Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5369293 | Applied Surface Science | 2006 | 5 Pages |
Abstract
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 50-150Â nm.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Katarzyna Rodrigo, Pawel Czuba, Bo Toftmann, Jørgen Schou, Roman Pedrys,