Effects of charge compensator Li+ co-doping on the structure and luminescence properties of Cd2V2O7:Eu3+ red phosphors

2018 ◽  
Vol 44 (8) ◽  
pp. 9534-9539 ◽  
Author(s):  
Wentao Zhang ◽  
Guilin Yan ◽  
Siyi Dai ◽  
Peicong Zhang ◽  
Qingdong Zhao ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Co Doping ◽  
Red Phosphors ◽  
Charge Compensator

Luminescence Properties and Energy Transfer of Sm3+-Eu3+ Co-Doped Gd2(MoO4)3 Red Phosphors

2012 ◽  
Vol 591-593 ◽  
pp. 931-934 ◽  
Author(s):  
Xiu Juan Geng ◽  
Yong Jie Chen ◽  
Yan Wen Tian ◽  
Lin Jiu Xiao
Keyword(s):  
Particle Size ◽  
Energy Transfer ◽  
Sol Gel ◽  
Luminescence Properties ◽  
Good Prospect ◽  
Efficient Energy Transfer ◽  
Co Doping ◽  
Red Phosphors ◽  
Chromaticity Coordinates ◽  
Standard Values

The red phosphor Gd2(MoO4)3:Eu3+,Sm3+ was prepared by sol-gel method. The morphology and luminescence characteristics of the phosphor particles were characterized by scanning electron microscopy (SEM) and fluorophotometer. The results showed that the phosphor had the advantages of small particle size and the uniform particle size distribution. The luminescence properties of Eu3+ ions in Gd1.37Eu0.6Sm0.03(MoO4)3 could be evidently improved by co-doping of Sm3+ ions, which was due to the efficient energy transfer process from Sm3+ to Eu3+ ions. The chromaticity coordinates for Eu3+ doped Gd1.4Eu0.6(MoO4)3 and Eu3+ and Sm3+ codoped Gd1.37Eu0.6Sm0.03(MoO4)3, are(0.662, 0.329) and (0.668, 0.331), respectively. Because of the introduction of Sm3+ into the red-emitting phosphors, the chromaticity coordinates of Gd1.37Eu0.6Sm0.03(MoO4)3 phosphor is closer to the standard values of International chromaticity coordinates(0.67, 0.33). So Gd1.37Eu0.6Sm0.03(MoO4)3 shows good prospect for red phosphors of white LED.

Enhancement of the luminescence properties of Sr3 (PO4 )2 :Dy3+ ,Li+ white-light-emitting phosphors by charge compensator Li+ co-doping

Luminescence ◽  
2017 ◽  
Vol 32 (8) ◽  
pp. 1593-1596 ◽  
Author(s):  
Yuhang Li ◽  
Siyi Dai ◽  
Wentao Zhang ◽  
Peicong Zhang ◽  
Kehui Qiu
Keyword(s):  
White Light ◽  
Luminescence Properties ◽  
Light Emitting ◽  
Co Doping ◽  
Charge Compensator

Synthesis and luminescence enhancement of CaY0.6(MoO4)1.9:Eu3+ red phosphors by Sm3+ co-doping

2020 ◽  
Author(s):  
Sangang Lou ◽  
Peicong Zhang ◽  
Yu Chen ◽  
Qiang Xiong ◽  
Kehui Qiu
Keyword(s):  
Luminescence Enhancement ◽  
Co Doping ◽  
Red Phosphors

scholarly journals Enhanced luminescence properties of Ca1+xSr2−xAl2O6:Eu3+ (0 ≤ x ≤ 1) red phosphors based on composition modulation

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12981-12989
Author(s):  
Biao Shen ◽  
Jianghang Xu ◽  
Qinan Mao ◽  
Jiasong Zhong
Keyword(s):  
Optical Properties ◽  
Quantum Efficiency ◽  
Luminescence Properties ◽  
Composition Modulation ◽  
Red Phosphors ◽  
Potential Applications ◽  
Enhanced Luminescence

A series of Ca1+xSr2−xAl2O6:Eu3+ (0 ≤ x ≤ 1) red-emitting phosphors with adjustable optical properties and excellent quantum efficiency was developed for potential applications in warm WLEDs.

Improving the luminescence properties of YAG:Ce3+ phosphors by co-doping Sr2+ ions

Optik ◽  
2021 ◽  
Vol 231 ◽  
pp. 166363
Author(s):  
Wellisson S. Silveira ◽  
Ariosvaldo Junior Sousa Silva ◽  
Patresio Alexandro Miranda do Nascimento ◽  
Iure da Silva Carvalho ◽  
Marcos V. dos S. Rezende
Keyword(s):  
Luminescence Properties ◽  
Co Doping

Luminescence properties of Eu3+ doped BaCa2MgSi2O8 phosphor and the influence of charge compensator in the host

Optik ◽  
2017 ◽  
Vol 147 ◽  
pp. 321-327 ◽  
Author(s):  
Dejian Hou ◽  
Haizhen Lai ◽  
Xixiang Pan ◽  
Bin Zhu ◽  
Xinyu Ye ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Charge Compensator

Effects of Charge Compensators on Structure and Luminescent Properties of Microwave Synthesized CaMoO4:Eu3+ Red Phosphors

2017 ◽  
Vol 727 ◽  
pp. 592-597
Author(s):  
Ying Han ◽  
Zhi Lin Li ◽  
Wan Zhang ◽  
Yan Jie Yin ◽  
Yan Mei Li ◽  
...  
Keyword(s):  
Broad Band ◽  
Luminescent Properties ◽  
Emission Peak ◽  
Luminous Intensity ◽  
Main Peak ◽  
Doping Amount ◽  
X Ray ◽  
Red Phosphors ◽  
Charge Compensator ◽  
Pure Phase

Red phosphors CaMoO4:Eu3+ were synthesized by microwave method with MnO2 as microwave absorbent. The phase structure and luminescent properties of the as-synthesized phosphors were investigated by X-ray powder diffraction and Fluorescence spectrophotometer. The results show that when the reaction time was 40 min, microwave power was medium-high fire (~560 W), we got the tetragonal CaMoO4:Eu3+ pure phase. The excitation spectrum of CaMoO4:Eu3+ was composed by a broad band between 200 nm and 350 nm and a series of peaks from 350 nm to 500 nm. The main peak was at 305 nm. The emission spectrum was composed of a series of peaks in the range of 550~750 nm and the main peak was at 617 nm due to the 5D0→7F2 transition of Eu3+. Doping charge compensator Li+, Na+ or K+ could improve the luminous intensity of the sample. When the doping amount of Li+, Na+ or K+ were 8 mol%, the luminous intensity of the sample reached the maximum. The intensity of the emission peak at 617 nm was 4.04, 3.42, 3.48 times of sample without doping charge compensator.

scholarly journals Effect of Bi3+ and Li+ co-doping on the luminescence properties of Zn2TiO4:Eu3+ nanophosphor for display applications

2019 ◽  
Vol 1 (8) ◽  
Author(s):  
K. M. Girish ◽  
S. C. Prashantha ◽  
Ramachandra Naik ◽  
H. Nagabhushana ◽  
K. S. Anantharaju
Keyword(s):  
Luminescence Properties ◽  
Co Doping
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