Blue emission of Eu2+-doped translucent alumina
Abstract
Inorganic scintillators are very important in medical and industrial measuring systems in the detection and measurement of ionizing radiation. In addition to Ce3+, a widely used dopant ion in oxide scintillators, divalent Europium (Eu2+) has shown promise as a high-luminescence, fast-response luminescence center useful in the detection of ionizing radiation. In this research, aluminum oxide (Al2O3) was studied as a host material for the divalent europium ion. Polycrystalline samples of Eu2+-doped translucent Al2O3 were fabricated, and room temperature luminescence behavior was observed. Al2O3 ceramics doped with 0.1 at% Eu2+ were fabricated with a relative density of 99.75% theoretical density and in-line transmittance of 22% at a wavelength of 800 nm. The ceramics were processed by a gel-casting method, followed by sintering under high vacuum. The gelling agent, a copolymer of isobutylene and maleic anhydride, is marketed under the commercial name ISOBAM, and has the advantage of simultaneously acting as both a gelling agent and as a dispersant. The microstructure and composition of the vacuum-sintered Eu2+:Al2O3 were characterized by Scanning Electric Microscopy (SEM), Transmission Electron Microscopy (TEM), and Energy-dispersive X-ray spectroscopy (EDS). The phase composition was determined by X-ray diffraction measurements (XRD) combined with Rietveld analysis. The photoluminescence behavior of themore »
- Authors:
-
- Alfred Univ., Alfred, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. of Tennessee, Knoxville, TN (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1246782
- Alternate Identifier(s):
- OSTI ID: 1246736
- Report Number(s):
- BNL-111710-2016-JA
Journal ID: ISSN 0022-2313
- Grant/Contract Number:
- SC00112704; AC02-98CH10886
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Luminescence
- Additional Journal Information:
- Journal Volume: 168; Journal Issue: C; Journal ID: ISSN 0022-2313
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Blue emission; Eu2+-doped transparent Al2O3; gelcasting; vacuum sintering; photoluminescence; radio-luminescence; Center for Functional Nanomaterials
Citation Formats
Yang, Yan, Zhang, Lihua, Kisslinger, Kim, Wei, Hua, Melcher, Charles L., and Wu, Yiquan. Blue emission of Eu2+-doped translucent alumina. United States: N. p., 2015.
Web. doi:10.1016/j.jlumin.2015.08.015.
Yang, Yan, Zhang, Lihua, Kisslinger, Kim, Wei, Hua, Melcher, Charles L., & Wu, Yiquan. Blue emission of Eu2+-doped translucent alumina. United States. https://doi.org/10.1016/j.jlumin.2015.08.015
Yang, Yan, Zhang, Lihua, Kisslinger, Kim, Wei, Hua, Melcher, Charles L., and Wu, Yiquan. Fri .
"Blue emission of Eu2+-doped translucent alumina". United States. https://doi.org/10.1016/j.jlumin.2015.08.015. https://www.osti.gov/servlets/purl/1246782.
@article{osti_1246782,
title = {Blue emission of Eu2+-doped translucent alumina},
author = {Yang, Yan and Zhang, Lihua and Kisslinger, Kim and Wei, Hua and Melcher, Charles L. and Wu, Yiquan},
abstractNote = {Inorganic scintillators are very important in medical and industrial measuring systems in the detection and measurement of ionizing radiation. In addition to Ce3+, a widely used dopant ion in oxide scintillators, divalent Europium (Eu2+) has shown promise as a high-luminescence, fast-response luminescence center useful in the detection of ionizing radiation. In this research, aluminum oxide (Al2O3) was studied as a host material for the divalent europium ion. Polycrystalline samples of Eu2+-doped translucent Al2O3 were fabricated, and room temperature luminescence behavior was observed. Al2O3 ceramics doped with 0.1 at% Eu2+ were fabricated with a relative density of 99.75% theoretical density and in-line transmittance of 22% at a wavelength of 800 nm. The ceramics were processed by a gel-casting method, followed by sintering under high vacuum. The gelling agent, a copolymer of isobutylene and maleic anhydride, is marketed under the commercial name ISOBAM, and has the advantage of simultaneously acting as both a gelling agent and as a dispersant. The microstructure and composition of the vacuum-sintered Eu2+:Al2O3 were characterized by Scanning Electric Microscopy (SEM), Transmission Electron Microscopy (TEM), and Energy-dispersive X-ray spectroscopy (EDS). The phase composition was determined by X-ray diffraction measurements (XRD) combined with Rietveld analysis. The photoluminescence behavior of the Eu2+:Al2O3 was characterized using UV light as the excitation source, which emitted blue emission at 440 nm. The radio-luminescence of Eu2+:Al2O3 was investigated by illumination with X-ray radiation, showing three emission bands at 376 nm, 575 nm and 698 nm. Furthermore, multiple level traps at different depths were detected in the Eu2+:Al2O3 by employing thermoluminescence measurements.},
doi = {10.1016/j.jlumin.2015.08.015},
journal = {Journal of Luminescence},
number = C,
volume = 168,
place = {United States},
year = {Fri Aug 21 00:00:00 EDT 2015},
month = {Fri Aug 21 00:00:00 EDT 2015}
}
Web of Science
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