Stimulated luminescence of ZnO nanocrystals of different shape grown by the method of gas transport - Archive ouverte HAL
Article Dans Une Revue Journal of Optics A: Pure and Applied Optics Année : 2006

Stimulated luminescence of ZnO nanocrystals of different shape grown by the method of gas transport

An Gruzintsev
  • Fonction : Auteur
An Redkin
  • Fonction : Auteur
Ga Emelchenko
  • Fonction : Auteur

Résumé

The influence of the shape and size of zinc oxide nanocrystals on the threshold and directionality of lasing in the UV spectral region is investigated. Columnar-shaped nanocrystals with hexagonal faceting must have a diameter of 100-200 nm to provide sufficient optical excitation power for nanoresonators; this is comparable with the absorption length of the exciting light. A mode structure of the laser emission directed preferentially along the axis of the hexagonal prisms is observed. Different lasing mechanisms are established for nanoprisms and nanopyramids with a hexagonal base. High homogeneity in shape and size of ZnO nanocrystals, and the dependence of these parameters on the conditions of gas transport synthesis are established by electron microscope methods.

Dates et versions

hal-01281568 , version 1 (02-03-2016)

Identifiants

Citer

An Gruzintsev, An Redkin, Ga Emelchenko, Carlos Barthou, P Benalloul. Stimulated luminescence of ZnO nanocrystals of different shape grown by the method of gas transport. Journal of Optics A: Pure and Applied Optics, 2006, 8 (4, SI), pp.S148-S152. ⟨10.1088/1464-4258/8/4/S15⟩. ⟨hal-01281568⟩
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