The structure, photoluminescence and influence of temperature on energy transfer in co-doped Ca9La(GeO4)0.75(PO4)6 red-emission phosphors

2015 ◽  
Vol 44 (19) ◽  
pp. 9241-9250 ◽  
Author(s):  
Wenjin Xu ◽  
Ge Zhu ◽  
Xufeng Zhou ◽  
Yuhua Wang
Keyword(s):  
Energy Transfer ◽  
Red Emission ◽  
Influence Of Temperature ◽  
The Family ◽  
Influence Of Temperature On ◽  
Co Doped

A novel phosphate Ca9La(GeO4)0.75(PO4)6 was investigated to add to the family of phosphate phosphors and application in LEDs.

Structure, photoluminescence and influence of temperature on energy transfer of green-emission phosphor Ca9La(GeO4)0.75(PO4)6:Ce3+,Tb3+

2016 ◽  
Vol 40 (5) ◽  
pp. 4735-4743 ◽  
Author(s):  
Wenjin Xu ◽  
Xin Ding ◽  
Yuhua Wang
Keyword(s):  
Energy Transfer ◽  
Thermal Quenching ◽  
Green Emission ◽  
Influence Of Temperature ◽  
Influence Of Temperature On

In Ca9La(GeO4)0.75(PO4)6:Ce3+/Tb3+, because of the energy transfer, when temperature increases, intensity of Tb3+ shows slightly enhancement instead of thermal quenching.

scholarly journals BaYb-=SUB=-2-x-=/SUB=-Er-=SUB=-x-=/SUB=-Ge-=SUB=-3-=/SUB=-O-=SUB=-10-=/SUB=- и BaY-=SUB=-2-10y-=/SUB=-Yb-=SUB=-9y-=/SUB=-Er-=SUB=-y-=/SUB=-Ge-=SUB=-3-=/SUB=-O-=SUB=-10-=/SUB=-: люминесцентные свойства, перспективы использования для бесконтактного определения температуры

2021 ◽  
Vol 63 (7) ◽  
pp. 944
Author(s):  
O.А. Липина ◽  
Л.Л. Сурат ◽  
А.А. Меленцова ◽  
Я.В. Бакланова ◽  
А.Ю. Чуфаров ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Temperature Sensors ◽  
Optimal Composition ◽  
Powder Diffraction Data ◽  
Solid State Method ◽  
Monoclinic System ◽  
Influence Of Temperature ◽  
X Ray ◽  
Influence Of Temperature On ◽  
State Method

Triorthogermanates BaYb2-xErxGe3O10 (x = 0.1–0.3) and BaY2-10yYb9yEryGe3O10 (y = 0.015–0.15) have been synthesized by the solid-state method. According to X-ray powder diffraction data, the compounds crystallize in the monoclinic system, S.G. P21/m, Z = 2. The concentration and power pump dependences studies have been carried out for the lines in the 510–720 nm spectral range under 980 nm excitation. The mechanisms of energy transfer between optical centers have been also proposed and the optimal composition of the phosphor has been determined. The influence of temperature on the intensity ratio of the luminescence bands with maxima at 521 nm and 552 nm (2H11/2 → 4I15/2 and 4S3/2 → 4I15/2 transitions in Er3+) has been investigated, and conclusions about the possibility of using the germanates as materials for optical temperature sensors have been drawn.

scholarly journals Photoluminescence tuning in a novel Bi3+/Mn4+ co-doped La2ATiO6:(A = Mg, Zn) double perovskite structure: phase transition and energy transfer

2018 ◽  
Vol 6 (48) ◽  
pp. 13136-13147 ◽  
Author(s):  
Gongcheng Xing ◽  
Yuxin Feng ◽  
Min Pan ◽  
Yi Wei ◽  
Guogang Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Energy Transfer ◽  
Perovskite Structure ◽  
Double Perovskite ◽  
Red Emission ◽  
Structure Phase ◽  
Structure Phase Transition ◽  
Co Doped

Enhanced red emission of Mn4+ and photoluminescence tuning by Bi3+ → Mn4+ energy transfer and symmetric changes in Bi3+/Mn4+-doped La2ATiO6 (A = Mg, Zn) double perovskite structure phosphors.

scholarly journals Highly efficient red emission and multiple energy transfer properties of Dy3+/Mn4+co-doped Ca14Zn6Ga10O35phosphors

RSC Advances ◽  
2017 ◽  
Vol 7 (28) ◽  
pp. 17244-17253 ◽  
Author(s):  
Yiyang Zhou ◽  
Weiren Zhao ◽  
Junhua Chen ◽  
Zifeng Liao
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Technique ◽  
Red Emission ◽  
Highly Efficient ◽  
Transfer Properties ◽  
Co Doped

Novel Dy3+/Mn4+co-doped Ca14Zn6Ga10O35phosphors have been synthesized by a solid state reaction technique.

Tunable green to red emission via Tb sensitized energy transfer in Tb/Eu co-doped alkali fluoroborate glass

2017 ◽  
Vol 192 ◽  
pp. 1288-1294 ◽  
Author(s):  
Subash Gopi ◽  
Saritha K. Jose ◽  
E. Sreeja ◽  
P. Manasa ◽  
N.V. Unnikrishnan ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Red Emission ◽  
Co Doped

Photoluminescent Properties of Na+, Bi3+ Co-Doped CaWO4: Eu3+ Phosphor for PDPs

2013 ◽  
Vol 341-342 ◽  
pp. 229-232
Author(s):  
Bi Tao Liu ◽  
Lin Lin Peng
Keyword(s):  
Energy Transfer ◽  
Vacuum Ultraviolet ◽  
Photoluminescence Intensity ◽  
Red Emission ◽  
Plasma Display Panels ◽  
Charge Compensator ◽  
Plasma Display ◽  
Photoluminescence Enhancement ◽  
A Charge ◽  
Co Doped

The photoluminescent properties of Na, Bi co-doped CaWO4:Eu3+ phosphor under vacuum ultraviolet (VUV) region excited was investigated. A red emission of CaWO4:Eu3+ can be observed under 147 nm excitation. It was also found that the photoluminescence intensity of Na doped CaWO4:Eu3+ would be enhanced than the un-doped phosphors due to Na+ ions would act as a charge compensator and it can restrict the generation of defects in CaWO4:Eu3+. Additionally, the photoluminescence enhancement of Na+, Bi3+ co-doped CaWO4:Eu3+ should due to the energy transfer between WO42-, Bi3+ and Eu3+, and Bi3+ ions would act as a medium for the energy transfer, via WO42-Bi3+Eu3+. These are expected to be applying in plasma display panels.

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