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Title: Blue photoluminescence in Ti-doped alkaline-earth stannates

Abstract

Blue photoluminescence properties of Ti-doped alkaline-earth stannates, A {sub 2}(Sn{sub 1-} {sub x} Ti {sub x} )O{sub 4} (A=Ca, Sr, Ba) (x=0.005-0.15), were examined at room temperature. These stannates showed intense broad emission bands peaking at 445 nm for Ca{sub 2}SnO{sub 4}, at 410 nm for Sr{sub 2}SnO{sub 4}, and at 425 nm for Ba{sub 2}SnO{sub 4} under UV excitation. Emission intensities were relatively insensitive to Ti concentration and no sharp concentration quenching was observed. Mixing alkaline-earth ions in the crystal structures did not increase the emission intensities in the A {sub 2}(Sn{sub 1-} {sub x} Ti {sub x} )O{sub 4} system. The excitation spectra of these stannates exhibited broad bands just below the fundamental absorption edges, implying that luminescence centers do not consist of the component elements in the host materials. It was suggested that the isolated TiO{sub 6} complexes are possible luminescence centers in these materials, as previously proposed in other Ti-doped stannates such as Mg{sub 2}SnO{sub 4} and Y{sub 2}Sn{sub 2}O{sub 7}. - Graphical abstract: Blue photoluminescence properties of Ti-doped alkaline-earth stannates, A {sub 2}(Sn{sub 1-} {sub x} Ti {sub x} )O{sub 4} (A=Ca, Sr, Ba) (x=0.005-0.15), were examined at room temperature. These stannates showed intense broadmore » emission bands peaking at 445 nm for Ca{sub 2}SnO{sub 4}, at 410 nm for Sr{sub 2}SnO{sub 4}, and at 425 nm for Ba{sub 2}SnO{sub 4} under UV excitation.« less

Authors:
 [1];  [2]
  1. Department of Materials Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui, Tobata, Kitakyushu, Fukuoka 804-8550 (Japan)
  2. Department of Materials Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui, Tobata, Kitakyushu, Fukuoka 804-8550 (Japan), E-mail: kueda@che.kyutech.ac.jp
Publication Date:
OSTI Identifier:
21015790
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 180; Journal Issue: 4; Other Information: DOI: 10.1016/j.jssc.2007.02.009; PII: S0022-4596(07)00079-5; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CERAMICS; CRYSTAL STRUCTURE; DOPED MATERIALS; OXIDES; PEROVSKITE; PHOTOLUMINESCENCE; QUENCHING; SPECTRA; STANNATES; STRONTIUM COMPOUNDS; TEMPERATURE RANGE 0273-0400 K; TITANIUM COMPOUNDS

Citation Formats

Yamashita, Takahiro, and Ueda, Kazushige. Blue photoluminescence in Ti-doped alkaline-earth stannates. United States: N. p., 2007. Web. doi:10.1016/j.jssc.2007.02.009.
Yamashita, Takahiro, & Ueda, Kazushige. Blue photoluminescence in Ti-doped alkaline-earth stannates. United States. doi:10.1016/j.jssc.2007.02.009.
Yamashita, Takahiro, and Ueda, Kazushige. Sun . "Blue photoluminescence in Ti-doped alkaline-earth stannates". United States. doi:10.1016/j.jssc.2007.02.009.
@article{osti_21015790,
title = {Blue photoluminescence in Ti-doped alkaline-earth stannates},
author = {Yamashita, Takahiro and Ueda, Kazushige},
abstractNote = {Blue photoluminescence properties of Ti-doped alkaline-earth stannates, A {sub 2}(Sn{sub 1-} {sub x} Ti {sub x} )O{sub 4} (A=Ca, Sr, Ba) (x=0.005-0.15), were examined at room temperature. These stannates showed intense broad emission bands peaking at 445 nm for Ca{sub 2}SnO{sub 4}, at 410 nm for Sr{sub 2}SnO{sub 4}, and at 425 nm for Ba{sub 2}SnO{sub 4} under UV excitation. Emission intensities were relatively insensitive to Ti concentration and no sharp concentration quenching was observed. Mixing alkaline-earth ions in the crystal structures did not increase the emission intensities in the A {sub 2}(Sn{sub 1-} {sub x} Ti {sub x} )O{sub 4} system. The excitation spectra of these stannates exhibited broad bands just below the fundamental absorption edges, implying that luminescence centers do not consist of the component elements in the host materials. It was suggested that the isolated TiO{sub 6} complexes are possible luminescence centers in these materials, as previously proposed in other Ti-doped stannates such as Mg{sub 2}SnO{sub 4} and Y{sub 2}Sn{sub 2}O{sub 7}. - Graphical abstract: Blue photoluminescence properties of Ti-doped alkaline-earth stannates, A {sub 2}(Sn{sub 1-} {sub x} Ti {sub x} )O{sub 4} (A=Ca, Sr, Ba) (x=0.005-0.15), were examined at room temperature. These stannates showed intense broad emission bands peaking at 445 nm for Ca{sub 2}SnO{sub 4}, at 410 nm for Sr{sub 2}SnO{sub 4}, and at 425 nm for Ba{sub 2}SnO{sub 4} under UV excitation.},
doi = {10.1016/j.jssc.2007.02.009},
journal = {Journal of Solid State Chemistry},
number = 4,
volume = 180,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}