The structural and optical characterization of high areal density Ga(x)In(1-x)P quantum dots on GaP

Nanotechnology. 2009 Oct 28;20(43):434016. doi: 10.1088/0957-4484/20/43/434016. Epub 2009 Oct 2.

Abstract

We present a study of the growth, morphology and optical properties of Ga(x)In(1-x)P quantum dots (QDs) grown by molecular beam epitaxy (MBE) for various Ga concentrations x. QD areal densities up to 10(11) cm(-2) have been achieved showing strong dependence on the amount of gallium supplied. Structural properties are evaluated using scanning electron microscopy (SEM) and atomic force microscopy (AFM) and are related to photoluminescence properties of the QDs. Both structural and optical properties are promising for future applications of the herein reported QDs in visible wavelength optoelectronic devices.

Publication types

  • Research Support, Non-U.S. Gov't