Issue 19, 2021

Full spectrum light-emitting diodes based on a new efficient zirconium silicate green phosphor for healthy lighting

Abstract

Full spectrum LEDs have been a research focus in the field of LED technology in recent years. In this study, a novel rubidium-containing zirconium silicate green phosphor, Rb2ZrSi2O7:Eu2+, with excellent thermal stability and high quantum efficiency was successfully synthesized via a high temperature solid phase method. The Rb2ZrSi2O7:Eu2+ phosphor can be effectively excited by near ultraviolet light, emitting intense green light peaking at 522 nm. The broadband green light emission with a FWHM of 91 nm was confirmed to originate from luminescent centers formed by Eu2+ occupying two different Rb+ sites. The color rendering properties of LED beads encapsulated by Rb2ZrSi2O7:Eu2+ are better than those of LED beads encapsulated by β-sialon:Eu2+, and these LEDs can basically meet the requirements for full-spectrum LEDs. The results indicate that Rb2ZrSi2O7:Eu2+ is a potential green phosphor for full spectrum LEDs.

Graphical abstract: Full spectrum light-emitting diodes based on a new efficient zirconium silicate green phosphor for healthy lighting

Supplementary files

Article information

Article type
Research Article
Submitted
07 Jul 2021
Accepted
15 Aug 2021
First published
18 Aug 2021

Mater. Chem. Front., 2021,5, 7251-7258

Full spectrum light-emitting diodes based on a new efficient zirconium silicate green phosphor for healthy lighting

J. Ding, Q. Xu, J. He, W. Zhang, J. Zhou and Q. Wu, Mater. Chem. Front., 2021, 5, 7251 DOI: 10.1039/D1QM00991E

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