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Physics and chemistry of material surfaces under ambient conditions of gases and liquids: What’s new?

Published online by Cambridge University Press:  09 August 2013

Miquel Salmeron
Miquel Salmeron*
Affiliation:
Lawrence Berkeley National Laboratory, Materials Science Division; mbsalmeron@lbl.gov
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Abstract

The atoms at the surfaces of materials represent the frontier separating the bulk from the surrounding medium. Over the last decades, scientists have intensely studied the structure and properties of surfaces with the goal of understanding and improving the electronic and chemical properties of materials. The surface–medium interaction determines wetting, friction, chemical, biological, and electronic properties. The activity of catalysts, phenomena occurring in water droplets and particles in the atmosphere, and the electronic properties of semiconductor devices are direct consequences of surface-environment interactions. While the need to pursue studies in the normal environment that surrounds a material has always been recognized, the techniques used in the past have only partially fulfilled this need, as most of them work best under high vacuum conditions. My research over the last 10 years has focused on discovering the structure of a surface and its dynamics in real life—in everyday environments. This required the development of new techniques and methods. I present some of the new tools developed in my laboratory and new properties that were discovered by their application in the areas of environmental science, surface chemistry, and catalysis.

Type
Research Article
Information
MRS Bulletin , Volume 38 , Issue 8: Surface-enhanced Raman spectroscopy: Substrates and materials , August 2013 , pp. 650 - 657
Copyright
Copyright © Materials Research Society 2013 

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