Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 26, 2020
Previous Article Next Article

Color tuning in Ca3−xMx(PO4)2:Eu2+ (M = Sr, Ba) phosphors via cation substitution

Author affiliations

Abstract

A series of Ca3−xMx(PO4)2:Eu2+ (M = Sr, Ba) phosphors were prepared via a high-temperature solid-state reaction process. The X-ray diffraction and Rietveld refinements were used to verify the incorporations of Eu2+ into Ca3−xMx(PO4)2:Eu2+ (M = Sr, Ba). Upon excitation at 365 nm, the Ca3(PO4)2:Eu2+ phosphors exhibit a relatively narrow-band blue emission peaking at 415 nm attributed to the electric radiation transitions 4f65d1 → 4f7 of Eu2+. Moreover, the structural phase transformation and the unusual emission color variation of Ca3−xMx(PO4)2:Eu2+ (M = Sr, Ba) phosphors via the replacement of cationic M2+ (Sr2+, Ba2+) were reported. Upon excitation at the same wavelength of 365 nm, the emission peaks of Eu2+-doped Ca3−xSrx(PO4)2 phosphors red-shifted from 411 to 524 nm with increasing Sr/Ca ratio. The emission thermal stability of M3(PO4)2:Eu2+ (M = Ca, Sr, Ba) was comparatively characterized and the difference was related to the specific host structural features. The combination of host composition design may provide a novel strategy to obtain white light and tunable luminescence.

Graphical abstract: Color tuning in Ca3−xMx(PO4)2:Eu2+ (M = Sr, Ba) phosphors via cation substitution

Back to tab navigation

Article information


Submitted
25 Mar 2020
Accepted
05 May 2020
First published
05 May 2020

Dalton Trans., 2020,49, 8949-8958
Article type
Paper

Color tuning in Ca3−xMx(PO4)2:Eu2+ (M = Sr, Ba) phosphors via cation substitution

H. Zhang, D. Yuan, X. Mi, X. Liu and J. Lin, Dalton Trans., 2020, 49, 8949
DOI: 10.1039/D0DT01130D

Social activity

Search articles by author

Spotlight

Advertisements