Emergence of intraband transitions in colloidal nanocrystals - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Optical Materials Express Année : 2018

Emergence of intraband transitions in colloidal nanocrystals

Résumé

The chemistry of nanocrystals enables the receipt of semiconductor nanoparticles with tunable optical properties. So far most scientific efforts have been focused on wide band gap materials to achieve a bright luminescence and a higher solar power conversion efficiency. Their properties in the infrared range of wavelengths are interesting as well. Two strategies can be used to achieve mid-infrared (mid-IR) transition, either interband transition in narrow band gap material or intraband transition in doped material. In this review, we discuss recent progress to achieve stable doped nanocrystals. We focus on mercury chalcogenide compounds since they are so far the only materials that combine mid-IR absorption with photoconductive properties in this range of energies. We discuss the origin of the doping and its tunability as well as how the doping impacts the optical, transport, and photodetection properties. Finally, we discuss Hg-free alternative materials, and present mid-IR transitions.
Fichier principal
Vignette du fichier
proof.pdf (903.26 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01764909 , version 1 (02-07-2020)

Identifiants

Citer

Amardeep Jagtap, Clément Livache, Bertille Martinez, Junling Qu, Audrey Chu, et al.. Emergence of intraband transitions in colloidal nanocrystals. Optical Materials Express, 2018, 8 (5), pp.1174. ⟨10.1364/OME.8.001174⟩. ⟨hal-01764909⟩
216 Consultations
94 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More