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Abstrakty
A series of red-emitting phosphors InNbO4:Eu3+,Bi3+ was prepared by a high temperature solid-state reaction. The structure, size distribution and luminescence properties of the phosphors were respectively characterized by X-ray diffraction (XRD), laser particle size and molecular fluorescence spectrometer. The XRD results indicate that the phase-pure samples have been obtained and the crystal structure of the host has not changed under the Eu3+ and Bi3+ co-doping. The test of size distribution shows that the phosphor has a normal size distribution. The excitation spectra illustrate that the dominant sharp peaks are located at 394 nm (7F0→5L6) and 466 nm (7F0→5D2). Meanwhile, the emission spectra reveal that the phosphors excited by the wavelength of 394 nm or 466 nm have an intense red-emission line at 612 nm owing to the 5D0→(7F2 transition of Eu3+. Bi3+ doping has not changed the peak positions except the photoluminescence intensity. The emission intensity is related to Bi3+ concentration, and it is up to the maximum when the Bi3+-doping concentration is 4 mol%. Due to good photoluminescence properties of the phosphor, the InNbO4:0.04Eu3+,0.04Bi3+ may be used as a red component for white light-emitting diodes.
Wydawca
Czasopismo
Rocznik
Tom
Strony
435--439
Opis fizyczny
Bibliogr. 35 poz., rys.
Twórcy
autor
- Department of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou, Henan 451191, China
autor
- Department of Mechanics, Henan Mechanical and Electrical Vocational College, Zhengzhou, Henan, 451191, China
autor
- Department of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou, Henan 451191, China
autor
- Department of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou, Henan 451191, China
autor
- Department of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou, Henan 451191, China
autor
- Department of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou, Henan 451191, China
autor
- Department of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou, Henan 451191, China
Bibliografia
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- [5] LIU, Q.P., YIN H.J., LIU T., WANG C.Q., LIU R.Q., LU, W., YOU H.P., J. Lumin., 177 (2016), 349.
- [6] CHEN F.M., LIU X.H., Opt. Mater., 35 (2013), 2716.
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- [8] LIAO J.S., LIU L.B., YOU H.Y., HUANG H.P., YOU W.X., Optik, 123 (2012), 901.
- [9] JIAO H.Y., WANG Y.H., Physica B, 407 (2012), 2729.
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Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-578fcc5b-6be2-46b5-9503-68a191c9266e