Article ID Journal Published Year Pages File Type
10707325 Journal of Crystal Growth 2011 4 Pages PDF
Abstract
We propose a new method to isolate and distribute the photoluminescence emission wavelengths of InAs quantum dots (QDs) over a wide-wavelength range by the growth of the partial GaAs capping layer at low temperature and annealing processes. When the partial capping layer was grown at 485 °C, the emission wavelengths of the QDs were distributed within a small range around the mean wavelength. On the other hand, when the partial capping layer was grown at a lower temperature of 423 °C, the emission wavelengths of the individual QDs were isolated and distributed over a wide range. Thus fabricated QDs are effective for the QD based devices such as single photon sources.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
Authors
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