On the polarized emission from exciton complexes in GaN quantum dots
Artikel i vetenskaplig tidskrift, 2012

The optical linear polarization properties of exciton complexes in asymmetric Stranski-Krastanov grown GaN quantum dots have been investigated experimentally and theoretically. It is demonstrated that the polarization angle and the polarization degree can be conveniently employed to associate emission lines in the recorded photoluminescence spectra to a specific dot. The experimental results are in agreement with configuration interaction computations, which predict similar polarization degrees for the exciton and the biexciton (within 10%) in typical GaN quantum dots. The theory further predicts that the polarization degree can provide information about the charge state of the dot.

Författare

S. Amloy

Thaksin University

Linköpings universitet

F. Karlsson

Linköpings universitet

Thorvald Andersson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

P. O. Holtz

Linköpings universitet

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 100 021901

Ämneskategorier

Fysik

DOI

10.1063/1.3675572