Uncovering forbidden optical transitions in PbSe nanocrystals - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Nano Letters Année : 2007

Uncovering forbidden optical transitions in PbSe nanocrystals

Résumé

The 1Sh,e−1Pe,h exciton transition energy of PbSe nanocrystals was determined via two-photon photoluminescence excitation spectroscopy and was found to be in good agreement with predictions from a tight-binding calculation. The two-photon excitation peak occurs at energies very close to a strong feature in the one-photon absorption spectrum and suggests that it should be assigned as a formally forbidden S−P transition. Leading explanations for the unusual strength of the forbidden transition are discussed.
Fichier non déposé

Dates et versions

hal-00283185 , version 1 (29-05-2008)

Identifiants

Citer

Jeffrey J. Peterson, Huang Libai, Christophe Delerue, Guy Allan, Todd D. Krauss. Uncovering forbidden optical transitions in PbSe nanocrystals. Nano Letters, 2007, 7, pp.3827-3831. ⟨10.1021/nl072487g⟩. ⟨hal-00283185⟩
25 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More