Abstract
In this paper we report on facile solution combustion synthesis of erbium doped β-Ga 2O 3 with urea as fuel. The product was characterized using powder X-ray diffraction and transmission electron microscopy (TEM). X-ray diffraction and TEM showed that the material is nanostructured. Luminescence properties of β-Ga 2O 3:Er are studied with excitation in near infrared (Nd:YAG laser at 1064 nm) and visible (argon laser at 514.5 nm). A strong NIR emission of Er 3+ in the window of minimal optical loss in silica based optical fibers, due to the 4I 13/2→ 4I 15/2 transition at 1.55 μm has been observed. Codoping with Yb 3+ significantly increases the intensity of that important emission.
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