Synthesis and Photoluminescence Characteristics of CaIn2O4:Dy3+ Phosphors Co-Doped with Gd3+, Zn2+ or Al3+ Ions

2016 ◽  
Vol 16 (4) ◽  
pp. 3973-3976 ◽  
Author(s):  
Jing Gou ◽  
Jing Wang ◽  
Binxun Yu ◽  
Dongyang Zhang
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Potential Application ◽  
Luminescence Properties ◽  
White Led ◽  
Co Doping ◽  
White Region ◽  
Chromaticity Coordinates ◽  
Co Doped

Novel warm-white emitting phosphors CaIn2O4:Dy3+ co-doped with Gd3+, Zn2+, or Al3+ ions were prepared by solid state reaction. In this paper, a strategy of co-doping with different ions was used with the aim of affecting the luminescence properties of CaIn2O4:0.6%Dy3+ under NUV excitation. The luminescence intensities of CaIn2O4:0.6%Dy3+ were enhanced by 0.2% Gd3+ or 0.2% Zn2+ ions co-doping under 367 nm excitation, but lowered by co-doping with 0.2% Al3+ ions. Furthermore, the chromaticity coordinates of CaIn2O4:0.6%Dy3+ can be tuned from the cold-white region to warmwhite region with Gd3+ or Zn2+ ions co-doping. These findings show that CaIn2O4:0.6%Dy3+, 0.2% Gd3+, and CaIn2O4:0.6%Dy3+,0.2% Zn2+ have potential application value as new warm-white LED phosphors.

scholarly journals Luminescence properties and energy transfer behavior of colour-tunable white-emitting Sr4Al14O25 phosphors with co-doping of Eu2+, Eu3+ and Mn4+

RSC Advances ◽  
2017 ◽  
Vol 7 (83) ◽  
pp. 52995-53001 ◽  
Author(s):  
Ziyao Wang ◽  
Xifeng Hou ◽  
Yangai Liu ◽  
Zhuang Hui ◽  
Zhaohui Huang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Solid State Reaction ◽  
Luminescence Properties ◽  
Co Doping ◽  
Transfer Behavior ◽  
Co Doped

Eu2+, Eu3+ and Mn4+ co-doped Sr4Al14O25 phosphors were synthesized in air by high temperature solid-state reaction.

PREPARATION AND LUMINESCENCE PROPERTIES OF Eu2+-ACTIVATED Ba-Six-O-N PHOSPHORS

2010 ◽  
Vol 24 (15n16) ◽  
pp. 3221-3225 ◽  
Author(s):  
RUILI ZHANG ◽  
MANAKA NUMATA ◽  
TOMONORI MAEDA ◽  
YUJI AKAZAWA ◽  
KEI-ICHIRO MURAI ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Emission Intensity ◽  
Visible Region ◽  
Wavelength Region ◽  
Green Emission ◽  
Main Phase ◽  
Luminescence Properties ◽  
White Led

A series of oxonitridosilicates phosphors Ba - Si x - O - N / Eu 2+ ( x = Si / Ba =1~8, 5atom% Eu 2+) were synthesized using traditional solid-state reaction. For x = 2~8, the main phase of the obtained samples was Ba 3 Si 6 O 12 N 2. All Ba - Si x - O - N / Eu 2+( x = 1~8) materials could be efficiently excited in the UV to visible region(310~450 nm ) and had a green emission at 508~522 nm , making them attractive as conversion phosphors for white LED applications. With increasing x values, the emission peaks shifted to the longer wavelength region, while the emission intensity had a maximum at x = 6. The influence of the firing times was also discussed, after twice fired, there was a tendency of single-phased formed of the obtained materials and the emission intensity was greatly improved.

Structural and Luminescence Properties of Eu3+ and Dy3+ Doped Magnesium Tellurite Borophosphate Ceramic

2015 ◽  
Vol 1107 ◽  
pp. 53-58
Author(s):  
Siti Maisarah Aziz ◽  
Rosli Hussin ◽  
N.M. Yusoff
Keyword(s):  
Solid State ◽  
Emission Spectra ◽  
Solid State Reaction Method ◽  
Luminescence Properties ◽  
Functional Material ◽  
X Ray Diffraction ◽  
Co Doping ◽  
Powder Samples ◽  
Diffraction Patterns ◽  
Co Doped

