Facile solution synthesis of tris(8-hydroxyquinoline) gallium crystalline nanostructures and their optical properties

Crystalline Gaq3 (tris-(8-hydroxyquinoline)gallium) nanorods and nanoparticles have been obtained by a solvent-evaporation-induced self-assembly approach in the absence of an anti-solvent and surfactant assistant. The obtained assemblies have regular shape and good crystallinity. The rods length of Gaq3 can reach 50 ± 5 μm, and the length/diameter (L/D ratio) of Gaq3 rods and particles are about 60 and 2, respectively. The photo-luminescence and waveguide characteristics of the nanostructures were investigated, respectively. The results exhibit that the obtained Gaq3 products have excellent green light-emitting and waveguide performances.