Journal ArticleDOI
Structure and luminescent properties of LaNbO4 synthesized by sol–gel process
Yu-Jen Hsiao,Te-Hua Fang,Yee-Shin Chang,Yen-Hwei Chang,Chien-Hung Liu,Liang-Wen Ji,Wen-Yuh Jywe +6 more
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TLDR
In this paper, the luminescence properties of LaNbO4 synthesized by the citric gel process were investigated and it was shown that the effect of the heat treatment conditions on the peak shape and peak positions of the photoluminescence (PL) emission are undetectable, and the PL spectra excited at 260nm have a blue emission band maximum at 408nm.About:
This article is published in Journal of Luminescence.The article was published on 2007-10-01. It has received 68 citations till now. The article focuses on the topics: Photoluminescence & Luminescence.read more
Citations
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Journal ArticleDOI
Designing multi-mode optical thermometers via the thermochromic LaNbO4:Bi3+/Ln3+ (Ln = Eu, Tb, Dy, Sm) phosphors
Junpeng Xue,Zhongkai Yu,Hyeon Mi Noh,Bo Ram Lee,Byung Chun Choi,Sung Heum Park,Jung Hyun Jeong,Peng Du,Mingjun Song +8 more
TL;DR: In this article, a solid-state reaction technology was used to synthesize multi-mode optical thermometers, which can emit both emissions of Bi3+ and Ln3+ ions.
Journal ArticleDOI
Charge transfer transitions in the transition metal oxides ABO4:Ln3+ and APO4:ln3+ (A=La, Gd, Y, Lu, Sc; B=V, Nb, Ta; Ln=lanthanide)
TL;DR: In this paper, optical and structural properties of lanthanide doped non-metal oxides of the form APO 4 :Ln 3+ with A a rare earth and of transition metal oxides with formula ABO 4 : Ln 3 + with B a transition metal were analyzed.
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Novel powellite-based red-emitting phosphors: CaLa1−xNbMoO8:xEu3+ for white light emitting diodes
TL;DR: The photoluminescence properties of a powellite-based red-emitting phosphor material: CaLa1−xNbMoO8:xEu3+ (001, 003, 005, 01) for the first time were reported in this article.
Journal ArticleDOI
Promising red phosphors LaNbO4:Eu3+, Bi3+ for LED solid-state lighting application
TL;DR: In this paper, the results showed that La 075 Nb 5 O 4 :Eu 3+ 025 and La 065 Nb O 2 S:005Eu3+, Y 2 O 2S:005 Eu 3+, Y 3+, La 0 75 Nb S:Eu 2.5, Y 3 + 025, Bi 3+ 010 phosphors emit brighter red light at 615 nm with line spectra upon the excitation of near UV light (395 nm) and exhibited the Commission International d'Eclairage (
Journal ArticleDOI
Sol–gel synthesis and the luminescent properties of CaNb2O6 phosphor powders
TL;DR: In this article, the synthesis and luminescence properties of CaNb2O6 oxides by the sol-gel process were investigated, and the products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscope (HRTEM), photoluminescence spectroscopy and absorption spectra.
References
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Journal ArticleDOI
On the Eu3+ Fluorescence of Mixed Metal Oxides. IV. The Photoluminescent Efficiency of Eu3+‐Activated Oxides
TL;DR: In this paper, four rules are proposed to explain the photoluminescent efficiency of Eu3+−activated oxides: uv absorbing groups in the host lattice should be nearest neighbors in the crystal structure to have sufficient wavefunction overlap; the emission spectrum of the absorbing group should overlap the absorption spectrum of a group; the configuration consisting of the center of the absorbed group, the intermediary O2− ion, and the Eu 3+ ion should be as collinear as possible.
Journal ArticleDOI
Monoclinic-to-Tetragonal Phase Transformation in a Ceramic Rare-Earth Orthoniobate, LaNbO4
Li Jian,C. M. Wayman +1 more
TL;DR: The monoclinic-to-tetragonal phase transformation in LaNbO4 has been investigated by X-ray diffraction and dilatometry in this article.
Journal ArticleDOI
On the intrinsic nature of the blue luminescence in CaWO4
TL;DR: In this article, LiF and CaWO 4 were compared with those of the crystalline system LiF/CaWO4 and evidence was found which clearly indicates that from the various emission bands of Ca WO 4 crystals only the blue one is of intrinsic nature.
Journal ArticleDOI
Studies of electronic excitations in MgMoO4, CaMoO4 and CdMoO4 crystals using VUV synchrotron radiation
TL;DR: RefReflection, emission and luminescence spectra of Czochralski grown molybdate crystals have been investigated over a 8-295 K temperature range using VUV synchrotron radiation as mentioned in this paper.
Journal ArticleDOI
The structures of 1:1 compounds of rare earth oxides with niobia and tantala
H. P. Rooksby,E. A. D. White +1 more
TL;DR: The crystal structures of various synthetic ABO/sub 4/ compounds, in which A is one of the rare earths La, Ce, Nd, Sm, Gd, Dy, Y, or Sc, and B is either Nb or Ta, were examined as mentioned in this paper.
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