Luminescence properties and charge compensation of Sr3Al2O6 doped with Ce3+ and alkali metal ions

2010 ◽  
Vol 124 (2-3) ◽  
pp. 1094-1099 ◽  
Author(s):  
Guanghuan Li ◽  
Yawen Lai ◽  
Tianjie Cui ◽  
Hong Yu ◽  
Darui Liu ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Charge Compensation ◽  
Luminescence Properties ◽  
Alkali Metal Ions

Effect of co-doping of alkali metal ions on Ca0.5RE1−x(MoO4)2:xEu3+ (RE = Y, La) phosphors with enhanced luminescence properties

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 80390-80397 ◽  
Author(s):  
Venkatakrishnan Mahalingam ◽  
Jagannathan Thirumalai
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Emission Spectra ◽  
Luminescence Properties ◽  
Alkali Metal Ions ◽  
Elemental Mapping ◽  
Co Doping ◽  
Pl Emission ◽  
Enhanced Luminescence

Illustration of elemental mapping and PL emission spectra of the phosphors, Ca0.5RE1−x(MoO4)2:Eu3+,M+ (RE = Y, La; M = Li, K and Na).

Effect of alkali metal ions (Li+, Na+ and K+) on the luminescence properties of CaMgB2O5: Sm3+ nanophosphor

2015 ◽  
Vol 3 ◽  
pp. 9-16 ◽  
Author(s):  
M. Manhas ◽  
Vinay Kumar ◽  
Visha Sharma ◽  
O.M. Ntwaeaborwa ◽  
H.C. Swart
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Luminescence Properties ◽  
Alkali Metal Ions

Abnormal site occupancy and high performance in warm WLEDs of a novel red phosphor, NaHF2:Mn4+, synthesized at room temperature

2017 ◽  
Vol 46 (40) ◽  
pp. 13835-13844 ◽  
Author(s):  
Luqing Xi ◽  
Yuexiao Pan ◽  
Mengmeng Zhu ◽  
Hongzhou Lian ◽  
Jun Lin
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
High Performance ◽  
Room Temperature ◽  
Site Occupancy ◽  
Luminescence Properties ◽  
Alkali Metal Ions ◽  
Red Phosphor ◽  
Red Phosphors ◽  
Novel Strategy

A novel red phosphor, NaHF2:Mn4+, was obtainedviasubstituting Na+located at the center of the octahedron with Mn4+. This work provides a novel strategy to develop novel Mn4+doped red phosphors with controlled luminescence properties by substituting for alkali metal ions.

Luminescence properties of alkali metal ions sensitized CaFCl:Tb3+ nanophosphors

2015 ◽  
Vol 33 (10) ◽  
pp. 1026-1030 ◽  
Author(s):  
Lin LIN ◽  
Hui LIN ◽  
Zhezhe WANG ◽  
Biao ZHENG ◽  
Jixing CHEN ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Luminescence Properties ◽  
Alkali Metal Ions

scholarly journals Photoluminescence Optimization of Ca3(PO4)2:Eu3+ Phosphors By Crystallinity Improvement And Charge Compensation

2021 ◽  
Author(s):  
D.H. KIM ◽  
J.W. PI ◽  
G.W. JUNG ◽  
J.S. KIM ◽  
K. Park
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Emission Intensity ◽  
Charge Compensation ◽  
Alkali Metal Ions ◽  
Color Purity ◽  
Charge Balance ◽  
Structural And Optical Properties ◽  
Color Quality ◽  
Emission Color

Abstract In this study, in order to improve the photoluminescence properties of Ca3(PO4)2:Eu3+ phosphors, alkali metal ions (Li+, Na+, and K+) were doped into the Ca2.91(PO4)2:Eu3+ phosphors, and the effects of alkali metal ions on the structural and optical properties were investigated. The alkali metal ions significantly enhanced the emission intensity and improved the emission color quality because they induced the charge balance, improved the crystalline quality, and stabilized the crystal structure, namely, the alkali metal ions in Ca3(PO4)2:Tb3+ acted as both charge compensators and fluxes. Of the alkali metal ions used, Li+ was an optimal cation to improve the emission intensity and color purity. The Ca2.82(PO4)2:0.09Eu3+, 0.09Li+ phosphor showed a 40% stronger red emission intensity than that of the Ca2.91(PO4)2:0.09Eu3+ phosphor. We demonstrate that incorporating alkali metal ions, especially Li+, is important to improve the emission intensity and color purity.

Microwave synthesis and luminescence properties of PO43− and alkali metal ions-doped CaMoO4:Dy3+ phosphors

Optik ◽  
2021 ◽  
Vol 225 ◽  
pp. 165810
Author(s):  
Yongqing Zhai ◽  
Longtai Jiang ◽  
Ying Han ◽  
Weiao Wang ◽  
Xiangyun Chen ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Microwave Synthesis ◽  
Luminescence Properties ◽  
Alkali Metal Ions
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