Ultraviolet upconversion fluorescence of Er 3+ in Yb 3+/Er 3+-codoped Gd 2O 3 nanotubes

Kezhi Zheng, Dan Zhao, Daisheng Zhang, Zhenyu Liu, Weiping Qin

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Under 980 nm excitation, room-temperature ultraviolet (UV) upconversion (UC) emissions of Er 3+ from the 4G 9/2, 2K 13/2, and 2P 3/2 states were observed in Gd 2O 3:Yb 3+/Er 3+ nanotubes which were synthesized via a simple wet-chemical route at low temperature and ambient pressure followed by a subsequent heat treatment at 800 °C. The experimental results exhibited that these UV emissions came from four-photon UC processes. In the Gd 2O 3:Yb 3+/Er 3+ nanocrystals, the energy transfers (ETs) from Yb 3+ to Er 3+ played important roles in populating the high-energy states of Er 3+ ions. This material provides a possible candidate for building UV compact solid-state lasers or fiber lasers.

Original languageEnglish
Pages (from-to)9765-9769
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number11
DOIs
StatePublished - 2011
Externally publishedYes

Keywords

  • Erbium Ions
  • Nanotubes
  • Ultraviolet
  • Upconversion

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