Synthesis, luminescence properties, and growth mechanisms of YF3:Yb3+/Er3+ nanoplates

G. Murali, Byeong Hoon Lee, R. K. Mishra, Jae Myeong Lee, Sang Hwan Nam, Yung Doug Suh, Dong Kwon Lim, Joong Hee Lee, Seung Hee Lee

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Anisotropically structured upconversion nanocrystals capable of exhibiting bright upconversion emission properties are a promising new class of high performance optical materials. In this study, we investigate a facile synthetic method for the new nanoplate structure of YF3:Yb3+/Er3+ with enhanced luminescence intensity. The shape of YF3:Yb3+/Er3+ nanocrystals can be controlled by changing the synthesis conditions of the NaOH concentration, reaction time, and surfactant. The concentration of NaOH determines the final structure of YF3:Yb3+/Er3+. By increasing the NaOH concentration from 0.25 mmol to 2.5 mmol, YF3:Yb3+/Er3+ nanoplates transform into NaYF4:Yb3+/Er3+ nanoparticles; in the absence of NaOH, the nanoplate structure of YF3:Yb3+/Er3+ changes to particles. The YF3:Yb3+/Er3+ nanoplates show luminescence efficiency much greater than that of the spherical YF3:Yb3+/Er3+ nanocrystals.

Original languageEnglish
Pages (from-to)10107-10113
Number of pages7
JournalJournal of Materials Chemistry C
Volume3
Issue number39
DOIs
Publication statusPublished - 2015 Sep 4

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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