Homework 7 Solution Spring 2011

Homework 7 Solution - EMA 4121 Interfacial Engineering Homework 7 Due December 3 2010 1 Schematically illustrate using O to represent adsorbate

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EMA 4121 Interfacial Engineering Homework # 7 Due: December 3, 2010 1. Schematically illustrate, using “O” to represent adsorbate atoms, three structural variants of thin film growth. Under each illustration, identify the mechanism by name and briefly describe the nature of the interaction between adsorbate and substrate for each system. Variations of thin film growth: (i) Volmer – Weber : This is the most common growth mode of thin film., where “islands” of adsorbate atoms coalesce to form clusters. This mode often occurs when the substance & thin film are dissimilar materials with different crystal structures and chemistry leading to a non-epitaxial relationship. As a result, the adsorbates tend to interact with each other more than the substrate. (ii) Frank Van-Der Merwe : FVDM; also called layer growth, occurs when the thin film and substrate are of (iii)
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This note was uploaded on 11/16/2011 for the course EMA 4121 taught by Professor Moudgil during the Spring '11 term at University of Florida.

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Homework 7 Solution - EMA 4121 Interfacial Engineering Homework 7 Due December 3 2010 1 Schematically illustrate using O to represent adsorbate

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