Synthesis and luminescent properties of Sm3+ doped zinc aluminate phosphor

Author(s):  
Rubby Mahajan ◽  
Sandeep Kumar ◽  
Ram Prakash ◽  
Vinay Kumar
2014 ◽  
Vol 936 ◽  
pp. 562-570 ◽  
Author(s):  
Zhe Kong ◽  
Hong Bo Wang ◽  
Er Pan Zhang ◽  
Tao Qiu ◽  
Jun Zhang ◽  
...  

Dy3+ doped blue-green Eu2+ doped strontium aluminate (Sr4Al14O25:Eu2+) phosphor was prepared using a high temperature solid state method and the influence of the doped Dy3+ on the luminescent properties was studied using X-ray diffraction, scanning electron microscopy, fluorescence spectroscopy and a series of other characterization methods. It is found that Dy3+ doping can enhance the luminescent intensity and extend the afterglow time. The luminescent mechanism of rare earth ions doped strontium aluminate phosphor was also discussed deeply, the effects of the doping amount on the luminescent properties has been made detailed explanation and description. This work has important theoretical significance for the development of higher brightness and longer afterglow blue-green phosphors.


2012 ◽  
Vol 56 (1) ◽  
pp. 127-131 ◽  
Author(s):  
S. Constantin ◽  
M.L. Stanciu

AbstractZinc aluminate (ZnAl2O4) doped with rare earth metal ions has been investigated most frequently because of the unique luminescent properties resulting from its stability and high emission quantum yields. The present work is devoted to calculate the Judd-Ofelt parameters (Ω2, Ω4 and Ω6) of the trivalent europium doped in ZnAl2O4 spinel, the quality factor (Q) and the branching ratio (β).


2014 ◽  
Vol 9 (1) ◽  
pp. 60-63 ◽  
Author(s):  
Lin Xing ◽  
Lianghui Qu ◽  
Qing He ◽  
Tong B. Tang ◽  
Linfeng Yang

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