Photocurrent spectroscopy of self assembled InAs/GaInAsP/InP(113)B quantum dots
Résumé
In this paper we present photocurrent (PC) spectroscopy of InAs/InP(113)B quantum dots (QD) as a function of bias and temperature. The PC spectra reflect the optical absorption of the QDs layers and reveal the QD electronic structure. A simple model, used to determine the energy levels into the QDs, gives results consistent with the PC spectra. Morever, the PC signal is governed by a competition between recombinaison and escape processes (themal and tunneling escape) of photogenerated carriers.
Domaines
Optique / photonique| Origine | Fichiers produits par l'(les) auteur(s) |
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