Spectroscopic and structural studies of scandium diphthalocyanine films

• Published in: Thin solid films Vol. 182; no. 1; pp. 307 - 318
• Main Authors: Robinet, S., Clarisse, C., Gauneau, M., Salvi, M., Delamar, M., Leclerc, M., Lacharme, J.P.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 20.12.1989; Elsevier Science
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of specific thin films; Physics; Scanning electron microscopy; Electrical conductivity; Scandium Complexes; Visible absorption; Polycrystal; Infrared absorption; Organic ligand; Secondary ion mass spectrometry; Amorphous state; Experimental study; X ray diffraction; Texture; Thin film; Metallophthalocyanine; Preparation; Photoelectron spectrometry; Auger electron spectrometry; Organic compounds
• ISSN: 0040-6090; 1879-2731
• DOI: 10.1016/0040-6090(89)90267-8

Scandium diphthalocyanine (ScPc 2) thin films were deposited by vacuum sublimation at a pressure of ca. 10 −6 Torr onto substrates either at room temperature or heated above 370K. Amorphous and polycrystalline films were obtained and characterized by visible and IR absorption spectroscopies, X-ray diffraction and scanning electron microscopy. Conductivity measurements showed that the film conductivity is three orders of magnitude higher for the polycrystalline films than for the amorphous films. Secondary ion mass spectroscopy yields a bulk oxygen concentration of around one atom for three ScPc 2 molecules while X-ray photoelectron spectroscopy and Auger electron spectroscopy yield a surface concentration approximately ten times higher.