Synthesis of Ultrafine Lu2Hf2O7/Tb Phosphor by Solution Combustion Process
Ultrafine terbium-doped Lu2Hf2O7/Tb phosphor powders are prepared by a solution combustion process using glycine and urea as fuel. Phase evolution of the synthesized powder is determined by X-ray diffraction (XRD) techniques. Single-phase cubic Lu2Hf2O7/Tb crystalline powder is obtained by calcining the amorphous materials at 800oC and no intermediate phase is observed. Transmission electronic microscope (TEM) morphology shows that the resultant Lu2Hf2O7/Tb powders have uniform size and good homogeneity. The photoluminescence (PL) spectra of Tb3+ substituted for Lu3+ in Lu2Hf2O7 with different content has been measured on samples calcined at 1000oC.
Wei Pan and Jianghong Gong
Y. K. Liao et al., "Synthesis of Ultrafine Lu2Hf2O7/Tb Phosphor by Solution Combustion Process", Key Engineering Materials, Vols. 336-338, pp. 640-642, 2007