Exciton and biexciton luminescence from single GaN/AlN quantum dots in nanowires.

Renard, Julien; Songmuang, Rudeesun; Bougerol, Catherine; Daudin, Bruno; Gayral, Bruno · Nano Lett · 2008

basic_science · Level V

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Abstract

We present a microphotoluminescence study of single GaN/AlN quantum dots embedded in single nanowires. At low excitation power, single exciton lines with full width at half-maximum as narrow as 1 meV are observed. The study of the excitation power dependence of the emission allows us to identify the biexciton transitions with binding energies ranging from 20 to 40 meV.

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