Rydberg excitons in Cu 2 O microcrystals grown on a silicon platform - ENSTA Paris - École nationale supérieure de techniques avancées Paris Accéder directement au contenu
Article Dans Une Revue Communications Materials Année : 2020

Rydberg excitons in Cu 2 O microcrystals grown on a silicon platform

Résumé

Cuprous oxide (Cu 2 O) is a semiconductor with large exciton binding energy and significant technological importance in applications such as photovoltaics and solar water splitting. It is also a superior material system for quantum optics that enabled the observation of intriguing phenomena, such as Rydberg excitons as solid-state analogue to highly-excited atomic states. Previous experiments related to excitonic properties focused on natural bulk crystals due to major difficulties in growing high-quality synthetic samples. Here, the growth of Cu 2 O microcrystals with excellent optical material quality and very low point defect levels is presented. A scalable thermal oxidation process is used that is ideally suited for integration on silicon, demonstrated by on-chip waveguide-coupled Cu 2 O microcrystals. Moreover, Rydberg excitons in site-controlled Cu 2 O microstructures are shown, relevant for applications in quantum photonics. This work paves the way for the widespread use of Cu 2 O in optoe-lectronics and for the development of novel device technologies.
Fichier principal
Vignette du fichier
exciton.pdf (1.45 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02525210 , version 1 (30-03-2020)

Identifiants

Citer

Stephan Steinhauer, Marijn a M Versteegh, Samuel Gyger, Ali W Elshaari, Birgit Kunert, et al.. Rydberg excitons in Cu 2 O microcrystals grown on a silicon platform. Communications Materials, 2020, 1, pp.11. ⟨10.1038/s43246-020-0013-6⟩. ⟨hal-02525210⟩
280 Consultations
109 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More