4. Conclusions
In conclusion, the reddish-orange Ba2Ca1xMoO6:Eu3+ phosphors
were synthesized successfully by the sol–gel method. The
photoluminescence properties and energy transfer of the samples
have been investigated. An intense broad band in the range
of 250–450 nm, which covers the whole emission wavelength of
near-UV LEDs chips, is observed in the excitation spectrum of
Ba2Ca1xMoO6:Eu3+. The emission spectra demonstrate that the
optimal doping concentration of Eu3+ in Ba2CaMoO6 is about 0.06,
and its concentration quenching is mainly due to the interactions
of pairing Eu3+ ions through intervening oxygens. Ba2CaMoO6:Eu3+
phosphor exhibits an intense reddish orange emission under CT
band excitation. This phosphor can find potential application in
fabrication of the near-ultraviolet excited w-LEDs.