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Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate

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Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate. / Zhao, Y.; Zhou, Y.; Jiang, Y.; Zhou, W.; Finch, Adrian Anthony; Townsend, P.D.; Wang, Y.

In: Journal of Materials Research, Vol. FirstView, 2015.

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Zhao, Y, Zhou, Y, Jiang, Y, Zhou, W, Finch, AA, Townsend, PD & Wang, Y 2015, 'Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate' Journal of Materials Research, vol. FirstView. https://doi.org/10.1557/jmr.2015.329

APA

Zhao, Y., Zhou, Y., Jiang, Y., Zhou, W., Finch, A. A., Townsend, P. D., & Wang, Y. (2015). Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate. Journal of Materials Research, FirstView. https://doi.org/10.1557/jmr.2015.329

Vancouver

Zhao Y, Zhou Y, Jiang Y, Zhou W, Finch AA, Townsend PD et al. Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate. Journal of Materials Research. 2015;FirstView. https://doi.org/10.1557/jmr.2015.329

Author

Zhao, Y. ; Zhou, Y. ; Jiang, Y. ; Zhou, W. ; Finch, Adrian Anthony ; Townsend, P.D. ; Wang, Y. / Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate. In: Journal of Materials Research. 2015 ; Vol. FirstView.

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@article{c5450d42700943208dd01be744cc6e39,
title = "Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate",
abstract = "Thermoluminescence (TL) and radioluminescence (RL) are reported over the temperature range 25–673 K from MgSiO:Tb and MgSiO:Eu. The dominant signals arise from the transitions within the Rare Earth (RE) dopants, with limited intensity from intrinsic or host defect sites. The Tb and Eu ions distort the lattice and alter the stability of the TL sites and the peak TL temperature scales with the Tb and Eu ion size. The larger Eu ions stabilize the trapped charges more than for the Tb, and so the Eu TL peak temperatures are ∼20{\%} higher. There are further size effects linked to the TL driven by the volume of the upper state orbitals of the rare earth transitions. For Eu the temperatures of the TL peaks are wavelength dependent since higher excited states couple to distant traps via more extensive orbits. The same pattern of peak temperature data is encoded in RL during heating. The data imply that there are sites in which the rare earth and charge stabilizing defects are closely associated within the host lattice, and the stability of the entire complex is linked to the lattice distortions from inclusions of impurities.",
keywords = "Radiation effects, Luminescence, Optical properties",
author = "Y. Zhao and Y. Zhou and Y. Jiang and W. Zhou and Finch, {Adrian Anthony} and P.D. Townsend and Y. Wang",
note = "We would like to thank the support of the Fundamental Research Funds for the Central Universities of China, the National Science Foundation of China (No. 11205134) and Beijing Higher Education Young Elite Teacher Project (YETP0640). The refurbishment of the RLTL system at St. Andrews was funded by NERC grant NE/H002715/1.",
year = "2015",
doi = "10.1557/jmr.2015.329",
language = "English",
volume = "FirstView",
journal = "Journal of Materials Research",
issn = "0884-2914",
publisher = "MATERIALS RESEARCH SOCIETY",

}

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TY - JOUR

T1 - Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate

AU - Zhao, Y.

AU - Zhou, Y.

AU - Jiang, Y.

AU - Zhou, W.

AU - Finch, Adrian Anthony

AU - Townsend, P.D.

AU - Wang, Y.

N1 - We would like to thank the support of the Fundamental Research Funds for the Central Universities of China, the National Science Foundation of China (No. 11205134) and Beijing Higher Education Young Elite Teacher Project (YETP0640). The refurbishment of the RLTL system at St. Andrews was funded by NERC grant NE/H002715/1.

PY - 2015

Y1 - 2015

N2 - Thermoluminescence (TL) and radioluminescence (RL) are reported over the temperature range 25–673 K from MgSiO:Tb and MgSiO:Eu. The dominant signals arise from the transitions within the Rare Earth (RE) dopants, with limited intensity from intrinsic or host defect sites. The Tb and Eu ions distort the lattice and alter the stability of the TL sites and the peak TL temperature scales with the Tb and Eu ion size. The larger Eu ions stabilize the trapped charges more than for the Tb, and so the Eu TL peak temperatures are ∼20% higher. There are further size effects linked to the TL driven by the volume of the upper state orbitals of the rare earth transitions. For Eu the temperatures of the TL peaks are wavelength dependent since higher excited states couple to distant traps via more extensive orbits. The same pattern of peak temperature data is encoded in RL during heating. The data imply that there are sites in which the rare earth and charge stabilizing defects are closely associated within the host lattice, and the stability of the entire complex is linked to the lattice distortions from inclusions of impurities.

AB - Thermoluminescence (TL) and radioluminescence (RL) are reported over the temperature range 25–673 K from MgSiO:Tb and MgSiO:Eu. The dominant signals arise from the transitions within the Rare Earth (RE) dopants, with limited intensity from intrinsic or host defect sites. The Tb and Eu ions distort the lattice and alter the stability of the TL sites and the peak TL temperature scales with the Tb and Eu ion size. The larger Eu ions stabilize the trapped charges more than for the Tb, and so the Eu TL peak temperatures are ∼20% higher. There are further size effects linked to the TL driven by the volume of the upper state orbitals of the rare earth transitions. For Eu the temperatures of the TL peaks are wavelength dependent since higher excited states couple to distant traps via more extensive orbits. The same pattern of peak temperature data is encoded in RL during heating. The data imply that there are sites in which the rare earth and charge stabilizing defects are closely associated within the host lattice, and the stability of the entire complex is linked to the lattice distortions from inclusions of impurities.

KW - Radiation effects

KW - Luminescence

KW - Optical properties

U2 - 10.1557/jmr.2015.329

DO - 10.1557/jmr.2015.329

M3 - Article

VL - FirstView

JO - Journal of Materials Research

T2 - Journal of Materials Research

JF - Journal of Materials Research

SN - 0884-2914

ER -

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