PHOTOLUMINESCENCE SPECTROSCOPY OF SINGLE CDSE NANOCRYSTALLITE QUANTUMDOTS

Authors
EMPEDOCLES SA NORRIS DJ BAWENDI MG
Citation
Sa. Empedocles et al., PHOTOLUMINESCENCE SPECTROSCOPY OF SINGLE CDSE NANOCRYSTALLITE QUANTUMDOTS, Physical review letters, 77(18), 1996, pp. 3873-3876
Citations number
29
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
77
Issue
18
Year of publication
1996
Pages
3873 - 3876
Database
ISI
SICI code
0031-9007(1996)77:18<3873:PSOSCN>2.0.ZU;2-K
Abstract
We collect and spectrally resolve photoluminescence from single CdSe n anocrystallite quantum dots. The elimination of spectral inhomogeneiti es reveals resolution limited spectral linewidths (<120 mu eV at 10 K) more than 50 times narrower than expected from ensemble measurements. Light driven spectral diffusion is observed as a form of power broade ning. These studies confirm the atomiclike nature of the emitting stat e in CdSe nanocrystallites.