期刊
TRIBOLOGY LETTERS
卷 21, 期 1, 页码 1-16出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11249-005-9001-8
关键词
AFM probe; wear; adhesion; nanotribology; coating; image resolution
Tip wear of silicon probes used for an atomic force microscope (AFM) is a critical issue. Wear can result in an increase of tip radius and adhesion between tip and sample, thus reducing the image resolution and introducing artifacts. In order to reduce adhesion, friction, and wear so as to reduce tip related artifacts, liquid lubricant (Z-TETRAOL), self-assembled monolayers (pentafluorophenyltriethoxysilane (PFPTES)), and fluorocarbon polymer (Fluorinert (TM)) were applied on the silicon probe. A comprehensive investigation of adhesion, friction, and wear of the uncoated/coated tips in both ambient air and various humidity levels as well as the influence of the coatings on the image resolution was performed. Experiments showed that the coatings reduced the adhesion, friction, and wear of the silicon tip, improved the initial image resolution, and exhibited less deterioration as compared to that of uncoated tip in the long-term test.
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