Abstract
GdAl3(BO3)4 nanorods doped with rare-earth ions have been obtained via a combustion synthesis. Thenanorods have been characterized by x-ray diffraction, micro-Raman spectra, variousmicroscopy techniques and fluorescence measurements. The results show that the nanorodsare of straight morphology and smooth surface with an average diameter of 60 nm. TheGdAl3(BO3)4:Dy3+ nanorods show intense emissions centred at 480, 575, and 665 nm upon excitation byboth ultraviolet-blue and infrared light, which are associated with the typicaltransitions of , and of Dy3+, respectively.The presence of Ce3+ in the nanorods resulted in an enhancement of theDy3+ emission intensityby a factor of ∼2. Furthermore, the values of yellow-to-blue integral intensity of the nanorods decrease rapidly with anincrease of Ce3+ concentration, which indicates that the emitted light approaches the CommissionInternationale de I’Eclairage (CIE) ideal white conditions.
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