“…This includes several lanthanide sesquioxides [5,[20][21][22], but, to our best knowledge, no information on Yb 2 O 3 has been reported until now. Therefore, here we present studies on the easy synthesis of Yb 2 O 3 submicron-and nano-materials, via the oxidation of electrospun ytterbium acetylacetonate-based precursors.…”