Photoluminescence characteristics of ZnO doped with Eu3+ powders
Photoluminescence characteristics of ZnO doped with Eu3+ powders
In this work, we have investigated the photoluminescence spectra of europium-doped zinc oxide crystallites prepared by a vibrating milled solid-state reaction method. X-ray diffraction, scanning electron microscopy, luminescence spectra and time-resolved spectra analysis were used to characterize the synthetic ZnO:Eu3+ powders. XRD results of the powders showed a typical wurtzite hexagonal crystal structure. A second phase occurred at 5 mol% Eu2O3-doped ZnO. The 5D0–7F1 (590 nm) and 5D0–7F2 (609 nm) emission characteristics of Eu3+ appeared after quenching with more than 1.5 mol% Eu2O3 doping. The Commission Internationale d’Eclairage (CIE) chromaticity coordinates of a ZnO:Eu3+ host excited at ?ex=467 nm revealed a red-shift phenomenon with increase in Eu3+ ion doping. The lifetime of the Eu3+ ion decreased as the doping concentration was increased from 1.5 to 10 mol%, and the time-resolved 5D0?7F2 transition presents a single-exponential decay behavior
1015-1018
Fang, Te-Hua
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Chang, Yee-Shin
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Ji, Liang-Wen
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Prior, Stephen D.
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Water, Walter
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Chen, Kuan-Jen
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Fang, Ching-Feng
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Fang, Chun-Nan
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Shen, Siu-Tsen
3d7a9237-0668-4ebe-87a5-2725b268fbd3
2009
Fang, Te-Hua
8ddd64a8-3c9b-4a81-ac30-84fc8c793a59
Chang, Yee-Shin
fbd24fed-5da0-419a-a28d-c9398e59a883
Ji, Liang-Wen
3f4d5ba2-a4a1-436a-a8e0-c7d4c167a5f7
Prior, Stephen D.
9c753e49-092a-4dc5-b4cd-6d5ff77e9ced
Water, Walter
aa7a3fcf-9441-47bf-9165-ff55daccd63c
Chen, Kuan-Jen
993dc8f5-1523-422a-b4db-a672e9a259bc
Fang, Ching-Feng
cd29603b-a77e-4d07-b50e-323ee43a5929
Fang, Chun-Nan
31786589-d662-4ea5-92ab-89f95244dd54
Shen, Siu-Tsen
3d7a9237-0668-4ebe-87a5-2725b268fbd3
Fang, Te-Hua, Chang, Yee-Shin, Ji, Liang-Wen, Prior, Stephen D., Water, Walter, Chen, Kuan-Jen, Fang, Ching-Feng, Fang, Chun-Nan and Shen, Siu-Tsen
(2009)
Photoluminescence characteristics of ZnO doped with Eu3+ powders.
Journal of Physics and Chemistry of Solids, 70 (6), .
(doi:10.1016/j.jpcs.2009.05.012).
Abstract
In this work, we have investigated the photoluminescence spectra of europium-doped zinc oxide crystallites prepared by a vibrating milled solid-state reaction method. X-ray diffraction, scanning electron microscopy, luminescence spectra and time-resolved spectra analysis were used to characterize the synthetic ZnO:Eu3+ powders. XRD results of the powders showed a typical wurtzite hexagonal crystal structure. A second phase occurred at 5 mol% Eu2O3-doped ZnO. The 5D0–7F1 (590 nm) and 5D0–7F2 (609 nm) emission characteristics of Eu3+ appeared after quenching with more than 1.5 mol% Eu2O3 doping. The Commission Internationale d’Eclairage (CIE) chromaticity coordinates of a ZnO:Eu3+ host excited at ?ex=467 nm revealed a red-shift phenomenon with increase in Eu3+ ion doping. The lifetime of the Eu3+ ion decreased as the doping concentration was increased from 1.5 to 10 mol%, and the time-resolved 5D0?7F2 transition presents a single-exponential decay behavior
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Published date: 2009
Additional Information:
Commercial materials like europium (Eu) ion have a good effect of light-emitting to change its luminous effect by control of the host lattice. It is an excellent element for light-emitting center. In this work, we have investigated the photoluminescence spectra of europium-doped zinc oxide crystallites prepared by a vibrating milled solid-state reaction method. Effects of Eu doping on the structural, topographical and luminescent properties are discussed. The Commission Internationale d'Eclairage (CIE) chromaticity coordinates of a ZnO:Eu3+ host excited at lambda(ex) = 467 nm revealed a red-shift phenomenon with increase in Eu3+ ion doping. The lifetime of the Eu3+ ion decreased as the doping concentration was increased from 1.5 to 10 mol%, and the time-resolved D-5(0)-> F-7(2) transition presents a single-exponential decay behavior.
Organisations:
Aeronautics, Astronautics & Comp. Eng
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Local EPrints ID: 343532
URI: http://eprints.soton.ac.uk/id/eprint/343532
ISSN: 0022-3697
PURE UUID: 9e1ea6be-5ab7-4cf2-aa9d-09f806108109
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Date deposited: 04 Oct 2012 09:12
Last modified: 15 Mar 2024 03:45
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Contributors
Author:
Te-Hua Fang
Author:
Yee-Shin Chang
Author:
Liang-Wen Ji
Author:
Walter Water
Author:
Kuan-Jen Chen
Author:
Ching-Feng Fang
Author:
Chun-Nan Fang
Author:
Siu-Tsen Shen
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