Date of Award

1-1-2012

Language

English

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

College/School/Department

Department of Nanoscale Science and Engineering

Program

Nanoscale Engineering

Content Description

1 online resource (xxxi, 218 pages) : illustrations (some color)

Dissertation/Thesis Chair

Fatemeh (Shadi) Shahedipour-Sandvik

Committee Members

Hassaram Bakhru, Alain C. Diebold, Suchismita Guha, Joan M. Redwing

Keywords

III-Nitrides on Si, Ion Implantation, MOCVD, Molecular Dynamics, Spectroscopic Ellipsometry, TEM, Ion implantation, Nitrides, Aluminum nitride

Subject Categories

Atomic, Molecular and Optical Physics | Materials Science and Engineering | Nanoscience and Nanotechnology

Abstract

III-Nitrides on Si are of great technological importance due to the availability of large area, epi ready Si substrates and the ability to heterointegrate with mature silicon micro and nanoelectronics. The major roadblock with realizing this is the large difference in thermal expansion coefficients and lattice constants between the two material systems. A novel technique developed in our research lab shows the potential of simultaneous and substantial reduction in dislocation and crack density in GaN on Si (111). Research undertaken in the current doctoral dissertation, validates the superior GaN quality on Si obtained using our technique and determines the factors responsible for its successful implementation.

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