Abstract
The authors report the fabrication of the nanopillars with single InGaAs∕GaAs quantum well by selective-area metal organic vapor phase epitaxy. The standard diameter deviation of the nanopillars is about 8% and the standard deviation in their height about 5%. Their photoluminescence peak positions shift to the longer wavelength with an increase in the diameter of the nanopillars, which is not due to the quantum confinement effect in the radial or axial direction but due to the stoichiometry difference of the indium content in the nanopillars with different diameters.
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