Single-Crystalline ZnGa2O4 Spinel Phosphor via a Single-Source Inorganic Precursor Route.

Single-Crystalline ZnGa2O4 Spinel Phosphor via a Single-Source Inorganic Precursor Route. Research Abstract Details 

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Single-Crystalline ZnGa2O4 Spinel Phosphor via a Single-Source Inorganic Precursor Route. Abstract Text:

Lu Zou,Xu Xiang,Min Wei,Feng Li,David G Evans,

The synthesis of single-crystalline ZnGa 2O 4 spinel phosphor with intense ultraviolet-emitting properties through a novel single-source inorganic precursor route is reported. This synthetic approach involves the calcination of a Zn-Ga layered double hydroxide precursor followed by selective leaching of the self-generated zinc oxide. Material characterization has been presented by chemical analysis, X-ray diffraction analysis, thermogravimetric-differential thermal analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, electron paramagnetic resonance, nuclear magnetic resonance, extended X-ray absorption fine structure analysis, UV-vis, and photoluminescence measurements. The results indicate that a single-crystalline ZnGa 2O 4 spinel with an average particle size of around 150 nm has been obtained at a lower calcination temperature and shorter calcination time compared with that with the high-temperature solid-state reaction method, based on the fact that the large amount of highly dispersed ZnO particles generated during the high-temperature calcination of the single-source inorganic precursor has a remarkable segregation and inhibition effect on the growth of ZnGa 2O 4 spinel. Furthermore, it has been confirmed that that Ga (3+) ions locate not only on the octahedral sites but also on the tetrahedral sites in the matrix of the ZnGa 2O 4 spinel structure, and the Ga-O coordination environment has a great influence on the photoluminence of ZnGa 2O 4 phosphors.

Single-Crystalline ZnGa2O4 Spinel Phosphor via a Single-Source Inorganic Precursor Route. Publishing Authors By Initials

L Zou,X Xiang,M Wei,F Li,DG Evans,

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Single-Crystalline ZnGa2O4 Spinel Phosphor via a Single-Source Inorganic Precursor Route. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Inorganic chemistry

VOLUME: 47

Page Numbers: 1361-9

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ISSN: 0020-1669

DAY: 15

MONTH: 01

YEAR: 2008

Single-Crystalline ZnGa2O4 Spinel Phosphor via a Single-Source Inorganic Precursor Route. Information

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LANGUAGE: eng

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AFFILIATION: lifeng_70@163.com.

Country: United States

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MEDLINETA: Inorg Chem

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