Photothermal Absorption Spectroscopy of Individual Semiconductor Nanocrystals
Idioma
en
Article de revue
Este ítem está publicado en
Nano Letters. 2005-10-25, vol. 5, n° 11, p. 2160
American Chemical Society
Resumen en inglés
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 ...Leer más >
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.< Leer menos
Palabras clave en inglés
CdSe/ZnS semiconductor nanocrystals
absorption spectroscopy
multiexcitons
single molecule detection
Orígen
Importado de HalCentros de investigación