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Optical and structural properties of InAs quantum dots emitting near 1.5 μm grown on a GaAs substrate with an InxGa1-xAS metamorphic buffer layer

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3 Author(s)
Tavakoli, S.G. ; McMaster Univ., Hamilton ; Hulko, O. ; Thompson, D.A.

The structural and optical properties of InAs quantum dots (QDs) grown on an InxGa1-xAS metamorphic layer, with different x values, on GaAs substrates are presented. The results for various QD layer thicknesses and growth temperatures are reported. The density of the dots and their diameter increase as the In content in the metamorphic layer increases. For a layer of dots grown in a strained InGaAs quantum well, incorporated in a metamorphic layer with 30% In, room temperature photoluminescence emission at 1.57 μm has been demonstrated.

Published in:

Optoelectronic and Microelectronic Materials and Devices, 2006 Conference on

Date of Conference:

6-8 Dec. 2006

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