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Electrodeposition of lithium phthalocyanine thin films: Part I. Structure and morphology

Published online by Cambridge University Press:  31 January 2011

M. Brinkmann ,
S. Graff ,
C. Chaumont  and
J-J. André
M. Brinkmann*
Affiliation:
Institut Charles Sadron, 6 rue Boussingault, 67083 Strasbourg Cedex, France
S. Graff
Affiliation:
Institut Charles Sadron, 6 rue Boussingault, 67083 Strasbourg Cedex, France
C. Chaumont
Affiliation:
Institut de Physique et de Chimie des Mat’eriaux de Strasbourg, Groupe des Matériaux Inorganiques (GMI), 23 rue du Loess, 67037 Strasbourg Cedex, France
J-J. André
Affiliation:
Institut Charles Sadron, 6 rue Boussingault, 67083 Strasbourg Cedex, France
*
a)Address all correspondence to this author. Present address: ISM-CNR, 101 via Gobetti, 40129 Bologna, Italy. e-mail: martin@ismll.ism.bo.cnr.it
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Abstract

A new thin film synthesis route based on the electrochemical oxidation of PcLi2 and deposition of lithium phthalocyanine (PcLi) onto indium tin oxide (ITO) substrate is demonstrated. The effects on the thin film morphology of various parameters such as the electrolysis time, the nature of the solvent, and the oxidation potential are investigated. The thin film growth is studied via x-ray diffraction, potential step experiments, and ex situ scanning electron microscopy. Various morphologies of the x-form thin films are observed for different electrolysis times and solvents. Thin films grown in acetonitrile of thickness above 1 μm consist in unidirectionally oriented needle-shaped crystallites.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 5 , May 1999 , pp. 2162 - 2172
Copyright
Copyright © Materials Research Society 1999

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