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Cited by 227

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Influence of Nanowire Density on the Shape and Optical Properties of Ternary InGaAs Nanowires

Kim, Yong, Joyce, Hannah J., Gao, Qiang, Tan, H. Hoe, Jagadish, Chennupati, Paladugu, Mohanchand, Zou, Jin, Suvorova, Alexandra A.·2006·Nano Letters

Abstract

We have synthesized ternary InGaAs nanowires on (111)B GaAs surfaces by metal-organic chemical vapor deposition. Au colloidal nanoparticles were employed to catalyze nanowire growth. We observed the strong influence of nanowire density on nanowire height, tapering, and base shape specific to the nanowires with high In composition. This dependency was attributed to the large difference of diffusion length on (111)B surfaces between In and Ga reaction species, with In being the more mobile species. Energy dispersive X-ray spectroscopy analysis together with high-resolution electron microscopy study of individual InGaAs nanowires shows large In/Ga compositional variation along the nanowire supporting the present diffusion model. Photoluminescence spectra exhibit a red shift with decreasing nanowire density due to the higher degree of In incorporation in more sparsely distributed InGaAs nanowires.

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Metadata

Authors
Kim, Y., Joyce, H. J., Gao, Q., Tan, H. H., Jagadish, C., Paladugu, M., Zou, J., & Suvorova, A. A.
Venue
Nano Letters
Published
2006-02-21
Volume
6
Issue
4
Pages
599-604
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W1993753139
Cited by
227
References
1
FWCI
13.65
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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