Luminescence properties of rare earth ions in polytantalate

Shun Ichi Kubota; Hiasanori Yamane; Masahiko Shimada; Hirotsugu Takizawa; Tadashi Endo

doi:10.1016/S0925-8388(98)00426-5

Luminescence properties of rare earth ions in polytantalate

Shun Ichi Kubota, Hiasanori Yamane, Masahiko Shimada, Hirotsugu Takizawa, Tadashi Endo

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

7 Citations (Scopus)

Abstract

The luminescence properties of R³⁺ (R³⁺=Eu³⁺, Tb³⁺, Tm³⁺) in La_1-xR_xTa₇O₁₉ solid solution were systematically examined. In this host lattice, the distance between nearest neighbors of the La³⁺ site which were substituted by the R³⁺ ions, were very long (about 0.62 nm) and the sites locate two-dimensionally. The critical concentration at which the concentration quenching occurred under UV excitation were x=1.0 in La_1-xEu_xTa₇O₁₉, x=0.9 in La_1-xTb_xTa₇O₁₉ and x=0.14 in La_1-xTm_xTa₇O₁₉. Furthermore the energy migration process of these samples were investigated.

Original language	English
Pages (from-to)	746-749
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	275-277
DOIs	https://doi.org/10.1016/S0925-8388(98)00426-5
Publication status	Published - 1998 Jul 24

Keywords

Energy migration
Luminescence
Rare earth
Tantalate

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0925-8388(98)00426-5

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title = "Luminescence properties of rare earth ions in polytantalate",

abstract = "The luminescence properties of R3+ (R3+=Eu3+, Tb3+, Tm3+) in La1-xRxTa7O19 solid solution were systematically examined. In this host lattice, the distance between nearest neighbors of the La3+ site which were substituted by the R3+ ions, were very long (about 0.62 nm) and the sites locate two-dimensionally. The critical concentration at which the concentration quenching occurred under UV excitation were x=1.0 in La1-xEuxTa7O19, x=0.9 in La1-xTbxTa7O19 and x=0.14 in La1-xTmxTa7O19. Furthermore the energy migration process of these samples were investigated.",

keywords = "Energy migration, Luminescence, Rare earth, Tantalate",

author = "Kubota, {Shun Ichi} and Hiasanori Yamane and Masahiko Shimada and Hirotsugu Takizawa and Tadashi Endo",

note = "Funding Information: The present authors wish to thank Mr. T. Hase, Dr. N. Kijima and Mr. N. Shimomura of the Mitsubishi Kasei Co. Ltd. for fruitful discussions. This work was supported in part by a Grant-in-aid for Scientific Research (B) of the Ministry of Education, Science and Culture, Japan and IKETANI Science and Technology Foundation (No. 052025), Japan. ",

year = "1998",

month = jul,

day = "24",

doi = "10.1016/S0925-8388(98)00426-5",

language = "English",

volume = "275-277",

pages = "746--749",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Luminescence properties of rare earth ions in polytantalate

AU - Kubota, Shun Ichi

AU - Yamane, Hiasanori

AU - Shimada, Masahiko

AU - Takizawa, Hirotsugu

AU - Endo, Tadashi

N1 - Funding Information: The present authors wish to thank Mr. T. Hase, Dr. N. Kijima and Mr. N. Shimomura of the Mitsubishi Kasei Co. Ltd. for fruitful discussions. This work was supported in part by a Grant-in-aid for Scientific Research (B) of the Ministry of Education, Science and Culture, Japan and IKETANI Science and Technology Foundation (No. 052025), Japan.

PY - 1998/7/24

Y1 - 1998/7/24

N2 - The luminescence properties of R3+ (R3+=Eu3+, Tb3+, Tm3+) in La1-xRxTa7O19 solid solution were systematically examined. In this host lattice, the distance between nearest neighbors of the La3+ site which were substituted by the R3+ ions, were very long (about 0.62 nm) and the sites locate two-dimensionally. The critical concentration at which the concentration quenching occurred under UV excitation were x=1.0 in La1-xEuxTa7O19, x=0.9 in La1-xTbxTa7O19 and x=0.14 in La1-xTmxTa7O19. Furthermore the energy migration process of these samples were investigated.

AB - The luminescence properties of R3+ (R3+=Eu3+, Tb3+, Tm3+) in La1-xRxTa7O19 solid solution were systematically examined. In this host lattice, the distance between nearest neighbors of the La3+ site which were substituted by the R3+ ions, were very long (about 0.62 nm) and the sites locate two-dimensionally. The critical concentration at which the concentration quenching occurred under UV excitation were x=1.0 in La1-xEuxTa7O19, x=0.9 in La1-xTbxTa7O19 and x=0.14 in La1-xTmxTa7O19. Furthermore the energy migration process of these samples were investigated.

KW - Energy migration

KW - Luminescence

KW - Rare earth

KW - Tantalate

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U2 - 10.1016/S0925-8388(98)00426-5

DO - 10.1016/S0925-8388(98)00426-5

M3 - Article

AN - SCOPUS:0032114919

VL - 275-277

SP - 746

EP - 749

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -

Luminescence properties of rare earth ions in polytantalate

Abstract

Keywords

ASJC Scopus subject areas

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