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author:

Zhou, Jiangcong (Zhou, Jiangcong.) [1] | Zhang, Yanling (Zhang, Yanling.) [2] | Yao, Yao (Yao, Yao.) [3] | Wang, Bo (Wang, Bo.) [4] | Lai, Yiqing (Lai, Yiqing.) [5] | Huang, Xiaotian (Huang, Xiaotian.) [6] | Wu, Quansheng (Wu, Quansheng.) [7]

Indexed by:

EI Scopus SCIE

Abstract:

In this study, fully concentrated Eu3+-based Na3Eu(VO4)(2)vanadate phosphor was synthesized by solid-state reaction process. The as-obtained product presented a single monoclinic phase with the space group ofCc(9) and rod shape with micron size, as revealed by X-ray diffraction pattern and scanning electron microscope. Their luminescence performances were investigated by the excitation and emission spectra, temperature-dependent photoluminescence spectra. At the excitation of 395 nm, they displayed a strong red emission at 620 nm and the Gd(3+)and La(3+)ions incorporation did not lead to luminescent quenching in this Na3Eu(VO4)(2)phosphor. When the temperature was as high as 420 K, the emission intensity kept 84% of the initial value at 303 K, which implied the Na3Eu(VO4)(2)phosphors had excellent thermal stability. Further, the activation energy (E-a) was calculated to be 0.326 eV. Meanwhile, the quantum yield of this phosphor was as high as 70.6%. Finally, by coating the mixtures of red phosphors Na3Eu(VO4)(2), commercial green phosphors (Sr, Ba)(2)SiO4:Eu(2+)and blue phosphors BaMgAl10O17:Eu(2+)on the surface of NUV chip (395 nm), a LED lamp was obtained and exhibited white light with good color rendering index of 93. These results exhibited the commercialized prospect of Na3Eu(VO4)(2)compound as a red phosphor in the field of solid-state lighting.

Keyword:

Community:

  • [ 1 ] [Zhou, Jiangcong]Longyan Univ, Coll Chem & Mat Sci, Longyan 364000, Fujian, Peoples R China
  • [ 2 ] [Zhang, Yanling]Longyan Univ, Coll Chem & Mat Sci, Longyan 364000, Fujian, Peoples R China
  • [ 3 ] [Yao, Yao]Longyan Univ, Coll Chem & Mat Sci, Longyan 364000, Fujian, Peoples R China
  • [ 4 ] [Huang, Xiaotian]Longyan Univ, Coll Chem & Mat Sci, Longyan 364000, Fujian, Peoples R China
  • [ 5 ] [Wu, Quansheng]Longyan Univ, Coll Chem & Mat Sci, Longyan 364000, Fujian, Peoples R China
  • [ 6 ] [Wang, Bo]Wuyi Univ, Sch Appl Phys & Mat, Jiangmen 529020, Guangdong, Peoples R China
  • [ 7 ] [Zhou, Jiangcong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 8 ] [Lai, Yiqing]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China

Reprint 's Address:

  • 周江聪

    [Zhou, Jiangcong]Longyan Univ, Coll Chem & Mat Sci, Longyan 364000, Fujian, Peoples R China;;[Wu, Quansheng]Longyan Univ, Coll Chem & Mat Sci, Longyan 364000, Fujian, Peoples R China;;[Wang, Bo]Wuyi Univ, Sch Appl Phys & Mat, Jiangmen 529020, Guangdong, Peoples R China;;[Zhou, Jiangcong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China

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Source :

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS

ISSN: 0957-4522

Year: 2020

Issue: 15

Volume: 31

Page: 12872-12879

2 . 4 7 8

JCR@2020

2 . 8 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:196

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

Online/Total:122/10048162
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