High-Quality Sodium Rare-Earth Fluoride Nanocrystals: Controlled Synthesis and Optical Properties
Beijing National Laboratory for Molecular Sciences · University of Hong Kong · +1 more institution
Abstract
We report a general synthesis of high-quality cubic (alpha-phase) and hexagonal (beta-phase) NaREF4 (RE: Pr to Lu, Y) nanocrystals (nanopolyhedra, nanorods, nanoplates, and nanospheres) and NaYF(4):Yb,Er/Tm nanocrystals (nanopolyhedra and nanoplates) via the co-thermolysis of Na(CF3COO) and RE(CF3COO)3 in oleic acid/oleylamine/1-octadecene. By tuning the ratio of Na/RE, solvent composition, reaction temperature and time, we can manipulate phase, shape, and size of the nanocrystals. On the basis of its alpha --> beta phase transition behavior, along the rare-earth series, NaREF4 can be divided into three groups (I: Pr and Nd; II: Sm to Tb; III: Dy to Lu, Y). The whole controlled-synthesis mechanism can be…
Citation impact
- FWCI
- 28.75
- Percentile
- 100%
- References
- 51
Authors
7- HMHaoxin MaiCorresponding
Beijing National Laboratory for Molecular Sciences, University of Hong Kong, Peking University
- YZYa‐Wen Zhang
Peking University, Beijing National Laboratory for Molecular Sciences, University of Hong Kong
- RSRui Si
Beijing National Laboratory for Molecular Sciences, Peking University, University of Hong Kong
- ZYZhengguang Yan
University of Hong Kong, Peking University, Beijing National Laboratory for Molecular Sciences
- LSLing‐Dong Sun
Peking University, University of Hong Kong, Beijing National Laboratory for Molecular Sciences
Topics & keywords
- Oleylamine
- Nanocrystal
- Chemistry
- Nanorod
- Photoluminescence
- Thermal decomposition
- Rare earth
- Nanotechnology