Abstract
Based on time-resolved microscopic photoluminescence ( μ PL ) from single self-assembled GaAs/Al x Ga 1− x As quantum dots, we identify one of the emission lines as arising from positive trions (two holes and one electron) in these nominally undoped quantum dots. The trion is formed via tunneling of one electron out of the dot after optical excitation of a biexciton. The rise time of trion emission line matches the decay of the biexciton due to electron tunneling.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
