Photothermal Absorption Spectroscopy of Individual Semiconductor Nanocrystals
Langue
en
Article de revue
Ce document a été publié dans
Nano Letters. 2005-10-25, vol. 5, n° 11, p. 2160
American Chemical Society
Résumé en anglais
Photothermal heterodyne detection is used to record the first room-temperature absorption spectra of single CdSe/ZnS semiconductor nanocrystals. These spectra are recorded in the high cw excitation regime, and the observed ...Lire la suite >
Photothermal heterodyne detection is used to record the first room-temperature absorption spectra of single CdSe/ZnS semiconductor nanocrystals. These spectra are recorded in the high cw excitation regime, and the observed bands are assigned to transitions involving biexciton and trion states. Comparison with the single nanocrystals photoluminescence spectra leads to the measurement of spectral Stokes shifts free from ensemble averaging.< Réduire
Mots clés en anglais
CdSe/ZnS semiconductor nanocrystals
absorption spectroscopy
multiexcitons
single molecule detection
Origine
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