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, D. Y. Jiang, Y. P. Xu, J. L. Shi, "Synthesis of Ultrafine Lu2Hf2O7/Tb Phosphor by Solution Combustion Process", Key Engineering Materials, Vols. 336-338, pp. 640-642, 2007