Quantum dots and nanowires for optoelectronic device applications

Gao, Q., Kim, Y., Joyce, H., Lever, P., Mokkapati, Sudha ORCID: https://orcid.org/0000-0003-3260-6560, Buda, M., Tan, H. and Jagadish, C. 2006. Quantum dots and nanowires for optoelectronic device applications. Presented at: 2006 International Conference on Transparent Optical Networks, Nottingham, UK, 18-22 June 2006. ICTON 2006. , vol.2 pp. 242-245. 10.1109/ICTON.2006.248327

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Abstract

InGaAs quantum dots (QDs) and nanowires have been grown on GaAs by metal-organic chemical vapour deposition on GaAs (100) and (111)B substrates, respectively. InGaAs QD lasers were fabricated and characterised. Results show ground-state lasing at about 1150 nm in devices with lengths greater than 2.5 mm. We also observed a strong influence of nanowire density on nanowire height specific to nanowires with high indium 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. Selective area epitaxy for applications in quantum-dot optoelectronic device integration is also discussed in this paper

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
ISSN:	2162-7339
Last Modified:	23 Oct 2022 13:14
URI:	https://orca.cardiff.ac.uk/id/eprint/110071

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