Spectroscopic Evidences of Eu–V Dipole Precipitation in KCl:Eu Crystals

H. Opyrchał; M. Manfredi

doi:10.1002/pssa.2211210207

Spectroscopic Evidences of Eu–V Dipole Precipitation in KCl:Eu Crystals

H. Opyrchał, M. Manfredi

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Abstract

KCl: Eu crystals thermally annealed at different temperatures or γ‐irradiated at 100°C are systematically studied by using optical (optical absorption, emission, and time decay luminescence) methods. It is found that the absorption and emission spectra of Eu ions are very sensitive to the precipitation form of the dopant ions. The results obtained are explained by assuming that high temperature (T_ann > 200°C) annealing and γ‐irradiation at 100°C lead to formation of precipitates of EuCl₂ type whereas low temperature (T_ann = 100°C) annealing produces precipitates tentatively associated to the Suzuki‐like phase.

Original language	English (US)
Pages (from-to)	407-414
Number of pages	8
Journal	physica status solidi (a)
Volume	121
Issue number	2
DOIs	https://doi.org/10.1002/pssa.2211210207
State	Published - Oct 16 1990
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Spectroscopic Evidences of Eu–V Dipole Precipitation in KCl:Eu Crystals",

abstract = "KCl: Eu crystals thermally annealed at different temperatures or γ‐irradiated at 100°C are systematically studied by using optical (optical absorption, emission, and time decay luminescence) methods. It is found that the absorption and emission spectra of Eu ions are very sensitive to the precipitation form of the dopant ions. The results obtained are explained by assuming that high temperature (Tann > 200°C) annealing and γ‐irradiation at 100°C lead to formation of precipitates of EuCl2 type whereas low temperature (Tann = 100°C) annealing produces precipitates tentatively associated to the Suzuki‐like phase.",

author = "H. Opyrcha{\l} and M. Manfredi",

year = "1990",

month = oct,

day = "16",

doi = "10.1002/pssa.2211210207",

language = "English (US)",

volume = "121",

pages = "407--414",

journal = "physica status solidi (a)",

issn = "0031-8965",

publisher = "Wiley-VCH Verlag",

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TY - JOUR

T1 - Spectroscopic Evidences of Eu–V Dipole Precipitation in KCl:Eu Crystals

AU - Opyrchał, H.

AU - Manfredi, M.

PY - 1990/10/16

Y1 - 1990/10/16

N2 - KCl: Eu crystals thermally annealed at different temperatures or γ‐irradiated at 100°C are systematically studied by using optical (optical absorption, emission, and time decay luminescence) methods. It is found that the absorption and emission spectra of Eu ions are very sensitive to the precipitation form of the dopant ions. The results obtained are explained by assuming that high temperature (Tann > 200°C) annealing and γ‐irradiation at 100°C lead to formation of precipitates of EuCl2 type whereas low temperature (Tann = 100°C) annealing produces precipitates tentatively associated to the Suzuki‐like phase.

AB - KCl: Eu crystals thermally annealed at different temperatures or γ‐irradiated at 100°C are systematically studied by using optical (optical absorption, emission, and time decay luminescence) methods. It is found that the absorption and emission spectra of Eu ions are very sensitive to the precipitation form of the dopant ions. The results obtained are explained by assuming that high temperature (Tann > 200°C) annealing and γ‐irradiation at 100°C lead to formation of precipitates of EuCl2 type whereas low temperature (Tann = 100°C) annealing produces precipitates tentatively associated to the Suzuki‐like phase.

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DO - 10.1002/pssa.2211210207

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JO - physica status solidi (a)

JF - physica status solidi (a)

IS - 2

ER -

Spectroscopic Evidences of Eu–V Dipole Precipitation in KCl:Eu Crystals

Abstract

All Science Journal Classification (ASJC) codes

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