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Aluminium/polyimide adhesion

Ramos, MMD; Stoneham, AM; Sutton, AP; (1993) Aluminium/polyimide adhesion. Acta Metallurgica Et Materialia , 41 (7) 2105 - 2111. 10.1016/0956-7151(93)90380-B. Green open access

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Abstract

We present a theoretical study of the interactions between isolated aluminium atoms and a polyimide surface and between polyimide and aluminium surface. The effect of surface modification on adhesion is also discussed. Self-consistent geometry optimization and molecular orbital calculations have been carried out within CNDO approximation in a cluster model framework. Our results suggest that aluminium atoms react preferentially with five and six-fold rings of polyimide when those chemical groups are present on the surface. The compound formation is accompanied by charge transfer from the metal atoms to polyimide and charge rearrangement among the polyimide atoms. Madelung potential calculations also suggest considerable core level shifts at polyimide atoms far from the reaction site. The adhesion of polyimide to aluminium surface is predicted to be somewhat weaker than that of aluminium to polyimide.

Type: Article
Title: Aluminium/polyimide adhesion
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/0956-7151(93)90380-B
Publisher version: http://dx.doi.org/10.1016/0956-7151(93)90380-B
Language: English
Additional information: Text made available to UCL Discovery by kind permission of Elsevier B.V., 2012
Keywords: SCANNING TUNNELING MICROSCOPY, ELECTRONIC-STRUCTURE, ION-BOMBARDMENT, METAL, MONOLAYERS, FILMS
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/59607
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