Pr3+ doped LaTiNbO6 as a single phosphor for white LEDs

Xiaoding Qi, Chieh Min Liu, Chung Chiang Kuo

Research output: Contribution to journalLetter

25 Citations (Scopus)

Abstract

A structurally disordered host crystal, LaTiNbO6, has been doped with the Pr3+ ions emitting at two wavelength regions that could be mixed to give out white light. In agreement with the structural design, the samples showed inhomogeneously broadened transition lineshape arising from the disorder, which is not only efficient for the absorption of blue LED sources, but also insensitive to temperature variations. Aeschynite-structured LaTiNbO6 allowed doping of up to 100% Pr3+ without phase segregation. The samples gave out two clusters of dominant emissions peaked at 490 nm (3P0 3H4) and 609 nm (3P0 3H6), respectively, whose relative intensities could be tuned by the doping level to give a desired chromaticity.

Original languageEnglish
Pages (from-to)L61-L63
JournalJournal of Alloys and Compounds
Volume492
Issue number1-2
DOIs
Publication statusPublished - 2010 Mar 4

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Phosphors
Light emitting diodes
Doping (additives)
Structural design
Ions
Wavelength
Crystals
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Qi, Xiaoding ; Liu, Chieh Min ; Kuo, Chung Chiang. / Pr3+ doped LaTiNbO6 as a single phosphor for white LEDs. In: Journal of Alloys and Compounds. 2010 ; Vol. 492, No. 1-2. pp. L61-L63.
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Pr3+ doped LaTiNbO6 as a single phosphor for white LEDs. / Qi, Xiaoding; Liu, Chieh Min; Kuo, Chung Chiang.

In: Journal of Alloys and Compounds, Vol. 492, No. 1-2, 04.03.2010, p. L61-L63.

Research output: Contribution to journalLetter

TY - JOUR

T1 - Pr3+ doped LaTiNbO6 as a single phosphor for white LEDs

AU - Qi, Xiaoding

AU - Liu, Chieh Min

AU - Kuo, Chung Chiang

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N2 - A structurally disordered host crystal, LaTiNbO6, has been doped with the Pr3+ ions emitting at two wavelength regions that could be mixed to give out white light. In agreement with the structural design, the samples showed inhomogeneously broadened transition lineshape arising from the disorder, which is not only efficient for the absorption of blue LED sources, but also insensitive to temperature variations. Aeschynite-structured LaTiNbO6 allowed doping of up to 100% Pr3+ without phase segregation. The samples gave out two clusters of dominant emissions peaked at 490 nm (3P0 → 3H4) and 609 nm (3P0 → 3H6), respectively, whose relative intensities could be tuned by the doping level to give a desired chromaticity.

AB - A structurally disordered host crystal, LaTiNbO6, has been doped with the Pr3+ ions emitting at two wavelength regions that could be mixed to give out white light. In agreement with the structural design, the samples showed inhomogeneously broadened transition lineshape arising from the disorder, which is not only efficient for the absorption of blue LED sources, but also insensitive to temperature variations. Aeschynite-structured LaTiNbO6 allowed doping of up to 100% Pr3+ without phase segregation. The samples gave out two clusters of dominant emissions peaked at 490 nm (3P0 → 3H4) and 609 nm (3P0 → 3H6), respectively, whose relative intensities could be tuned by the doping level to give a desired chromaticity.

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