scholarly journals Structure and photoluminescence properties of novel Sr6Ca4(PO4)6F2:Re (Re = Eu2+, Mn2+) phosphors with energy transfer for white-emitting LEDs

RSC Advances ◽  
2017 ◽  
Vol 7 (65) ◽  
pp. 41282-41288 ◽  
Author(s):  
Hongwei Xu ◽  
Lili Wang ◽  
Dan Qu ◽  
Zhiyun Si ◽  
Jinsheng Shi
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Photoluminescence Properties ◽  
Light Emitting

A series of Sr6Ca4(PO4)6F2:Eu2+,Mn2+ phosphors were synthesized by traditional solid state reaction. Through controlling the ratio of Eu2+ and Mn2+, emission colors can be tuned from blue to yellow, including white-light-emitting.

Tunable white-light emission via energy transfer in single-phase LiGd(WO4)2:Re3+ (Re = Tm, Tb, Dy, Eu) phosphors for UV-excited WLEDs

RSC Advances ◽  
2015 ◽  
Vol 5 (117) ◽  
pp. 96272-96280 ◽  
Author(s):  
Yang Zhang ◽  
Weitao Gong ◽  
Jingjie Yu ◽  
Yuan Lin ◽  
Guiling Ning
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Single Phase ◽  
Light Emission ◽  
White Light Emission ◽  
Energy Transfer Mechanism ◽  
Photoluminescence Properties ◽  
Light Emitting

Novel single-phase white-light-emitting phosphors have been successfully synthesized by a solid-state reaction and their photoluminescence properties and energy transfer mechanism have been carefully investigated.

Synthesis and Luminescence Properties of Na3YSi2O7:Sm3+, Eu3+ Phosphor

2014 ◽  
Vol 633-634 ◽  
pp. 306-309 ◽  
Author(s):  
Jia Yue Sun ◽  
Liu Han ◽  
Qiu Mei Di ◽  
Qi Guang Xu
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Emission Spectra ◽  
Potential Candidate ◽  
Photoluminescence Excitation ◽  
Light Emitting ◽  
White Light Emitting Diodes

Novel Na3YSi2O7: Sm3+, Eu3+phosphors for white light-emitting diodes were prepared by high-temperature solid-state reaction. The photoluminescence excitation and emission spectra, energy transfer from Eu2+to Tb3+are investigated in detail. The current research suggests that Na3YSi2O7: Sm3+, Eu3+phosphor is a potential candidate for application in Phosphor-converted LEDs.

scholarly journals Multiple Energy Transfer in Luminescence-Tunable Single-Phased Phosphor NaGdTiO4: Tm3+, Dy3+, Sm3+

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1249 ◽  
Author(s):  
Jun Xiao ◽  
Cong Wang ◽  
Xin Min ◽  
Xiaowen Wu ◽  
Yangai Liu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
White Light ◽  
Single Phase ◽  
Light Emission ◽  
Photoluminescence Properties ◽  
Light Emitting ◽  
Energy Transfers ◽  
White Light Emitting Diodes ◽  
Tunable Emission

Advances in solid-state white-light-emitting diodes (WLEDs) necessitate the urgent development of highly efficient single-phase phosphors with tunable photoluminescence properties. Herein, the Tm3+, Dy3+, and Sm3+ ions are incorporated into the orthorhombic NaGdTiO4 (NGT) phosphors, resulting in phosphors that fulfill the aforementioned requirement. The emission spectrum of Tm3+ ions overlaps well with the adsorption spectra of both Dy3+ and Sm3+ ions. Under the excitation at 358 nm, the single-phase NaGdTiO4: Tm3+, Dy3+, Sm3+ phosphor exhibits tunable emission peaks in the blue, yellow, and red regions simultaneously, resulting in an intense white-light emission. The coexisting energy transfer behaviors from Tm3+ to Dy3+ and Sm3+ ions and the energy transfer from Dy3+ to Sm3+ ions are demonstrated to be responsible for this phenomenon. The phosphors with multiple energy transfers enable the development of single-phase white-light-emitting phosphors for phosphor-converted WLEDs.

