Double emitting phosphor NaSr4(BO3) 3:Ce3, Tb3 for near-UV light-emitting diodes

Chongfeng Guo; Xu Ding; Hyo Jin Seo; Zhaoyu Ren; Jintao Bai

doi:10.1016/j.optlastec.2011.04.006

Double emitting phosphor NaSr4(BO3) 3:Ce3, Tb3 for near-UV light-emitting diodes

Chongfeng Guo^*, Xu Ding, Hyo Jin Seo, Zhaoyu Ren, Jintao Bai

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

Abstract

Blue and green double emitting phosphor, Ce³ and Tb³ co-doped NaSr₄(BO₃)₃, was synthesized in a weak reducing atmosphere by a conventional high temperature solid-state reaction technique. For comparison, Ce³ or Tb³ singly doped NaSr₄(BO₃)₃ was also prepared. The emission and excitation spectra of all samples have been investigated. NaSr ₄(BO₃)₃:Tb³ excitation includes a strong absorption at about 240 nm and some weak sharp lines in near-ultraviolet (n-UV) spectral region. The excitation of Ce³ and Tb³ co-doped NaSr₄(BO₃)₃ shows a strong broad band absorption in the n-UV region from the contribution of Ce³, which makes it suitable for excitation by a n-UV LED chip. The emission of NaSr ₄(BO₃)₃:Ce³,Tb³ consists of a blue emission band from Ce³ and a green emission from Tb ³ under the excitation of n-UV light. Energy transfer between Ce ³ and Tb³ is also discussed, and the relative intensity of blue emission and green emission could be tuned by adjusting the concentration of Ce³ and Tb³. The phosphor NaSr₄(BO ₃)₃:Ce³,Tb³ could be considered as a double emission phosphor for n-UV excited white light-emitting diodes.

Original language	English
Pages (from-to)	1351-1354
Number of pages	4
Journal	Optics and Laser Technology
Volume	43
Issue number	7
DOIs	https://doi.org/10.1016/j.optlastec.2011.04.006
Publication status	Published - Oct 2011

Keywords

LED
Optical materials
Phosphor

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10.1016/j.optlastec.2011.04.006

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title = "Double emitting phosphor NaSr4(BO3) 3:Ce3, Tb3 for near-UV light-emitting diodes",

abstract = "Blue and green double emitting phosphor, Ce3 and Tb3 co-doped NaSr4(BO3)3, was synthesized in a weak reducing atmosphere by a conventional high temperature solid-state reaction technique. For comparison, Ce3 or Tb3 singly doped NaSr4(BO3)3 was also prepared. The emission and excitation spectra of all samples have been investigated. NaSr 4(BO3)3:Tb3 excitation includes a strong absorption at about 240 nm and some weak sharp lines in near-ultraviolet (n-UV) spectral region. The excitation of Ce3 and Tb3 co-doped NaSr4(BO3)3 shows a strong broad band absorption in the n-UV region from the contribution of Ce3, which makes it suitable for excitation by a n-UV LED chip. The emission of NaSr 4(BO3)3:Ce3,Tb3 consists of a blue emission band from Ce3 and a green emission from Tb 3 under the excitation of n-UV light. Energy transfer between Ce 3 and Tb3 is also discussed, and the relative intensity of blue emission and green emission could be tuned by adjusting the concentration of Ce3 and Tb3. The phosphor NaSr4(BO 3)3:Ce3,Tb3 could be considered as a double emission phosphor for n-UV excited white light-emitting diodes.",

keywords = "LED, Optical materials, Phosphor",

author = "Chongfeng Guo and Xu Ding and \{Jin Seo\}, Hyo and Zhaoyu Ren and Jintao Bai",

year = "2011",

month = oct,

doi = "10.1016/j.optlastec.2011.04.006",

language = "English",

volume = "43",

pages = "1351--1354",

journal = "Optics and Laser Technology",

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TY - JOUR

T1 - Double emitting phosphor NaSr4(BO3) 3:Ce3, Tb3 for near-UV light-emitting diodes

AU - Guo, Chongfeng

AU - Ding, Xu

AU - Jin Seo, Hyo

AU - Ren, Zhaoyu

AU - Bai, Jintao

PY - 2011/10

Y1 - 2011/10

N2 - Blue and green double emitting phosphor, Ce3 and Tb3 co-doped NaSr4(BO3)3, was synthesized in a weak reducing atmosphere by a conventional high temperature solid-state reaction technique. For comparison, Ce3 or Tb3 singly doped NaSr4(BO3)3 was also prepared. The emission and excitation spectra of all samples have been investigated. NaSr 4(BO3)3:Tb3 excitation includes a strong absorption at about 240 nm and some weak sharp lines in near-ultraviolet (n-UV) spectral region. The excitation of Ce3 and Tb3 co-doped NaSr4(BO3)3 shows a strong broad band absorption in the n-UV region from the contribution of Ce3, which makes it suitable for excitation by a n-UV LED chip. The emission of NaSr 4(BO3)3:Ce3,Tb3 consists of a blue emission band from Ce3 and a green emission from Tb 3 under the excitation of n-UV light. Energy transfer between Ce 3 and Tb3 is also discussed, and the relative intensity of blue emission and green emission could be tuned by adjusting the concentration of Ce3 and Tb3. The phosphor NaSr4(BO 3)3:Ce3,Tb3 could be considered as a double emission phosphor for n-UV excited white light-emitting diodes.

AB - Blue and green double emitting phosphor, Ce3 and Tb3 co-doped NaSr4(BO3)3, was synthesized in a weak reducing atmosphere by a conventional high temperature solid-state reaction technique. For comparison, Ce3 or Tb3 singly doped NaSr4(BO3)3 was also prepared. The emission and excitation spectra of all samples have been investigated. NaSr 4(BO3)3:Tb3 excitation includes a strong absorption at about 240 nm and some weak sharp lines in near-ultraviolet (n-UV) spectral region. The excitation of Ce3 and Tb3 co-doped NaSr4(BO3)3 shows a strong broad band absorption in the n-UV region from the contribution of Ce3, which makes it suitable for excitation by a n-UV LED chip. The emission of NaSr 4(BO3)3:Ce3,Tb3 consists of a blue emission band from Ce3 and a green emission from Tb 3 under the excitation of n-UV light. Energy transfer between Ce 3 and Tb3 is also discussed, and the relative intensity of blue emission and green emission could be tuned by adjusting the concentration of Ce3 and Tb3. The phosphor NaSr4(BO 3)3:Ce3,Tb3 could be considered as a double emission phosphor for n-UV excited white light-emitting diodes.

KW - LED

KW - Optical materials

KW - Phosphor

UR - https://www.scopus.com/pages/publications/79955651517

U2 - 10.1016/j.optlastec.2011.04.006

DO - 10.1016/j.optlastec.2011.04.006

M3 - Article

AN - SCOPUS:79955651517

SN - 0030-3992

VL - 43

SP - 1351

EP - 1354

JO - Optics and Laser Technology

JF - Optics and Laser Technology

IS - 7

ER -

Double emitting phosphor NaSr4(BO3) 3:Ce3, Tb3 for near-UV light-emitting diodes

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