PUMA
Istituto dei materiali per l'elettronica ed il magnetismo     
Munoz-Matutano G., Alen B., Martinez-Pastor J., Seravalli L., Frigeri P., Franchi S. Optical switching of quantum states inside self-assembled quantum dots. In: Superlattices and Microstructures, vol. 43 (5-6) pp. 494 - 499. Elsevier Science, 2008.
 
 
Abstract
(English)
Photoluminescence and excitation of photoluminescence spectroscopy have been performed for two kinds of single InAs self-assembled quantum dots grown on GaAs. The presence of unintentional impurities (donors and acceptors) offers the possibility to switch from negative to positively charged excitons by selectively exciting impurity related optical transitions.
DOI: 10.1016/j.spmi.2007.07.028
Subject Single QD spectroscopy
Trion recombination
semiconductor quantum dots
III-V semiconductors
73.63.Kv;
81.07.Ta;
78.67.Hc


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