Hydrothermal synthesis and multicolor upconversion fluorescence of novel LiLuF4:Yb3+,Tm3+ microcrystals

Xiaohong Chuai, Xiang Zhang, Xueqing Bi, Chunfeng He, Weiping Qin

Research output: Contribution to journalArticlepeer-review


LiLuF4:Yb3+,Tm3+ upconversion luminescence materials were synthesized by a hydrothermal method, in which NaF and NaBF4 were used as fluorine sources (labeled as sample A and B, respectively). Their morphologies, XRD patterns and UC emission properties were compared. The synthesized crystallites consist of regular octahedrons of several micrometers and aggregates. The XRD patterns indicate that they belong to tetragonal crystal system with I41/a space group. These microcrystals emit strong UC violet, visible and near infrared light under the excitation of 980 nm laser diode. The multicolor UC emissions from sample B are much stronger than those from sample A. The strong emission intensity is ascribed to good crystal quality of sample B.

Original languageEnglish
Pages (from-to)3921-3924
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Issue number4
StatePublished - 1 Apr 2016
Externally publishedYes


  • Hydrothermal
  • Microcrystal
  • Upconversion luminescence


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