A study of the luminescence and energy transfer in Ba1.6Ca0.4P2O7 codoped with Eu2+ and Mn2+

✍ Scribed by Zhang, Xin-min ;Li, Wen-lan ;Seo, Hyo Jin

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 425 KB
• Volume: 208
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.201127231

✦ Synopsis

Abstract

Eu^2+^,Mn^2+^‐doped phosphors in the novel system Ba~1.6~Ca~0.4~P~2~O~7~ were prepared by solid‐state reactions. The photoluminescence (PL) properties of Eu^2+^,Mn^2+^ in Ba~1.6~Ca~0.4~P~2~O~7~ are reported and discussed. The emission spectrum of Ba~1.6~Ca~0.4~P~2~O~7~:0.04Eu^2+^ consists of two distinct broad bands peaking at about 400 and 470 nm, and the excitation spectra exhibit broad band in the range of 250–400 nm. A broad yellow emission band is observed around 565 nm in a Mn^2+^ single‐doped sample, and the intensity can be enhanced by codoping with Eu^2+^ ions. Evidence is presented for the energy transfer from Eu^2+^ to Mn^2+^ in this host lattice.