scholarly journals Highly efficient red emission and multiple energy transfer properties of Dy3+/Mn4+co-doped Ca14Zn6Ga10O35phosphors

RSC Advances ◽  
2017 ◽  
Vol 7 (28) ◽  
pp. 17244-17253 ◽  
Author(s):  
Yiyang Zhou ◽  
Weiren Zhao ◽  
Junhua Chen ◽  
Zifeng Liao
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Technique ◽  
Red Emission ◽  
Highly Efficient ◽  
Transfer Properties ◽  
Co Doped

Novel Dy3+/Mn4+co-doped Ca14Zn6Ga10O35phosphors have been synthesized by a solid state reaction technique.

Luminescent Properties of Eu2+-Activated SrAl2Si2O8 as an Potential Blue Phosphor for near UV LED Chips

2013 ◽  
Vol 750-752 ◽  
pp. 956-960 ◽  
Author(s):  
Li Jun Luo ◽  
Yi Wen Zhu ◽  
Ping Chen
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Solid State Reaction ◽  
Luminescent Properties ◽  
Solid State Reaction Technique ◽  
Near Ultraviolet ◽  
Blue Phosphor ◽  
Uv Led ◽  
Host Lattices ◽  
Uv Range

The phosphors SrAl2Si2O8 doped with different Eu2+ concentration were prepared by solid-state reaction technique, and their photoluminescent properties at different temperature were investigated. With the increase of Eu2+ content, two emission bands can be observed and this can be interpreted as Eu2+ ions occupying two types of sites in the crystal lattice. And their lifetime is decreasing, this result can be due to energy transfer among Eu2+ ions nonradiately at higher concentration of Eu2+ ions in the host lattices. The phosphor SrAl2Si2O8:0.40Eu shares intense blue emitting with broad excitation in the near-UV range. This phosphor may be an excellent blue phosphor for near ultraviolet InGaN-based white diodes.

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 Tunable Yellow-Red Emission via Energy Transfer in Dy3+, Mn4+: NaLaMgWO6 Phosphors for UV-Excited LED

2021 ◽  
Author(s):  
yonghua wu ◽  
Fugui Yang ◽  
Fengpo Yan ◽  
Ruijuan Zuo
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Solid State Reaction ◽  
Red Light ◽  
Emission Spectra ◽  
Excitation Source ◽  
Red Emission ◽  
Phase Purity ◽  
Emission Performance ◽  
Light Excitation

Abstract The Dy3+, Mn4+: NaLaMgWO6 phosphors are synthesized successfully using the technique of solid-state reaction at 1150 ℃. The XRD and SEM-EDS are measured to analyze the phase purity. The concentrations of Dy3+, Mn4+, Mg2+, Na+, La3+ and W6+ are measured by ICP. The absorption and excited spectra are presented, which indicate the 390 nm is suitable for the tunable yellow-red light excitation. Using the 390 nm LED as the excitation source, the emission spectra with different doped concentrations ratios of Dy3+to Mn4+ are obtained, which shows good tunable yellow-red emission performance.

Quantum Cutting Downconversion in Tb3+,Yb3+ Codoped Sr3AlO4F Phosphor

2013 ◽  
Vol 683 ◽  
pp. 172-175 ◽  
Author(s):  
Jia Yue Sun ◽  
Yi Ning Sun ◽  
Jun Hui Zeng ◽  
Ji Cheng Zhu ◽  
Hai Yan Du
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Quantum Efficiency ◽  
Solid State Reaction ◽  
Near Infrared ◽  
Luminescence Spectra ◽  
Promising Candidate ◽  
Quantum Cutting ◽  
Co Doped

A near Infrared (NIR) quantum cutting (QC) Sr3AlO4F:Tb3+,Yb3+phosphor was synthesized by the conventional high temperature solid-state reaction. The luminescence spectra both in visible (VIS) and NIR regions and decay lifetime curves of Tb3+have been measured to prove energy transfer (ET) from Tb3+to Yb3+. Quantum efficiency (QE) related to Yb3+concentration was calculated and the highest QE was found to be 135% hen Yb3+doped concentration at 20%. The present Tb3+and Yb3+co-doped Sr3AlO4F phosphor may be a promising candidate to modify the spectral of the solar light.

Tunable luminescence and energy transfer of a Eu2+/Mn2+ co-doped Sr3NaY(PO4)3F phosphor for white LEDs

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87493-87501 ◽  
Author(s):  
Zaifa Yang ◽  
Denghui Xu ◽  
Jiangnan Du ◽  
Xuedong Gao ◽  
Jiayue Sun
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Solid State Reaction ◽  
Single Phase ◽  
White Leds ◽  
Color Tunable ◽  
Co Doped

A series of single-phase and color-tunable Sr3NaY(PO4)3F:Eu2+, Mn2+ phosphors have been successfully prepared via the solid-state reaction.

scholarly journals The role of Ln3+ (Ln = Eu, Yb) in persistent red luminescence in MgGeO3:Mn2+

2017 ◽  
Vol 5 (34) ◽  
pp. 8893-8900 ◽  
Author(s):  
Y. Katayama ◽  
T. Kayumi ◽  
J. Ueda ◽  
P. Dorenbos ◽  
B. Viana ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Technique ◽  
Red Luminescence ◽  
Co Doped

In this paper, Mn2+ and Ln3+ (Ln = Eu, Yb) co-doped MgGeO3 phosphors were prepared using a solid state reaction technique, and their optical properties were investigated.

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.

scholarly journals Crystal structure, optical spectroscopy and energy transfer properties in NaZnPO4:Ce3+, Tb3+ phosphors for UV-based LEDs

RSC Advances ◽  
2020 ◽  
Vol 10 (37) ◽  
pp. 21867-21875
Author(s):  
K. Saidi ◽  
M. Dammak
Keyword(s):  
Crystal Structure ◽  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Optical Spectroscopy ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Reaction Method ◽  
Transfer Properties

A series of Ce3+, Tb3+ and, Ce3+/Tb3+ doped NaZnPO4(NZPO) phosphors synthesized via the high-temperature solid-state reaction method were investigated.

scholarly journals Luminescence and energy transfer of Tm3+ and Dy3+ co-doped Na3ScSi2O7 phosphors

RSC Advances ◽  
2019 ◽  
Vol 9 (48) ◽  
pp. 27817-27824 ◽  
Author(s):  
Chao Wei ◽  
Denghui Xu ◽  
Zaifa Yang ◽  
Yetong Jia ◽  
Xiong Li ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Conventional Solid State Reaction ◽  
Reaction Method ◽  
Co Doped

A series of Tm3+ and Dy3+ ions single- or co-doped Na3ScSi2O7 (NSSO) phosphors were prepared by a conventional solid state reaction method.

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