近紫外白光LED用Ba3Y1-x-yB3O9∶xEu3+,yBi3+高效红色荧光粉的制备与发光性能

doi:10.11896/cldb.19050130

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Abstract The Eu³⁺/Bi³⁺ ion co-doped Ba₃YB₃O₉ red phosphor was prepared by the traditional high temperature solid phase method at low temperature. The crystal structure and luminescence properties of the samples Ba₃Y_1-x-yB₃O₉∶xEu³⁺,yBi³⁺ were characterized by XRD and the fluorescence spectrometer. XRD results illustrated that Ba₃Y_1-x-yB₃O₉∶xEu³⁺,yBi³⁺ were pure phase crystals. The excitation and emission spectra showed that the sample could be excited by the near-ultraviolet 350—420 nm band. The strongest excitation peak was located at 393 nm. The emission spectrum showed the characteristic peak of Eu³⁺. The peak position of the band was at 593 nm and 613 nm, corresponding to⁵D₀-⁷F₁, ⁵D₀-⁷F₂ feature transition. The doping concentration corresponding to the strongest emission was 0.12 mol. The CIE coordinate of the concentration of Ba₃Y_0.87B₃O₉∶0.12Eu³⁺, 0.01Bi³⁺is (0.643, 0.356) which was closest to red, and excellent color rendering was obtained. The sample Ba₃Y_1-x-yB₃O₉∶xEu³⁺,yBi³⁺ phosphor was red phosphor for near-ultraviolet excitation trichromatic white LED with potential application.

Key words： red phosphor Eu³⁺ doping high temperature solid state method W-LEDs

Published: 14 July 2020

CLC number:

O482.31

Fund:This work was financially supported by the Natural Science Foundation of Inner Mongolia Natural Science (2018MS02002).

About author:: Huixia Wen, master student, School of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology. Mainly research on the preparation and performance of optical materials.
Wenyu Zhao, associate professor of the School of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology. She has served as a postdoctoral researcher at the Reliability Science and Technology Research Center of Chang Gung University, Taiwan,China (02/2016—02/2017). She has published more than 20 articles in important journals at home and abroad for the preparation and performance of optical materials and its aging mechanism, and applied for 2 invention patents.

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	WEN Huixia
	FAN Bin
	LI Hongxi
	XU Chenggong
	WANG Yuying
	ZHAO Wenyu

Cite this article:

WEN Huixia,FAN Bin,LI Hongxi, et al. Preparation and Luminescence Properties of Ba₃Y_1-x-yB₃O₉∶xEu³⁺,yBi³⁺ High-efficiency Red Phosphors for Near-UV White LEDs[J]. Materials Reports, 2020, 34(14): 14023-14026.

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http://www.mater-rep.com/EN/10.11896/cldb.19050130 OR http://www.mater-rep.com/EN/Y2020/V34/I14/14023

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