Fabrication, optical characterization and modeling of strained core-shell nanowires

Details Fabrication, optical characterization and modeling of strained core-shell nanowires Fabrication, optical characterization and modeling of strained core-shell nanowires

2007-01-04

arxiv.org/abs/cond-mat/0701084v1

Thin Solid Films 515 (2006) 793-796

Physics

Condensed Matter

Materials Science

9 pages, 5 figures, Proceedings of the Eighth International Conference on Atomically Controlled Surfaces, Interfaces and Nanos

Scientific paper

10.1016/j.tsf.2005.12.199

Strained nanowires with varying InAs/InP core-shell thicknesses were grown using Chemical Beam Epitaxy. Microphotoluminescence spectroscopy, performed at low temperature, was then used to study the optical properties of single wires. Emission from the InAs core was observed and its dependence on the shell thickness/core diameter ratio was investigated. We found that it is possible to tune the emission energy towards 0.8 eV by controlling this ratio. We have compared the measured energies with calculated energies. Our findings are consistent with the wires having a hexagonal crystal structure.

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