The structural and optical properties of InN nanodots grown with various V/III ratios by metal-organic chemical vapor deposition

S. F. Fu, S. M. Wang, L. Lee, C. Y. Chen, W. C. Tsai, Wu-Ching Chou, M. C. Lee, Wen-Hao Chang, Wei-Kuo Chen

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4 Scopus citations

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 languageEnglish
Article number295702
Pages (from-to)1-4
Number of pages4
JournalNanotechnology
Volume20
Issue number29
DOIs
StatePublished - 22 Jul 2009

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