1 Risø National Laboratory for Sustainable Energy, Technical University of Denmark2 unknown3 Department of Photonics Engineering, Technical University of Denmark
The dependence of the surface morphology on the substrate temperature during film deposition was investigated for polyethylene glycol (PEG) films by matrix-assisted pulsed laser evaporation (MAPLE). The surface structure was studied with a combined technique of optical imaging and AFM measurements. There was a clear difference between the films produced below and above the melting point of PEG. For temperatures above the melting point, the polymer material was distributed non-uniformly over the substrate with growths areas, where cluster-like structures merge into large islands of micrometer size. At these temperatures, the islands in the investigated growth areas cover most of the bottom layer which has a typical height of 50-150 nm. (c) 2005 Elsevier B.V. All rights reserved.
Applied Surface Science, 2006, Vol 252, Issue 13, p. 4824-4828
Diagnostik og behandling
Main Research Area:
European Materials Research society 2005 - Symposium-J: Advances in Laser and Lamp Processing of Functional Materials - EMRS 2005 Symposium J