A new single-phase white-light-emitting CaWO4:Dy3+ phosphor: synthesis, luminescence and energy transfer

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62527-62533 ◽  
Author(s):  
Yang Zhang ◽  
Weitao Gong ◽  
Jingjie Yu ◽  
Hongchang Pang ◽  
Qiang Song ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Single Phase ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Photoluminescence Properties ◽  
Light Emitting

A new single-phase white-emitting CaWO4:Dy3+ phosphor has been successfully synthesized and the photoluminescence properties and energy-transfer mechanism have been carefully investigated.

The Morphologies and Photoluminescence of Ce3+-Doped 0.5La2O3-2SrO-0.5Al2O3 Phosphors with SrF2

2016 ◽  
Vol 680 ◽  
pp. 228-232
Author(s):  
Xi Guang Gu ◽  
Ren Li Fu ◽  
Ye Tang ◽  
Fang Yang
Keyword(s):  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Emission Intensity ◽  
Solid State Reaction Method ◽  
Conventional Solid State Reaction ◽  
Light Emitting ◽  
Reaction Method ◽  
Reducing Atmosphere ◽  
White Light Emitting Diodes

Ce3+-doped 0.5La2O3-2SrO-0.5Al2O3 (LSA:Ce) phosphors had been successfully synthesized using a conventional solid-state reaction method under reducing atmosphere (H2/N2 =1/5). The phase, morphologies and luminescence properties of the LSA:Ce phosphors were investigated. The emission intensity of LSA:Ce phosphors was improved by the addition of SrF2 as flux, and red shift of PL spectra peak was observed in this phosphors. Research results shown that the LSA:Ce phosphors have the potential to meet the development of white light-emitting diodes.

Orange- to green-emitting Li(Sr,Ca)4(BO3)3:Eu2+ phosphor: emission-tunable properties and white light emitting diode application

RSC Advances ◽  
2016 ◽  
Vol 6 (86) ◽  
pp. 82824-82831 ◽  
Author(s):  
Hua Yu ◽  
Degang Deng ◽  
Youjie Hua ◽  
Chenxia Li ◽  
Shiqing Xu
Keyword(s):  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Tunable Properties

An emission-tunable phosphor, Eu2+-activated LiSr(4−x−y)Cax(BO3)3:yEu2+ phosphor, was synthesized by high temperature solid state reaction.

Synergy in the energy transfer between ligands and EuIII ions in molecular europium complexes: single-component white light-emitting luminogens

2020 ◽  
Vol 8 (25) ◽  
pp. 8643-8653 ◽  
Author(s):  
Rachna Devi ◽  
Kasturi Singh ◽  
Sivakumar Vaidyanathan
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
White Light ◽  
Lanthanide Complexes ◽  
Solution Process ◽  
Single Component ◽  
Solid State Lighting ◽  
Structural Flexibility ◽  
Europium Complexes ◽  
Light Emitting

Due to their structural flexibility and easy solution process capability, single-component white light-emitting pure organo-lanthanide complexes have been considered as promising candidates for solid-state lighting.

Photoluminescence properties of single-component white-emitting Ca9Bi(PO4)7:Ce3+,Tb3+,Mn2+phosphors for UV LEDs

2015 ◽  
Vol 3 (27) ◽  
pp. 7096-7104 ◽  
Author(s):  
Kai Li ◽  
Mengmeng Shang ◽  
Yang Zhang ◽  
Jian Fan ◽  
Hongzhou Lian ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction Method ◽  
Photoluminescence Properties ◽  
Light Emitting ◽  
Reaction Method ◽  
White Light Emitting Diodes ◽  
Uv Leds ◽  
Uv Excitation

A series of Ca9Bi(PO4)7:Ce3+,Tb3+,Mn2+phosphors synthesizedviathe high-temperature solid-state reaction method can emit intense tunable color from purple-blue to red including white under UV excitation, which shows their potential application in UV-pumped white-light-emitting diodes.

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