Hydrothermal synthesis for the enhanced red and green Sr3Y(PO4)3:Eu3+, Tb3+ phosphors

2019 ◽  
Vol 33 (05) ◽  
pp. 1950048 ◽  
Author(s):  
Liyong Wang ◽  
Xue Wang ◽  
Qingwei Song ◽  
Tianying Xie ◽  
Xiaoqing Guo ◽  
...  

A series of enhanced red and green emission phosphors: [Formula: see text] (SYP): [Formula: see text], [Formula: see text] were successfully synthesized via a novel hydrothermal method. The structural and optical properties were investigated through XRD and PL (photoluminescence) measurements. The results of PL spectra revealed that SYP exhibited red and green emission for [Formula: see text], [Formula: see text]-phosphors doped, respectively. In order to obtain optimal phosphors, we proposed the concentration of dopants and the reaction time. Results indicated that enhanced red and green emission phosphors SYP may be potential candidates in light-emitting diodes (LEDs).

2006 ◽  
Vol 295 (1) ◽  
pp. 7-11 ◽  
Author(s):  
J.P. Liu ◽  
G.D. Shen ◽  
J.J. Zhu ◽  
S.M. Zhang ◽  
D.S. Jiang ◽  
...  

2016 ◽  
Vol 55 (5S) ◽  
pp. 05FJ09 ◽  
Author(s):  
Matin Sadat Mohajerani ◽  
Marcus Müller ◽  
Jana Hartmann ◽  
Hao Zhou ◽  
Hergo-H. Wehmann ◽  
...  

2007 ◽  
Vol 17 (01) ◽  
pp. 81-84
Author(s):  
J. Senawiratne ◽  
M. Zhu ◽  
W. Zhao ◽  
Y. Xia ◽  
Y. Li ◽  
...  

Optical properties of green emission Ga 0.80 In 0.20 N/GaN multi-quantum well and light emitting diode have been investigated by using photoluminescence, cathodoluminescence, electroluminescence, and photoconductivity. The temperature dependent photoluminescence and cathodoluminescence studies show three emission bands including GaInN/GaN quantum well emission centered at 2.38 eV (~ 520 nm). The activation energy of the non-radiative recombination centers was found to be ~ 60 meV. The comparison of photoconductivity with luminescence spectroscopy revealed that optical properties of quantum well layers are strongly affected by the quantum-confined Stark effect.


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