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Hydrothermal synthesis, phase evolution, and optical properties of Eu3+-doped KF–YF3 system materials

Published online by Cambridge University Press:  17 October 2012

Chunyan Cao ,
Hyun Kyoung Yang ,
Byung Kee Moon ,
Byung Chun Choi ,
Jung Hyun Jeong  and
Kwang Ho Kim
Chunyan Cao
Affiliation:
College of Mathematics and Physics, Jinggangshan University, Ji’an 343009, China
Hyun Kyoung Yang
Affiliation:
Department of Physics, Pukyong National University, Busan 608-737, Korea
Byung Kee Moon
Affiliation:
Department of Physics, Pukyong National University, Busan 608-737, Korea
Byung Chun Choi
Affiliation:
Department of Physics, Pukyong National University, Busan 608-737, Korea
Jung Hyun Jeong*
Affiliation:
Department of Physics, Pukyong National University, Busan 608-737, Korea
Kwang Ho Kim
Affiliation:
School of Materials Science and Engineering, Pusan National University, Busan 609-735, Korea
*
a)Address all correspondence to this author. e-mail: jhjeong@pknu.ac.kr
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Abstract

Through a polyethylene-glycol-assisted hydrothermal method, a series of potassium fluoride (KF)–Yttrium (III) fluoride (YF3) system materials have been synthesized. By controlling the reactant ratios of KF: rare earth ions (RE3+), the hydrothermal temperatures, and the pH values of the prepared solutions, the final products can evolve among the orthorhombic phase of YF3 and/or the tetragonal phase of potassium triyttrium decafluoride (KY3F10) and/or the cubic phase of potassium yttrium tetrafluoride (KYF4). The final products are characterized by the x-ray diffraction (XRD) patterns, the field-emission scanning electron microscopy (FE-SEM) images, the energy-dispersive spectroscopy (EDS) patterns, the photoluminescence (PL) spectra, and the luminescent dynamic decay curves. The XRD patterns of the samples suggest the phase evolution of the final products. The FE-SEM images and the EDS patterns prove that. Europium ion (Eu3+) acting as a probe, its PL spectra and the luminescent decay curves all put together prove the phase evolution of the final products. The research can be extended to study the other KF–REF3 system materials.

Keywords

hydrothermallanthanideoptical properties
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 23 , 14 December 2012 , pp. 2988 - 2995
Copyright
Copyright © Materials Research Society 2012

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