Article Title

Shape-controlled synthesis of octahedral α-NaYF₄ and its rare earth doped submicrometer particles in acetic acid

Authors

Li Gao, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, China Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Xin Ge, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, China
Zhanli Chai, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, China Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Guohai Xu, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, China Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Xin Wang, Division of Chemical and Biomolecular Engineering, Nanyang Technological University, Singapore 637459
Cheng Wang, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, China

Keywords

α-NaYF4, octahedral, acetic acid, photoluminescence

Abstract

Submicrometer sized pure cubic phase, Eu3+ doped, and Yb3+/Er3+ co-doped α-NaYF4 particles with octahedral morphology have been prepared in acetic acid. The acetate anion plays a critical role in the formation of such symmetric octahedral structures through its selective adsorption on the (111) faces of the products. The size of the as-prepared octahedra can be tuned by varying the amount of sodium acetate added to the acetic acid. A possible formation mechanism for these octahedra has been proposed. The doped α-NaYF4 octahedral submicrometer particles show down-conversion and up-conversion photoluminescence typical of these materials.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-009-9056-1

Publisher

Tsinghua University Press

Recommended Citation

Li Gao,Xin Ge,Zhanli Chai,Guohai Xu,Xin Wang,Cheng Wang, Shape-controlled synthesis of octahedral α-NaYF4 and its rare earth doped submicrometer particles in acetic acid. NanoRes.2009, 2: 565-574