Optical Study of GaAs quantum dots embedded into AlGaAs nanowires

V. N. Kats, V. P. Kochereshko, A. V. Platonov, T. V. Chizhova, G. E. Cirlin, A. D. Bouravleuv, Yu. B. Samsonenko, I. P. Soshnikov, E. V. Ubyivovk, J. Bleuse, H. Mariette

Published 2011-04-17Version 1

We report on the photoluminescence characterization of GaAs quantum dots embedded into AlGaAs nano-wires. Time integrated and time resolved photoluminescence measurements from both an array and a single quantum dot/nano-wire are reported. The influence of the diameter sizes distribution is evidenced in the optical spectroscopy data together with the presence of various crystalline phases in the AlGaAs nanowires.