Growth and characterization of catalyst-free gallium arsenide nanorods on silicon substrates via molecular beam epitaxy
Abstract
Gallium arsenide nanorods were grown on [111] and [100] oriented silicon substrates via catalyst free growth using molecular beam epitaxy. Scanning electron microscopy reveals that the nanorods lengths range from 1-30 microns with diameter ranging from 60-200nm at densities of 6.2 nr/um². Raman scattering spectroscopy reveals broadening and down shifting of the LO phonon peaks indicative of nanorod formation. Photoluminescence spectra show a slight blue shift in the peaks of the samples corresponding to weak quantum confinement.
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Scouting the grand vista: From curiosity-driven research to real world application
28-30 October 2009, Development Academy of the Philippines Convention Center, Tagaytay City