Enhanced photoluminescence of water soluble YVO4:Ln3+ (Ln = Eu, Dy, Sm, and Ce) nanocrystals by Ba2+ doping

Guofeng Wang, Weiping Qin, Daisheng Zhang, Lili Wang, Guodong Wei, Peifen Zhu, Ryongjin Kim

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83 Scopus citations

Abstract

Water soluble YVO4:Ln3+ and YVO4:Ln 3+/Ba2+ (Ln = Ce, Dy, Eu, and Sm) nanocrystals were synthesized by a poly vinylpyrrolidone-assisted hydrothermal method. Under the excitation of the host absorption, phosphors can emit blue light for YVO 4:Ce3+/Ba2+, yellow light for YVO 4:Dy3+/Ba2+, red light for YVO 4:Eu3+/Ba2+, and reddish orange light for YVO4:Sm3+/Ba2+. In comparison with those of YVO4:Ln3+ nanocrystals, the emissions of YVO 4:Ln3+/Ba2+ are greatly enhanced. Furthermore, the excitation spectra of YVO4:Eu3+/Ba2+ and YVO4:Dy3+/Ba2+ show the similar features, which are different from those of YVO4:Sm3+/Ba2+ and YVO4:Ce3+/Ba2+.

Original languageEnglish
Pages (from-to)17042-17045
Number of pages4
JournalJournal of Physical Chemistry C
Volume112
Issue number44
DOIs
StatePublished - 6 Nov 2008
Externally publishedYes

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