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Surface Patterning by Laser Induced Localized Chemistry

Published online by Cambridge University Press:  17 March 2011

Aurélie Lachish-Zalait ,
David Zbaida ,
Eugenia Klein  and
Michael Elbaum
Aurélie Lachish-Zalait
Affiliation:
Materials and Interfaces Dept., The Weizmann Institute of Science, Rehovot 76100, ISRAEL
David Zbaida
Affiliation:
Materials and Interfaces Dept., The Weizmann Institute of Science, Rehovot 76100, ISRAEL
Eugenia Klein
Affiliation:
Electron Microscopy Unit, The Weizmann Institute of Science, Rehovot 76100, ISRAEL
Michael Elbaum
Affiliation:
Materials and Interfaces Dept., The Weizmann Institute of Science, Rehovot 76100, ISRAEL
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Abstract

A method is described for creating microscale-patterned surfaces by direct-write lithography. A tightly focused, low-power infrared laser beam is applied to a homogeneous precursor solution containing soluble reagents. When the laser is focused directly at a glass-solution interface, it initiates the local precipitation of a solid product that attaches firmly to the substrate. Operating the laser momentarily forms isolated spots, while moving the microscope stage or the laser spot draws continuous lines. The method has been demonstrated for metallic silver and gold, for oxidized copper, and for molybdenum disulfide, suggesting a broad generality in the range of suitable materials. Silver patterns were further modified by chemical reactions. Their morphology and physical properties can be altered during deposition by the use of capping agents, which may provide a handle for further functionalization.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 636: Symposium D – Nonlithographic and Lithographic Methods of Nanofabrication-From Ultralarge Scale , 2000 , D9.20.1
Copyright
Copyright © Materials Research Society 2001

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