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[期刊论文]

Spectroscopic and energy transfer properties of NaTb(WO4)2 phosphor and crystal sensitized by Dy3+

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author:

Zhang, Jiaqi (Zhang, Jiaqi.) [1] | Huang, Yidong (Huang, Yidong.) [2] | Gong, Xinghong (Gong, Xinghong.) [3] | Unfold

Indexed by:

EI Scopus SCIE

Abstract:

Two series of Dy3+:NaTb(WO4)2 and Dy3+:NaGd(WO4)2 phosphors doped with different Dy3+ concentrations were prepared by the solid-state reaction method. Dy3+-> Tb3+ energy transfer and fluorescence properties of Dy3+:NaTb(WO4)2 phosphors doped with different Dy3+ concentrations were firstly investigated by exciting at 455 nm. Strong Tb3+ green fluorescence around 545 nm was observed in the Dy3+:NaTb(WO4)2 phosphors due to the efficient Dy3+-> Tb3+ energy transfer. Excited at 455 nm, polarized spectroscopic properties of a (9.28 at.%) Dy3+:NaTb(WO4)2 crystal grown by the Czochralski method were studied at room temperature. The peak ab-sorption cross-sections of the crystal at 454.6 nm, corresponding to the 6H15/2 -> 4I15/2 transition of Dy3+ , are 2.74 x 10-21 and 3.93 x 10-21 cm2 for sigma and pi polarizations, respectively. The peak emission cross-sections of the crystal, corresponding to the 5D4 -> 7F5 transition of Tb3+ , are 5.6 x 10-21 at 545 nm and 11.5 x 10-21 cm2 at 548.6 nm for sigma and pi polarizations, respectively. Tb3+ green fluorescence around 545 nm was obviously enhanced in the crystal excited at 455 nm due to the Dy3+-> Tb3+ energy transfer. The results show that Dy3+ can be used as sensitizing ions to enhance the visible fluorescence of Tb3+ in the NaTb(WO4)2 phosphor and crystal excited at 455 nm.

Keyword:

Dy3+ Dy 3+sensitizing ions Dy 3+? Tb 3+energy transfer NaTb(WO4)2 crystal NaTb(WO4)2 phosphor Spectroscopic property

Community:

  • [ 1 ] [Zhang, Jiaqi]Fuzhou Univ, Coll Chem, Fuzhou 350116, Fujian, Peoples R China
  • [ 2 ] [Zhang, Jiaqi]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Huang, Yidong]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Gong, Xinghong]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Huang, Jianhua]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
  • [ 6 ] [Lin, Yanfu]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
  • [ 7 ] [Chen, Yujin]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • [Chen, Yujin]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China;;

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Source :

JOURNAL OF LUMINESCENCE

ISSN: 0022-2313

Year: 2023

Volume: 257

3 . 3

JCR@2023

3 . 3 0 0

JCR@2023

ESI Discipline: PHYSICS;

ESI HC Threshold:30

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 4

30 Days PV: 0

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