Controllable synthesis and tunable luminescence properties of Y 2(WO 4) 3:Ln 3+ (Ln = Eu, Yb/Er, Yb/Tm and Yb/Ho) 3D hierarchical architectures

Shaohua Huang, Xiao Zhang, Liuzhen Wang, Ling Bai, Jie Xu, Chunxia Li, Piaoping Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

81 Citations (Scopus)

Abstract

Yttrium tungstate precursors with novel 3D hierarchical architectures assembled from nanosheet building blocks were successfully synthesized by a hydrothermal method with the assistance of sodium dodecyl benzenesulfonate (SDBS). After calcination, the precursors were easily converted to Y 2(WO 4) 3 without an obvious change in morphology. The as-prepared precursors and Y 2(WO 4) 3 were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM), and photoluminescence (PL) spectra, respectively. The results reveal that the morphology and dimensions of the as-prepared precursors can be effectively tuned by altering the amounts of organic SDBS and the reaction time, and the possible formation mechanism was also proposed. Upon ultraviolet (UV) excitation, the emission of Y 2(WO 4) 3:x mol% Eu 3+ microcrystals can be tuned from white to red, and the doping concentration of Eu 3+ has been optimized. Furthermore, the up-conversion (UC) luminescence properties as well as the emission mechanisms of Y 2(WO 4) 3:Yb 3+/Ln 3+ (Ln = Er, Tm, Ho) microcrystals were systematically investigated, which show green (Er 3+, 4S 3/2, 2H 11/24I 15/2), blue (Tm 3+, 1G 43H 6) and yellow (Ho 3+, 5S 25I 8) luminescence under 980 nm NIR excitation. Moreover, the doping concentration of the Yb 3+ has been optimized under a fixed concentration of Er 3+ for the UC emission of Y 2(WO 4) 3:Yb 3+/Er 3+.

Original languageEnglish
Pages (from-to)5634-5642
Number of pages9
JournalDalton Transactions
Volume41
Issue number18
DOIs
Publication statusPublished - 14 May 2012
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

Fingerprint

Dive into the research topics of 'Controllable synthesis and tunable luminescence properties of Y 2(WO 4) 3:Ln 3+ (Ln = Eu, Yb/Er, Yb/Tm and Yb/Ho) 3D hierarchical architectures'. Together they form a unique fingerprint.

Cite this