Abstract
We report on optical and structural properties of wurtzite-phase -doped quantum dots (QDs) embedded in an matrix, grown by plasma-assisted molecular beam epitaxy. The influence of on the size and shape of the QDs is analyzed. The optical properties are studied using cathodoluminescence and photoluminescence. transitions from the level show constant temperature behavior from to room temperature. The internal electric field and strains in the QDs yield a redshift and an additional broadening of the lines. We demonstrate that atoms are partially located in the QDs and partially at the interface.
1 More- Received 16 November 2004
DOI:https://doi.org/10.1103/PhysRevB.71.115310
©2005 American Physical Society