Abstract:Thin films of lanthanide orthoniobate LnNbO4 (LnNO) and orthotantalate LnTaO4 (LnTO), (Ln = Nd, Sm, Eu) were fabricated using the sol–gel method with subsequent spin‐coating on the PbZrO3/Al2O3 substrate and annealing at 1000°C. X‐ray diffraction patterns showed monoclinic M‐LnNbO4 or M´‐LnTaO4, which coexists with the orthorhombic or tetragonal phase. X‐ray photoelectron spectroscopy demonstrated the presence of Nd3+, Sm3+/Sm2+ and Eu3+/Eu2+ ions. The luminescence properties of polymorphic films were investig… Show more
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