Synthesis and luminescence of Ca4YO(BO3) 3:Eu3+ for fluorescent lamp application

Te Wen Kuo, Teng-Ming Chen*

*Corresponding author for this work

Research output: Contribution to journalArticle

14 Scopus citations


The red-emitting Ca4YO(BO3)3:Eu 3+ phosphor has been prepared at 1200 °C by the simple solid-state reaction. This preparation temperature is much lower than Y 2O3:Eu3+ (1400-1500 °C) for conventional solid-state reaction method. In particular, the complete process to produce high-quality phosphor particles was carried out through the single-step heat treatment of the mixture of corresponding oxide-type metal sources. For this material, the XRD, PL, PL excitation (PLE) and SEM features have also been investigated. The X-ray diffraction data indicate that pure phase of Ca 4YO(BO3)3:Eu3+ can be successfully obtained. Among the different emission transitions 5D07FJ=0, 1, 2, 3, 4 of this phosphor, one particular transition (5D07F2) at 610 nm has been found. Besides carrying out these essential measurements, we have also made an attempt to observe a strong red emission performance displayed by this phosphor for use as coating material on compact fluorescent lamps (CFLs). The results clearly indicate that the life time based on Ca 4YO(BO3)3:Eu3+ was found to be much longer than that using Y2O3:Eu3+. The good performances of the CFLs demonstrate that this phosphor may be suitable for application on short ultraviolet fluorescent lamp.

Original languageEnglish
Pages (from-to)882-885
Number of pages4
JournalOptical Materials
Issue number9
StatePublished - 1 Jan 2010


  • Fluorescent lamps
  • Phosphors
  • Photoluminescence
  • Red-light

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