Universität zu Köln

Hemmer, Eva ORCID: 0000-0002-9222-1219, Soga, Kohei, Konishi, Tomoya, Watanabe, Tomoaki, Taniguchi, Takaaki and Mathur, Sanjay (2010). Influence of the Host Phase on the Vibrational Spectra of Europium-Doped Zirconia Prepared by Hydrothermal Processing. J. Am. Ceram. Soc., 93 (11). S. 3873 - 3880. HOBOKEN: WILEY. ISSN 1551-2916

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Abstract

Nanocrystalline zirconia (ZrO2) powders doped with 0.5 up to 5 mol% europium (Eu3+) were prepared by hydrothermal process using ZrCl4 and EuCl3 center dot 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-ZrO2, 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-ZrO2.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Hemmer, Eva UNSPECIFIED orcid.org/0000-0002-9222-1219 UNSPECIFIED Soga, Kohei UNSPECIFIED UNSPECIFIED UNSPECIFIED Konishi, Tomoya UNSPECIFIED UNSPECIFIED UNSPECIFIED Watanabe, Tomoaki UNSPECIFIED UNSPECIFIED UNSPECIFIED Taniguchi, Takaaki UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-493691
DOI:	10.1111/j.1551-2916.2010.03981.x
Journal or Publication Title:	J. Am. Ceram. Soc.
Volume:	93
Number:	11
Page Range:	S. 3873 - 3880
Date:	2010
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1551-2916
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language UP-CONVERSION; ENERGY-TRANSFER; ZRO2; LUMINESCENCE; TRANSFORMATION; FLUORESCENCE; DYNAMICS; GLASSES; IONS; ER3+ Multiple languages Materials Science, Ceramics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/49369