A1 Refereed original research article in a scientific journal
NUCLEATION AND GROWTH OF POLY(3-METHYLTHIOPHENE) ON INDIUM TIN OXIDE GLASS BY SCANNING TUNNELING MICROSCOPY
Authors: LUKKARI J, ALANKO M, HEIKKILA L, LAIHO R, KANKARE J
Publisher: AMER CHEMICAL SOC
Publication year: 1993
Journal:: Chemistry of Materials
Journal name in source: CHEMISTRY OF MATERIALS
Journal acronym: CHEM MATER
Volume: 5
Issue: 3
First page : 289
Last page: 296
Number of pages: 8
ISSN: 0897-4756
DOI: https://doi.org/10.1021/cm00027a010
Abstract
We report here results of a scanning tunneling microscopy (STM) and photogalvanic study of the nucleation and growth of poly(3-methylthiophene) on indium-tin oxide (ITO) electrodes. ITO itself exhibits an irregular surface structure consisting of grains with dimensions of 0.1-0.3 mum, separated by deep recesses. Polymer growth begins as oligomer islets on top of the grains and proceeds to form a thin film. Several polymeric features, like fibrils and large featureless bundles, can be detected during later stages of polymerization. Finally macroscopic growth centers appear on the surface and their evolution determines the structure of a thick film.
We report here results of a scanning tunneling microscopy (STM) and photogalvanic study of the nucleation and growth of poly(3-methylthiophene) on indium-tin oxide (ITO) electrodes. ITO itself exhibits an irregular surface structure consisting of grains with dimensions of 0.1-0.3 mum, separated by deep recesses. Polymer growth begins as oligomer islets on top of the grains and proceeds to form a thin film. Several polymeric features, like fibrils and large featureless bundles, can be detected during later stages of polymerization. Finally macroscopic growth centers appear on the surface and their evolution determines the structure of a thick film.
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