) ]·6H2 O及K2 [YⅢ(dtpa) (H2 O) ]·7H2...
用溶胶凝胶法合成了Y(下标 2-x)SiO5:Eu(下标 x)纳米发光材料,使用XRD,FTIR和TEM对其结构进行了表征.讨论了相结构,煅烧温度和Eu(上标 3+)掺杂浓度对材料发光性能的影响及规律.结果显示煅烧温度在900℃以下,材料主要呈非晶相结构,900℃以上材料主要呈晶态结构;颗粒随煅烧温度升高而增大,在非晶态时颗粒大小在15~...