Abstract
Gd 2O 3:Eu 3+ rods were successfully obtained by microwave heating the as-prepared substance, which templated by surfactant assemblies of gadolinium hydroxide and europium hydroxide, formed in a reaction between Gd(NO 3) 3–Eu(NO 3) 3 and urea. Transmission electron microscopy (TEM) characterizations indicated that the synthesized rods with an averaging diameter of 100–150 nm and agglomerates slightly. Powder X-ray diffraction (XRD) results indicated that the resultant rods were cubic Gd 2O 3. The luminescent of Gd 2O 3:Eu 3+ rods were investigated by photoluminescence (PL). Upon excitation with 257 and 277 nm, respectively, Gd 2O 3:Eu 3+ rods show a strong red emission line at around 611 nm. Furthermore, this novel method required a very short heating time, thus reducing the energy consumption.
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