M9Gd2W4O24:Eu3+ (M2+ = Ca2+ and Sr2+) red phosphors for NUV and blue InGaN-based WLEDs

Authors：Zeng Q; He P; Zhang X; Liang H; Gong M; Su Q

Source：Chemistry Letters, 2009, 38(12): 1172-1173.

DOI：10.1246/cl.2009.1172

M9Gd2W4O24:Eu3+ (M2+ = Ca2+ and Sr2+) phosphors were prepared by solid-state reaction, and the phosphors show intense red emission under 395 and 465 nm excitations, which matched the emission wavelength of a near-UV (NUV) chip and a blue chip, respectively. Bright white LEDs were fabricated, and the performances of the LEDs demonstrate that the tetratungstate phosphors are suitable for application to NUV and blue InGaN-based WLEDs.