Oleic acid-modified LiYF4:Er,Yb nanocrystals for potential optical-amplification applications

Shusen Liu, Xingyuan Guo, Xuesong Zhai, Dan Zhao, Kezhi Zheng, Guanshi Qin, Weiping Qin

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


LiYF4:18%Yb,2%Er nanocrystals and NaYF4:18%Yb,2%Er nanoparticles (NCs) were synthesized by a solvothermal approach using oleic acid (OA) as the surfactant. With the excitation of a 980 nm diode laser, LiYF 4:18%Yb,2%Er NCs exhibit more strong emission than alpha-NaYF 4:18%Yb, 2%Er at around 1530 nm. The TEM images showed that the LiYF4:18%Yb, 2%Er NCs have a nearly spherical shape and the size is about 15 nm. The OA-capped LiYF4 NCs have excellent dispersibility in organic solvents. These results showed that LiYF4:18%Yb, 2%Er NCs are a promising material for polymer-based optical waveguide amplifiers.

Original languageEnglish
Pages (from-to)3718-3721
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Issue number5
StatePublished - May 2014
Externally publishedYes


  • EDWA
  • Waveguide amplifier


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