Abstract
Self-assembled InN nanodots have been prepared at 650 °C with various V/III ratios from 500 to 30 000 by metal-organic chemical vapor deposition (MOCVD). It is found that the dot density and morphological size as well as the optical properties all display drastic changes at V/III = 12 000. Generally, denser and smaller InN nanodots with higher emission energy and narrower linewidth were obtained when growth was conducted at V/III ratios slightly lower than 12 000 as compared to those at higher V/III ratios. The physical properties of our MOCVD-grown InN nanodots are sensitive to the surface structure and the morphology is very similar to molecular beam epitaxially grown GaN and InN films, which may be used as a guide to optimize the InN growth.
Original language | English |
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Article number | 295702 |
Pages (from-to) | 1-4 |
Number of pages | 4 |
Journal | Nanotechnology |
Volume | 20 |
Issue number | 29 |
DOIs | |
State | Published - 22 Jul 2009 |