Muhammad Usman

N04–Bismuth-containing GaAs core-shell nanowires

Usman Muhammad

This work theoretically investigates the electronic and optical properties of GaBixAs1–x/GaAs core–shell and GaAs/GaBixAs1–x/GaAs multi-core–shell nanowires. Our results show a large tuning of absorption wavelength (0.9 µ to 1.6 µ) by varying Bi composition and/or nanowire diameters. The computed polarisation dependent optical spectra indicate the possibility to incorporate such nanowires in photonic devices desiring isotropic […]