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WENKE RUAN1, MUBIAO XIE1,* , JIATING QIU1, YIWEI XIAN1, XIACHAN ZHANG1
A series of Dy3+ -Tm3+ co-activated Li2CaSiO4 phosphors were synthesized by a high temperature solid-state reaction and characterized using X-ray powder diffraction as well as luminescence spectroscopy. The excitation and emission spectra show that all the Tm3+ and Dy3+ co-doped Li2CaSiO4 samples can be effectively excited by UV light and then emit light in the region between blue and white. Furthermore, the color coordinate of as-obtained samples exited at 360 nm were able to be adjusted from warm-white to cold-white light area by varying the doping concentrations of Tm3+ and Dy3+. Hence, Li2CaSiO4:Dy3+ , Tm3+ phosphors have potential application as UV-convertible phosphor for near-UV excited white light-emitting diodes.
Phosphor, Luminescence, LEDs, Li2CaSiO4, Tm3+, Dy3+.
WENKE RUAN, MUBIAO XIE, JIATING QIU, YIWEI XIAN, XIACHAN ZHANG, Tunable luminescent properties of Dy3+, Tm3+ doped Li2CaSiO4 phosphors for near-UV light-emitting diodes, Optoelectronics and Advanced Materials - Rapid Communications, 17, 7-8, July-August 2023, pp.329-334 (2023).
Submitted at: Feb. 17, 2023
Accepted at: Aug. 7, 2023
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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