Paper
15 October 2012 VUV modification of surfaces to induce film formation
Author Affiliations +
Abstract
This work presents further evaluation of the mechanisms driving the formation of molecular contaminant films and arrays of droplets on silicon and other types of space system optical surfaces. A simple model is presented describing a competition between the self-cohesive forces of a liquid-like droplet and the adhesive forces between the droplet and surface. We show in this work that irradiation of the silicon surface prior to contaminant deposition increases the adhesive forces, enhancing film formation. However, the surface states achieved by the VUV exposure cannot be reproduced by simple approaches such as solvent wiping. Higher intensity VUV exposure produces a silicon surface that allows film formation for even very pure contaminant analogs with high self-cohesion.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dianne J. Coleman and Kenneth T. Luey "VUV modification of surfaces to induce film formation", Proc. SPIE 8492, Optical System Contamination: Effects, Measurements, and Control 2012, 84920D (15 October 2012); https://doi.org/10.1117/12.931009
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Vacuum ultraviolet

Silicon

Silicon films

Adhesives

Lamps

Natural surfaces

Oxides

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