Red emitting Ba2GdVO6:Eu3+ phosphors for blue light converted warm white LEDs

Red-emitting phosphors have attracted considerable interest for their applications in warm white light-emitting diodes (LEDs). A series of novel red emitting Eu3+-doped Ba2GdVO6 phosphors were prepared by a solid-state reaction annealed at 1300 °C for 6 h. Under the excitation of blue light (465 nm), Ba2GdVO6:Eu3+ phosphors emit pure red light. The critical distance at which concentration occurs is determined to be 8.7 Å when the doping...