Ba3YB3O9based phosphor ceramic plates with excellent thermal stability for wLED applications

Weiwei Wu, Yuanpeng Zhang, Yuepin Zhang, Jianxu Hu

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

A series of Eu3+and Tb3+singly doped Ba3YB3O9phosphors were synthesized by a solution combustion approach. The most luminescent phosphors were selected as the starting materials to fabricate phosphor ceramic plates (PCPs). More intense red and green emission is observed from the PCPs than the corresponding phosphors. The emission colour can be effectively tuned by varying the mass ratio of the red and green phosphors and the excitation wavelength. White light emission was obtained by incorporating the blue-emitting Eu2+doped BaMgAl10O17phosphor into the PCP component. The synthesized phosphors and PCPs show robust thermal stability, maintaining more than 80% of emission intensity at 423 K of that at 298 K after a long time operation. The results indicate that the prepared red and green PCPs are promising candidates for high-power wLED applications.

Original languageEnglish
Pages (from-to)5287-5300
Number of pages14
JournalDalton Transactions
Volume50
Issue number15
DOIs
StatePublished - Apr 21 2021

Funding

This work was supported by the Natural Science Foundation of Zhejiang Province, China (No. LY18F050006 and LQ21A040003), the Natural Science Foundation of Ningbo (Grant No. 2019A610057 and 2018A610040) and The General Research Project of the Department of Education of Zhejiang Province (Y201941319).

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