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NUCLEATION AND GROWTH OF POLY(3-METHYLTHIOPHENE) ON INDIUM TIN OXIDE GLASS BY SCANNING TUNNELING MICROSCOPY
Tekijät: LUKKARI J, ALANKO M, HEIKKILA L, LAIHO R, KANKARE J
Kustantaja: AMER CHEMICAL SOC
Julkaisuvuosi: 1993
Lehti:: Chemistry of Materials
Tietokannassa oleva lehden nimi: CHEMISTRY OF MATERIALS
Lehden akronyymi: CHEM MATER
Vuosikerta: 5
Numero: 3
Aloitussivu: 289
Lopetussivu: 296
Sivujen määrä: 8
ISSN: 0897-4756
DOI: https://doi.org/10.1021/cm00027a010
Tiivistelmä
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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