Exciton interactions in CdS nanocrystal aggregates in reverse micelle.
Here we report the formation and spectroscopic properties of cadmium sulfide (CdS) nanocrystal systems: individual nanocrystal and CdS aggregates. The optical absorption and luminescence spectra of the aggregated CdS nanocrystals and individual nanocrystal show exciton aggregate and individual exciton characteristics. Although it is not Bose-Einstein condensation, such aggregated quantum dots (QDs) seem to supply us opportunity to study the interactions and condensation of excitons in multi-QDs system, not in the separated QDs system.
Cao
Li
L
Nanoscale Physics & Device Laboratory, Institute of Physics, CAS, Beijing 100080, China.
Miao
Yanming
Y
Zhang
Zebo
Z
Xie
Sishen
S
Yang
Guozhen
G
Zou
Bingsuo
B