Photoluminescence Spectroscopy of Single CdSe Nanocrystallite Quantum Dots
- 28 October 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 77 (18) , 3873-3876
- https://doi.org/10.1103/physrevlett.77.3873
Abstract
We collect and spectrally resolve photoluminescence from single CdSe nanocrystallite quantum dots. The elimination of spectral inhomogeneities reveals resolution limited spectral linewidths ( at 10 K) more than 50 times narrower than expected from ensemble measurements. Light driven spectral diffusion is observed as a form of power broadening. These studies confirm the atomiclike nature of the emitting state in CdSe nanocrystallites.
Keywords
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