Luminescence from Cr3+ ions in mixed-cation β-alumina crystals

Takeshi Hattori; Hiroo Yugami; Mareo Ishigame

doi:10.1016/0167-2738(94)90356-5

Luminescence from Cr³⁺ ions in mixed-cation β-alumina crystals

Takeshi Hattori, Hiroo Yugami, Mareo Ishigame

ENG - Mechanical Systems Engineering

Tohoku University

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The decay of the luminescence from Cr³⁺ ions in mixed-cation (Na_1-xAg_x and Na_1-xLi_x) β-alumina crystals was measured to study the disorder characteristics of the conduction plane. The decay curves of the luminescence bands obtained for all samples cannot be represented by using a combination of the exponential functions, but require that of the extended-exponential function. This result will be related to a disordered character of the conduction plane. Moreover, from the analyses of the decay feature and the electron-phonon interaction, it is suggested that the two kinds of conduction ions in the plane for samples near x=0.4 of Na_1-xAg_x β-alumina, in which the conductivity is remarkably lower, make a special structure.

Original language	English
Pages (from-to)	471-475
Number of pages	5
Journal	Solid State Ionics
Volume	70-71
Issue number	PART 1
DOIs	https://doi.org/10.1016/0167-2738(94)90356-5
Publication status	Published - 1994

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title = "Luminescence from Cr3+ ions in mixed-cation β-alumina crystals",

abstract = "The decay of the luminescence from Cr3+ ions in mixed-cation (Na1-xAgx and Na1-xLix) β-alumina crystals was measured to study the disorder characteristics of the conduction plane. The decay curves of the luminescence bands obtained for all samples cannot be represented by using a combination of the exponential functions, but require that of the extended-exponential function. This result will be related to a disordered character of the conduction plane. Moreover, from the analyses of the decay feature and the electron-phonon interaction, it is suggested that the two kinds of conduction ions in the plane for samples near x=0.4 of Na1-xAgx β-alumina, in which the conductivity is remarkably lower, make a special structure.",

author = "Takeshi Hattori and Hiroo Yugami and Mareo Ishigame",

note = "Funding Information: Nagoya Industrial Science Research Institute for providing the Na p-alumina single crystal used in this work. This work is partly supported by a Grant-in-Aid for Scientific Research (#04452032) from the Ministry of Education, Science and Culture, and the Foundation for Promotion of Material Science and Technology of Japan.",

year = "1994",

doi = "10.1016/0167-2738(94)90356-5",

language = "English",

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pages = "471--475",

journal = "Solid State Ionics",

issn = "0167-2738",

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T1 - Luminescence from Cr3+ ions in mixed-cation β-alumina crystals

AU - Hattori, Takeshi

AU - Yugami, Hiroo

AU - Ishigame, Mareo

N1 - Funding Information: Nagoya Industrial Science Research Institute for providing the Na p-alumina single crystal used in this work. This work is partly supported by a Grant-in-Aid for Scientific Research (#04452032) from the Ministry of Education, Science and Culture, and the Foundation for Promotion of Material Science and Technology of Japan.

PY - 1994

Y1 - 1994

N2 - The decay of the luminescence from Cr3+ ions in mixed-cation (Na1-xAgx and Na1-xLix) β-alumina crystals was measured to study the disorder characteristics of the conduction plane. The decay curves of the luminescence bands obtained for all samples cannot be represented by using a combination of the exponential functions, but require that of the extended-exponential function. This result will be related to a disordered character of the conduction plane. Moreover, from the analyses of the decay feature and the electron-phonon interaction, it is suggested that the two kinds of conduction ions in the plane for samples near x=0.4 of Na1-xAgx β-alumina, in which the conductivity is remarkably lower, make a special structure.

AB - The decay of the luminescence from Cr3+ ions in mixed-cation (Na1-xAgx and Na1-xLix) β-alumina crystals was measured to study the disorder characteristics of the conduction plane. The decay curves of the luminescence bands obtained for all samples cannot be represented by using a combination of the exponential functions, but require that of the extended-exponential function. This result will be related to a disordered character of the conduction plane. Moreover, from the analyses of the decay feature and the electron-phonon interaction, it is suggested that the two kinds of conduction ions in the plane for samples near x=0.4 of Na1-xAgx β-alumina, in which the conductivity is remarkably lower, make a special structure.

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VL - 70-71

SP - 471

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JO - Solid State Ionics

JF - Solid State Ionics

IS - PART 1

ER -

Luminescence from Cr³⁺ ions in mixed-cation β-alumina crystals

Abstract

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