Intra-excitonic relaxation dynamics in ZnO

The temperature and carrier-density dependent excitonic relaxation in bulk ZnO is studied by means of time-resolved photoluminescence. A rate-equation model is used to analyze the population dynamics and the transitions between different exciton states. Intra-excitonic (n=1) to (n=2) relaxation is c...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2011-12, Vol.99 (23), p.231910-231910-3
Main Authors: Chernikov, Alexej, Koch, Martin, Laumer, Bernhard, Wassner, Thomas A., Eickhoff, Martin, Koch, Stephan W., Chatterjee, Sangam
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The temperature and carrier-density dependent excitonic relaxation in bulk ZnO is studied by means of time-resolved photoluminescence. A rate-equation model is used to analyze the population dynamics and the transitions between different exciton states. Intra-excitonic (n=1) to (n=2) relaxation is clearly identified at low excitation densities and lattice temperatures with a characteristic time constant of 6±0.5 ps.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3668102