Luminescence Properties of Novel Red Phosphor NaSrPO4:Eu3+

2012 ◽  
Vol 502 ◽  
pp. 128-131 ◽  
Author(s):  
Jia Yue Sun ◽  
Xiang Yan Zhang ◽  
Ji Cheng Zhu ◽  
Yi Ning Sun ◽  
Hai Yan Du
Keyword(s):  
Solid State ◽  
White Light ◽  
Dipole Transition ◽  
Luminescence Properties ◽  
Excitation Wavelength ◽  
Conventional Solid State Reaction ◽  
Red Phosphor ◽  
Uv Led ◽  
Red Luminescence ◽  
Uv Excitation

A novel red-emitting NaSrPO4:Eu3+ phosphor was prepared by a conventional solid-state reaction. The luminescence properties and temperature dependence of 4:Eu3+ were investigated. The phosphor exhibited red luminescence under the near-UV excitation of 395 nm, corresponding to the 5F0→7L6 transition of Eu3+ ions, which matched well with the excitation wavelength of near-UV LED chips. The electronic transition due to 5D0→7F2 transition of Eu3+ ions is stronger than the magnetic dipole transition due to 5D0→7F1 of Eu3+ ions. Furthermore, Eu3+-doped NaSrPO4 phosphor shows higher thermally stable luminescence comparable tocommercially available Y3Al5O12:Ce3+ phosphor. All the investigated suggested that this newly developed phosphor could find applications in white light devise utilizing InGaN-based excitation in the near-UV chips.

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.

scholarly journals A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+: synthesis, crystal structure and luminescence properties

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24577-24583 ◽  
Author(s):  
Haikun Liu ◽  
Libing Liao ◽  
Maxim S. Molokeev ◽  
Qingfeng Guo ◽  
Yuanyuan Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Single Phase ◽  
Luminescence Properties ◽  
Light Emitting ◽  
State Technology

A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+ was prepared through traditional high-temperature solid state technology.

Synthesis and luminescence properties of Sr2−xY x Si5−xAl x N8:Eu2+ red phosphor for white light-emitting diodes

2018 ◽  
Vol 53 (14) ◽  
pp. 10240-10248 ◽  
Author(s):  
Dongsheng Zhou ◽  
Wentao Zhang ◽  
Guilin Yan ◽  
Yiyao Wang ◽  
Qi Xu ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Luminescence Properties ◽  
Red Phosphor ◽  
Light Emitting ◽  
White Light Emitting Diodes

Novel Mn4+-activated layered oxide-fluoride perovskite-type KNaMoO2F4 red phosphor for wide gamut warm white light-emitting diodes backlight

2021 ◽  
Author(s):  
Jiao Wu ◽  
Bo Wang ◽  
Zhiyuan Liu ◽  
Kang Zhang ◽  
Xiaoshuang Li ◽  
...  
Keyword(s):  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Red Phosphor ◽  
Red Emission ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Perovskite Type

Mn4+-activated oxidefluoride phosphors are attractive for application in wide solid-state lighting devices because of its distinct red emission at about 630 nm and the abundant storage of Mn4+ ion. However,...

Visible-emitting hybrid sol–gel materials comprising lanthanide ions: thin film behaviour and potential use as phosphors for solid-state lighting

2014 ◽  
Vol 38 (12) ◽  
pp. 5793-5800 ◽  
Author(s):  
Xiaoguang Huang ◽  
Gaël Zucchi ◽  
Jacqueline Tran ◽  
Robert B. Pansu ◽  
Arnaud Brosseau ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solid State ◽  
Sol Gel ◽  
Lanthanide Ions ◽  
Solid State Lighting ◽  
Red Phosphor ◽  
Hybrid Silica ◽  
Uv Led ◽  
Potential Use

Luminescent thin films of hybrid silica-based materials were studied and an Eu-containing one was coated on a near-UV LED chip to be investigated as a red phosphor.

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.

An ESIPT fluorophore with a switchable intramolecular hydrogen bond for applications in solid-state fluorochromism and white light generation

2016 ◽  
Vol 4 (10) ◽  
pp. 2011-2016 ◽  
Author(s):  
Ken-ichi Sakai ◽  
Saki Tsuchiya ◽  
Takemitsu Kikuchi ◽  
Tomoyuki Akutagawa
Keyword(s):  
Hydrogen Bond ◽  
Solid State ◽  
Intramolecular Hydrogen Bond ◽  
White Light ◽  
Excitation Wavelength ◽  
Acid Base ◽  
White Light Generation ◽  
Fluorescence Color ◽  
Light Generation ◽  
Intramolecular Hydrogen

Acid/base-switched solid-state fluorochromism and excitation-wavelength-dependent fluorescence color tuning have been demonstrated using an ESIPT fluorophore with a switchable intramolecular hydrogen bond.

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