Carrier Thermalization and Biexciton Formation in a Polar ZnO/Zn${}_{0.84}$Mg${}_{0.16}$O Quantum Well Probed by Ultrafast Broadband Spectroscopy

Daniel O. Siebadji Tchuimeni, Marc Ziegler, Olivier Crégut +4

We investigate the ultrafast dynamics of excitons in a 2.6 nm-thick $ZnO/Z{\mathrm{n}}_{0.84}\mathrm{M}{\mathrm{g}}_{0.16}\mathrm{O}$ quantum well grown on a c-axis sapphire substrate, using non-degenerate time-…