Synthesis and Characterization of a New Photoluminescent Material (8-hydroxy quinoline) bis (2-2'bipyridine) Lanthanum La(Bpy)2q

摘要

A new photoluminescence material,(8-hydroxy quinoline) bis (2-2'bipyridine) lanthanum has been synthesized and characterized by different techniques. The prepared material La(Bpy)_2q was characterized for structural, thermal and photoluminescence analysis. Structural analysis of this material was done by Fourier transformed infrared spectroscopy (FTIR) and mass spectroscopy. Thermal analysis of this material was done by thermal gravimetric analysis (TGA) shows the thermal stability up to 190°C.Absorption and emission spectra of the material was measured by UV-visible spectroscopy and photoluminescence spectroscopy. Solution of this material La(Bpy)_2q in ethanol showed absorption peak at 385nm ,which may be attributed due to (π - π*) transitions. The photoluminescence spectra of La(Bpy)_2q in ethanol solution showed intense peak at 490 nm