A relation derived from the Kubo formula shows that optical conductivity measurements below the gap frequency in doped semiconductors can be used to probe directly the time-dependent quantum dynamics of charge carriers. This allows to extract fundamental quantities such as the elastic and inelastic scattering rates, as well as the localization length in disordered systems. When applied to crystalline organic semiconductors, an incipient electron localization caused by large dynamical lattice disorder is unveiled, implying a breakdown of semiclassical transport.
Transient localization in crystalline organic semiconductors
S. Ciuchi;S. Fratini;
2011
Abstract
A relation derived from the Kubo formula shows that optical conductivity measurements below the gap frequency in doped semiconductors can be used to probe directly the time-dependent quantum dynamics of charge carriers. This allows to extract fundamental quantities such as the elastic and inelastic scattering rates, as well as the localization length in disordered systems. When applied to crystalline organic semiconductors, an incipient electron localization caused by large dynamical lattice disorder is unveiled, implying a breakdown of semiclassical transport.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
prod_199756-doc_43822.pdf
accesso aperto
Descrizione: Transient localization in crystalline ...
Tipologia:
Versione Editoriale (PDF)
Licenza:
Altro tipo di licenza
Dimensione
221.47 kB
Formato
Adobe PDF
|
221.47 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
