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Electronic structure of thin spin-coated polyimide layers

  • The conductivity of polyimide layers can be modified by several orders of magnitude by ion beam radiation. In order to understand the electronic structure of the pure polyimide before ion beam modification we focus in our preliminary experiments on spectroscopic investigations of thin as prepared polyimide films. The films were made by spin coating from a PMDA/ODA solution with subsequent vacuum annealing at 350°C. The layer thickness can be controlled by changing the concentration of PMDA/ODA in the solution realizing a thickness down to 3.5nm. For the characterization of the as prepared thin polyimide films the techniques NEXAFS, ResPES, XPS and CIS were applied at the U49/2-PGM2 beam line of Bessy II, Berlin. Our data including the valence band, core levels and absorption spectrum were compared with theoretical LCAO calculations. Based on these results we are able to attribute all spectral features to the specific atomic bonds in the molecule.

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Author: Daniel Friedrich, Yuri Koval, Paul Müller, Dieter SchmeißerORCiD
URL:http://www.dpg-verhandlungen.de/year/2011/conference/dresden/part/ds/session/63/contribution/3
ISSN:0420-0195
Title of the source (German):Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 46
Publisher:Deutsche Physikalische Gesellschaft
Place of publication:Bad Honnef
Document Type:Conference Proceeding
Language:English
Year of publication:2011
First Page:S. 311
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Angewandte Physik und Halbleiterspektroskopie
Institution name at the time of publication:Fakultät für Mathematik, Naturwissenschaften und Informatik (eBTU) / LS Angewandte Physik / Sensorik
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