Abstract
The effects of the thermal annealing on the conduction band states in self-assembled quantum dots (QDs) have been investigated using midinfrared absorption and photocurrent spectroscopies. We demonstrate a significant tuning of the intraband electron transition energies (∼15%) upon annealing due to the reduction in the confinement energy, observed both in intraband absorption and photocurrent spectra. More uniform QD size distribution in the growth direction after annealing results in narrowing of the absorption peak. We also observe additional intersublevel transitions arising after QD annealing.
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
