Physics – Condensed Matter – Materials Science
Scientific paper
2007-04-04
Physics
Condensed Matter
Materials Science
13 pages, 9 figures, 1 table, conference
Scientific paper
We investigated structure and morphology of PTFE layers deposited by vacuum process in dependence on deposition parameters: deposition rate, deposition temperature, electron activation energy and activation current. Pentacene (PnC) layers deposited on top of those PTFE films are used as a tool to demonstrate the orienting ability of the PTFE layers. The molecular structure of the PTFE films was investigated by use of infrared spectroscopy. By means of ellipsometry, values of refractive index between 1.33 and 1.36 have been obtained for PTFE films in dependence on deposition conditions. Using the cold friction technique orienting PTFE layers with unidirectional grooves are obtained. On top of these PTFE films oriented PnC layers were grown. The obtained order depends both on the PTFE layer thickness and on PnC growth temperature.
Grytsenko K.
Prelipceanu M.
Prelipceanu O. S.
Schrader Sven
Tudose O. G.
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