Article Dans Une Revue Superlattices and Microstructures Année : 2016

Growth and thermal properties of doped monocrystalline titanium-silicide based quantum dot superlattices

Résumé

This paper presents the growth mechanism of a monocrystalline silicide quantum dot superlattices (QDSL) grown by reduced pressure chemical vapor deposition (RPCVD). QDSL are made of TiSi2-based nanodots scattered in a p-doped Si90Ge10 matrix. It is the first time that the growth of a p-type monocrystalline QDSL is presented. We focus here on the growth mechanisms of QDSL and the influence of nanostructuration on their thermal properties. Thus, the dots surface deposition, the dots embedding mechanisms and the final QDSL growths are studied. The crystallographic structures and chemical properties are presented, as well as the thermal properties. It will be shown that some specific mechanisms occur such as the formation of self-formed quantum well superlattices and the dopant accumulation near the quantum dots. Finally, a slight decrease of the QDSL thermal conductivity has been measured compared to the reference sample.

Dates et versions

hal-02059878 , version 1 (07-03-2019)

Identifiants

Citer

G. Savelli, S. Silveira Stein, G. Bernard-Granger, P. Faucherand, L. Montes. Growth and thermal properties of doped monocrystalline titanium-silicide based quantum dot superlattices. Superlattices and Microstructures, 2016, 92, pp.249-255. ⟨10.1016/j.spmi.2016.02.042⟩. ⟨hal-02059878⟩
205 Consultations
0 Téléchargements

Altmetric

Partager

  • More