Lately, researchers have been considering the miscellaneous in the borophosphate crystalline’s luminescence as one of the important properties in hunt of the new functional material. In this study we discus the structural and luminescence properties of Eu3+/Dy3+ co-doped borophosphate ceramic. A series of ceramic samples based on B2O3-(65-)P2O5-25MgO-10TeO2 where (065) mol has successfully been prepared using solid state reaction method and sintered at 900°C. The crystalline phase of the powder samples was characterized using X-ray diffraction pattern. The diffraction patterns analysis indicated that the prepared samples were polycrystalline phase of B(PO4), Mg(PO3)2and Mg(BO3)(PO4). The local structure network structure has been investigated using Infrared Spectroscopy using KBr method. The FT-Infrared spectra reveal the presence of B-O-B vibrations, BO3 and BO4 bridging oxygen and P-O stretching modes of P-O-P, P=O and PO4 unit in the ceramics sample. Meanwhile, the luminescence properties of doped sample were measured based on analysis of emission spectra of photoluminescence spectroscopy. The emission peaks of Eu3+ doped sample were located at 593 nm, 613 nm, 652 nm, 685 nm due to the assigned transition 5D0-7FJ( J = 1, 2, 3, 4 ). The Dy3+ emission is due to 4F9/2 -5H15/2 and 4F9/2-6H13/2 transition. For Eu3+/Dy3+ co-doped sample consists of peaks belonging to the 4F9/2-6H15/2 (482 nm) and 4F9/2-6H13/2 (573 nm) transition while red emission 5D0-7F2 transitions appears at 611 nm. Improvement in the optical properties due to co-doping may be useful to discover a new highly efficient luminescent material that are very useful in optical devices and solid-state lighting.

scholarly journals Luminescence properties and energy transfer in Tb3+ and Eu3+ co-doped Ba2P2O7 phosphors

RSC Advances ◽  
2017 ◽  
Vol 7 (25) ◽  
pp. 15222-15227 ◽  
Author(s):  
Baoxing Wang ◽  
Qiang Ren ◽  
Ou Hai ◽  
Xiulan Wu
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Luminescence Properties ◽  
Energy Transfer Mechanism ◽  
Reaction Method ◽  
Air Atmosphere ◽  
Co Doped

The Ba2P2O7:Tb3+, Eu3+ phosphors were synthesized by a high temperature solid-state reaction method in air atmosphere and their crystal structures, lifetime, luminescence properties, and energy transfer mechanism were investigated in detail.

Enhanced energy transfer in Nd3+/Cr3+ co-doped Ca3Ga2Ge3O12 phosphors with near-infrared and long-lasting luminescence properties

2016 ◽  
Vol 4 (16) ◽  
pp. 3396-3402 ◽  
Author(s):  
Huihong Lin ◽  
Ting Yu ◽  
Gongxun Bai ◽  
Ming-Kiu Tsang ◽  
Qinyuan Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Solid State Reaction ◽  
Near Infrared ◽  
Luminescence Properties ◽  
Conventional Solid State Reaction ◽  
Co Doped

The phosphors of Ca3Ga2Ge3O12 (CGGG) co-doped with Nd3+ and Cr3+ ions were synthesized using conventional solid-state reaction techniques.

scholarly journals Synthesis and luminescence properties of novel Eu2+/3+, Ce3+ ion single- and co-doped BaZn2(PO4)2 phosphors for white-light applications

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24305-24313 ◽  
Author(s):  
Yuhan Zhu ◽  
Wenjun Wang ◽  
Zefeng Xu ◽  
Qi Luo ◽  
Ling Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Luminescence Properties ◽  
Co Doped

A series of novel Eu2+/3+, Ce3+ ion single- and co-doped BaZn2(PO4)2 samples were prepared via a high-temperature solid-state reaction.

scholarly journals Co-doping effect of Mn2+ on fluorescence thermostability of Ca-α-sialon:Eu2+ phosphors

RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42211-42217 ◽  
Author(s):  
Jia Ni ◽  
Qian Liu ◽  
Zhenzhen Zhou ◽  
Guanghui Liu
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Doping Effect ◽  
Enhanced Fluorescence ◽  
Reaction Method ◽  
Co Doping ◽  
Co Doped

To reveal Mn2+ influence on emission of Ca-α-sialon:Eu2+, the Mn2+ and Eu2+ co-doped phosphors were synthesized by a solid state reaction method. The produced powders show an enhanced fluorescence thermostability and the roles of Mn2+ addition have been investigated.

Na+ and Pr3+ co-doped orange-emitting CaYAl3O7 phosphors: synthesis, luminescence properties and theoretical calculations

2018 ◽  
Vol 47 (48) ◽  
pp. 17515-17524 ◽  
Author(s):  
Fengjun Chun ◽  
Binbin Zhang ◽  
Honggang Liu ◽  
Wen Deng ◽  
Wen Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid State Reaction ◽  
Theoretical Calculations ◽  
Solid State Reaction Method ◽  
Luminescence Properties ◽  
Reaction Method ◽  
Co Doped

A series of Na+ and Pr3+ co-doped orange-emitting CaYAl3O7 (CYAO) phosphors were prepared by a conventional high-temperature solid-state reaction method.

Luminescence properties of chlorine and oxygen co-doped ZnS nanoparticles synthesized by a solid-state reaction

2014 ◽  
Vol 40 (8) ◽  
pp. 13151-13157 ◽  
Author(s):  
Zhong Chen ◽  
Xiao Xia Li ◽  
Guoping Du ◽  
Quanmao Yu ◽  
Bo Li ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Luminescence Properties ◽  
Zns Nanoparticles ◽  
Co Doped
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