Pulsed laser deposition of organic thin films

Excimer laser pulsed deposition was applied to the deposition of organic th in films on sapphire and on glass. The thin films were analyzed by X-ray di ffraction (XRD), micro-Raman spectroscopy and ESCA. It was found that the p roperties of the films were very close to that of the target materials. Str ong photoluminescence was observed for both Alq(3) and N,N'-diphenyl-N,N'-b is(3-methylphenyl)-(1, 1'-biphenyl)-4,4'-diamine (TPD), indicating that las er deposition is a viable method for the deposition of these organic materi als. An interesting increase in the photoluminescent (PL) signal of Alq(3)/ GaP multi-layers was observed. (C) 2000 Elsevier Science S.A. All rights re served.