Selective Synthesis and Luminescence Properties of Nanocrystalline GdF3:Eu3+ with Hexagonal and Orthorhombic Structures | Zendy

Xiaoting Zhang | Zendy; Tomokatsu Hayakawa | Zendy; Masayuki Nogami | Zendy; Yukari Ishikawa | Zendy

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Selective Synthesis and Luminescence Properties of Nanocrystalline GdF3:Eu³⁺ with Hexagonal and Orthorhombic Structures

Author(s) -

Xiaoting Zhang,

Tomokatsu Hayakawa,

Masayuki Nogami,

Yukari Ishikawa

Publication year - 2010

Publication title -

journal of nanomaterials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.463

H-Index - 66

eISSN - 1687-4129

pISSN - 1687-4110

DOI - 10.1155/2010/651326

Subject(s) - orthorhombic crystal system , materials science , luminescence , nanocrystalline material , hexagonal crystal system , nanocrystal , crystallography , fluoride , nanotechnology , crystal structure , inorganic chemistry , optoelectronics , chemistry

GdF3:Eu3+ nanophosphors with hexagonal or orthorhombic structure have been succeeded to be selectively synthesized at room temperature for the first time via a simple soft chemical route. The structure and morphology of GdF3:Eu3+ nanophosphors were controlled by using different fluoride precursors. Hexagonal GdF3:Eu3+ nanocrystals were formed when NaBF4 was used as a fluoride precursor, while orthorhombic GdF3:Eu3+ nanocrystals were obtained with NaF or NH4F fluoride precursor. It was also experimentally revealed that hexagonal GdF3:Eu3+ nanophosphors emitted essentially stronger Eu3+ luminescence than orthorhombic ones did. The formation mechanism of GdF3 nanocrystals and the possible reasons of the strong PL in hexagonal were discussed

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