CUED Publications database

Growth of III-V nanowires and nanowire heterostructures by metalorganic chemical vapor deposition

Joyce, HJ and Kim, Y and Gao, Q and Tan, HH and Jagadish, C (2007) Growth of III-V nanowires and nanowire heterostructures by metalorganic chemical vapor deposition. Proceedings of the 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2007. pp. 567-570.

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Abstract

We have investigated the structural and optical properties of III-V nanowires, and axial and radial nanowire heterostructures, fabricated by metalorganic chemical vapor deposition. In addition to binary nanowires, such as GaAs, InAs, and InP, we have demonstrated ternary InGaAs and AlGaAs nanowires. Core-shell nanowires consisting of GaAs cores with AlGaAs shells, and core-multishell nanowires with alternating shells of AlGaAs and GaAs, exhibit strong photoluminescence. Axial segments of InGaAs have been incorporated within GaAs nanowires to form GaAs/InGaAs nanowire superlattices. We have developed a two-temperature growth procedure to optimize nanowire morphology. An initial high temperature step promotes nucleation and epitaxial growth of straight (111)B-oriented nanowires. Lower temperatures are employed subsequently, to minimise radial growth. © 2007 IEEE.

Item Type: Article
Uncontrolled Keywords: Heterostructure MOCVD Nanowire
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:08
Last Modified: 08 Dec 2014 02:23
DOI: 10.1109/NEMS.2007.352082