Synthesis and luminescence properties of Er 3+ doped Y(OH) 3, NH 4y 3F 10, and YF 3 nanocrystals

Guofeng Wang, Weiping Qin, Daisheng Zhang, Guodong Wei, Lili Wang, Kezhi Zheng, Peifen Zhu, Ryongjin Kim, Fuheng Ding

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Y(OH) 3:Er 3+ nanowires were synthesized by a hydrothermal method. Y(OH) 3:Er 3+ can convert into NH 4Y 3F 10:Er 3+ after fluorization, and NH 4Y 3F 10:Er 3+ can convert into YF 3)Er 3+ after being annealed. The structures of obtained Y(OH) 3:Er 3+, NH 4Y 3F 10:Er 3+, and YF 3:Er 3+ samples were pure hexagonal, cubic, and orthorhombic phase, respectively. Under 378-nm excitation, the three samples showed similar features. The 2H 9/24I 15/2, 4F 3/2( 4F 5/2) → 4I 15/2, and 4S 3/24I 15/2 were observed, and the most intense peak was centered at 436 nm [ 4F 3/2( 4F 5/2) → 4I 15/2]. Under 980-nm excitation, only the upconversion emissions from NH 4Y 3F 10)Er 3+ and YF 3:Er 3+ were observed. These emissions come from the following transitions: 2H 11/24I 15/2, 4S 3/24I 15/2, and 4F 9/24I 15/2. The upconversion mechanism is discussed in detail.

Original languageEnglish
Pages (from-to)1728-1732
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume10
Issue number3
DOIs
StatePublished - Mar 2010
Externally publishedYes

Keywords

  • Cross relaxation
  • Energy transfer
  • Luminescence
  • Nanocrystals
  • Rare earth

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