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Influence of the Host Phase on the Vibrational Spectra of Europium‐Doped Zirconia Prepared by Hydrothermal Processing
Author(s) -
Hemmer Eva,
Soga Kohei,
Konishi Tomoya,
Watanabe Tomoaki,
Taniguchi Takaaki,
Mathur Sanjay
Publication year - 2010
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2010.03981.x
Subject(s) - nanocrystalline material , hydrothermal circulation , europium , infrared spectroscopy , cubic zirconia , materials science , analytical chemistry (journal) , photoluminescence , fourier transform infrared spectroscopy , doping , infrared , mineralogy , luminescence , chemistry , nanotechnology , optics , ceramic , chemical engineering , organic chemistry , physics , optoelectronics , engineering , composite material
Nanocrystalline zirconia (ZrO 2 ) powders doped with 0.5 up to 5 mol% europium (Eu 3+ ) were prepared by hydrothermal process using ZrCl 4 and EuCl 3 ·6H 2 O as starting materials. Optical emission and vibrational properties of as‐prepared and calcined samples were investigated by phonon sideband (PSB), Fourier transform infrared (FT‐IR) and photoluminescence spectroscopy as well as lifetime measurements. We found that the doping degree had a strong effect on the crystalline phase, m ‐ and t ‐ZrO 2 , of the host material, which also influenced on its shape and intensity of the PSB spectra. Residual water in the as‐prepared samples indicated by FT‐IR spectra induced water relating vibrations in the PSB spectra. The obtained PSB were compared with the peaks in the recorded FT‐IR spectra and related to the vibrational modes of m ‐ and t ‐ZrO 2 .