Interband and Intraband Optical Studies of PbSe Colloidal Quantum Dots

PbSe nanocrystal colloids exhibit a well-defined excitonic structure with the lowest energy exciton tuning from 0.5 to 1 eV, as a function of size

Brian L. Wehrenberg; Congjun Wang; Philippe Guyot-Sionnest

2002

Key concepts

Scholarcy highlights

  • PbSe nanocrystal colloids exhibit a well-defined excitonic structure with the lowest energy exciton tuning from 0.5 to 1 eV, as a function of size
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  • Upon pumping at 1.064 μm, the first exciton decay is consistent with radiative relaxation at low pump intensity and with Auger recombination at higher pump intensities
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