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Tris (8-hydroxyquinoline) aluminum flower like crystals were formed on anodic porous alumina by 8-hydroxyquinoline

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Document pages: 10 pages

Abstract: Treatment of anodic porous alumina (APA) plates in hot water containing 8-hydroxyquinoline (HQ) can produce crystalline tris (8-hydroxyquinoline) aluminum (Alq3) microstrip   about 5-10 microns μ M wide and 5-20   μ M long. It is found that these microstrip lines gather on the surface to form flower like structure. X-ray diffraction studies show that the Alq3 microstrip consists of a microstrip with meridional structure α Phase composition. Alq3 microstrip shows green photoluminescence, with a peak of about 520   nm. Scanning electron microscope images and energy dispersive X-ray spectra show that the reaction is induced by the reaction between HQ and amorphous Al2O3 species on the surface of APA.

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