Articles


Document Type
Journal article (JA)
Title
A novel white-light-emission phosphor Dy3+-doped CaLaB7O13under UV excitation
Author
Xiong, F.B.(1,2); Liu, S.X.(1); Lin, H.F.(1); Meng, X.G.(1,2); Lian, S.Y.(3); Zhu, W.Z.(1,2)
Address
(1) Department of Optoelectronics, Xiamen University of Technology, Xiamen; 361024, China; (2) Fujian Provincial Key Laboratory of Optoelectronic Technologies and Devices, Xiamen University of Technology, Xiamen; 361024, China; (3) Department of Materials Science and Engineering, DaYue University, Taiwan
RPAddress
Email
ResearchID
ORCID
Journal
Optics and Laser Technology
Publisher
Elsevier Ltd
ISSN
0030-3992
Published
2018-10, 106:29-33.
JCR
3
ImpactFactor
2.109
ISBN
Fund_Code
HYMC
HYDD
HYKSRQ
HYJSRQ
HYLWLB
HYJB
Keywords
Emission spectroscopy - Energy transfer - Light - Light emitting diodes - Luminescence - Optical materials - Optical properties - Solid state reactions - Synthesis (chemical) - X ray powder diffraction
Abstract
White-light-emitting phosphors Dy3+-doped CaLaB7O13were synthesized by solid-state reaction, and their luminescent properties were characterized for the applications in white-light-diodes (W-LEDs). The obtained samples were initially investigated by X-ray powder diffraction, photoluminescence excitation and emission spectra, the Commission International de L'Eclairage (CIE) chromaticity coordinates, and thermally stable properties. Dy3+-doped CaLaB7O13phosphors emitted a blue emission band centered at 480 nm and a yellow one centered at 575 nm with CIE chromaticity coordinates of (0.325, 0.339) under the excitation of near-UV (NUV) LED chips at 365 nm. The electric dipole-dipole interaction was demonstrated to be the energy transfer mechanism in Dy3+-doped CaLaB7O13phosphors, and the critical distance of energy transfer between the Dy3+ions was estimated to be about 0.920 nm. The temperature-dependent spectra imply Dy3+-doped CaLaB7O13show small thermal quenching. The present work indicated that Dy3+-doped CaLaB7O13was a promising white-light-emitting phosphor excited by NUV LED. ? 2018 Elsevier Ltd
WOS Categories
Accession Number
EI收录号
20181504992969
DOI
10.1016/j.optlastec.2018.03.023
ESI_Type
ENGINEERING
Collection
EI

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