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Title: Photoluminescence from terbium doped silica-titania prepared by a sol-gel method

Abstract

Terbium doped (0.5 at.%) TiO{sub 2}-SiO{sub 2} (30%/70%) was prepared by a sol-gel method. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were used to characterize the powder calcined at two different temperatures. At a low temperature of 550 deg. C an amorphous phase was obtained, but at a higher temperature of 1000 deg. C, the anatase TiO{sub 2} phase was crystallized in the amorphous SiO{sub 2} phase. Green photoluminescence from ultraviolet excitation was detected after heating to either temperature, but the amorphous sample heated to 550 deg. C exhibited a higher intensity. X-ray diffraction and photoluminescence excitation data are discussed to explain these observations.

Authors:
 [1];  [2];  [3];  [3]
  1. Central Metallurgical R and D Institute, CMRDI, P.O. Box 87, Helwan, Cairo (Egypt)
  2. Universite Abdelmalek Essaadi, Faculte des Sciences, BP 2121, Tetouan 93000 (Morocco). E-mail: abboudi14@hotmail.com
  3. Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611 (United States)
Publication Date:
OSTI Identifier:
20900953
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 42; Journal Issue: 1; Other Information: DOI: 10.1016/j.materresbull.2006.05.002; PII: S0025-5408(06)00191-7; Copyright (c) 2006 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:
36 MATERIALS SCIENCE; AMORPHOUS STATE; DOPED MATERIALS; EXCITATION; HEATING; PHOTOLUMINESCENCE; POWDERS; SILICA; SILICON OXIDES; SOL-GEL PROCESS; TERBIUM; TITANIUM OXIDES; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Ismail, Adel Ali, Abboudi, Mostafa, Holloway, Paul, and El-Shall, Hassan. Photoluminescence from terbium doped silica-titania prepared by a sol-gel method. United States: N. p., 2007. Web. doi:10.1016/j.materresbull.2006.05.002.
Ismail, Adel Ali, Abboudi, Mostafa, Holloway, Paul, & El-Shall, Hassan. Photoluminescence from terbium doped silica-titania prepared by a sol-gel method. United States. doi:10.1016/j.materresbull.2006.05.002.
Ismail, Adel Ali, Abboudi, Mostafa, Holloway, Paul, and El-Shall, Hassan. Thu . "Photoluminescence from terbium doped silica-titania prepared by a sol-gel method". United States. doi:10.1016/j.materresbull.2006.05.002.
@article{osti_20900953,
title = {Photoluminescence from terbium doped silica-titania prepared by a sol-gel method},
author = {Ismail, Adel Ali and Abboudi, Mostafa and Holloway, Paul and El-Shall, Hassan},
abstractNote = {Terbium doped (0.5 at.%) TiO{sub 2}-SiO{sub 2} (30%/70%) was prepared by a sol-gel method. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were used to characterize the powder calcined at two different temperatures. At a low temperature of 550 deg. C an amorphous phase was obtained, but at a higher temperature of 1000 deg. C, the anatase TiO{sub 2} phase was crystallized in the amorphous SiO{sub 2} phase. Green photoluminescence from ultraviolet excitation was detected after heating to either temperature, but the amorphous sample heated to 550 deg. C exhibited a higher intensity. X-ray diffraction and photoluminescence excitation data are discussed to explain these observations.},
doi = {10.1016/j.materresbull.2006.05.002},
journal = {Materials Research Bulletin},
number = 1,
volume = 42,
place = {United States},
year = {Thu Jan 18 00:00:00 EST 2007},
month = {Thu Jan 18 00:00:00 EST 2007}
}