White-emitting phosphor Ca2BO3 Cl:Ce3+, Eu2+ for UV light-emitting diodes

Chongfeng Guo*, Lin Luan, Frank G. Shi, Xu Ding

*Corresponding author for this work

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

Ce3+ and Eu2+ coactivated Ca2BO 3 Cl phosphors exhibit two blue and yellow emission bands under the excitation of UV light. An asymmetric blue emission originates from Ce 3+, whereas the yellow emission originates from Eu2+. The luminescent mechanism is explained by the resonance-type energy transfer from Ce 3+ to Eu2+, and the energy-transfer efficiency is also calculated by decline and growth of their emission relative intensities. In light of the principle of energy transfer, the varied emitted color of phosphor from blue through white and finally to yellow can be achieved by properly tuning the ratio of Ce3+ Eu2+.

Original languageEnglish
Pages (from-to)J125-J128
Number of pages4
JournalJournal of the Electrochemical Society
Volume156
Issue number6
DOIs
Publication statusPublished - 2009

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