Luminescence and decay kinetics of Pb2+ center in LiCaAlF6 single crystal host

Jan Pejchal; Eva Mihokova; Martin Nikl; Andrey Novoselov; Akira Yoshikawa

doi:10.1016/j.optmat.2009.04.005

Luminescence and decay kinetics of Pb²⁺ center in LiCaAlF₆ single crystal host

Jan Pejchal, Eva Mihokova, Martin Nikl, Andrey Novoselov, Akira Yoshikawa

金属材料研究所・材料設計研究部

研究成果: Article

17 被引用数 (Scopus)

抄録

The Pb-doped LiCaAlF₆ single crystals were grown using the micro-pulling-down method. The temperature dependences of photoluminescence characteristics were studied to reveal the kinetic processes in the excited state of Pb²⁺ luminescence center. A simple three-level phenomenological model applied to the decay time temperature dependences shows that energy separation between the metastable ³P₀ and the radiative ³P₁ states of Pb²⁺ center is relatively high, about 180 meV (∼1470 cm^-1). Induced absorption spectrum after UV illumination at 500 K points to slight ionization of the Pb²⁺ excited state and creation of the color F-center with an absorption peak located around 260 nm.

本文言語	English
ページ（範囲）	1673-1677
ページ数	5
ジャーナル	Optical Materials
巻	31
号	11
DOI	https://doi.org/10.1016/j.optmat.2009.04.005
出版ステータス	Published - 2009 9

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

文献へのアクセス

10.1016/j.optmat.2009.04.005

フィンガープリント「Luminescence and decay kinetics of Pb<sup>2+</sup> center in LiCaAlF<sub>6</sub> single crystal host」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル

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abstract = "The Pb-doped LiCaAlF6 single crystals were grown using the micro-pulling-down method. The temperature dependences of photoluminescence characteristics were studied to reveal the kinetic processes in the excited state of Pb2+ luminescence center. A simple three-level phenomenological model applied to the decay time temperature dependences shows that energy separation between the metastable 3P0 and the radiative 3P1 states of Pb2+ center is relatively high, about 180 meV (∼1470 cm-1). Induced absorption spectrum after UV illumination at 500 K points to slight ionization of the Pb2+ excited state and creation of the color F-center with an absorption peak located around 260 nm.",

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author = "Jan Pejchal and Eva Mihokova and Martin Nikl and Andrey Novoselov and Akira Yoshikawa",

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T1 - Luminescence and decay kinetics of Pb2+ center in LiCaAlF6 single crystal host

AU - Pejchal, Jan

AU - Mihokova, Eva

AU - Nikl, Martin

AU - Novoselov, Andrey

AU - Yoshikawa, Akira

PY - 2009/9

Y1 - 2009/9

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AB - The Pb-doped LiCaAlF6 single crystals were grown using the micro-pulling-down method. The temperature dependences of photoluminescence characteristics were studied to reveal the kinetic processes in the excited state of Pb2+ luminescence center. A simple three-level phenomenological model applied to the decay time temperature dependences shows that energy separation between the metastable 3P0 and the radiative 3P1 states of Pb2+ center is relatively high, about 180 meV (∼1470 cm-1). Induced absorption spectrum after UV illumination at 500 K points to slight ionization of the Pb2+ excited state and creation of the color F-center with an absorption peak located around 260 nm.

KW - Doping

KW - Micro-pulling-down

KW - Neutron detectors

KW - Scintillator materials

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