Si-Doping in GaN Grown by Metal-Organic Vapor Phase Epitaxy Using Tetraethylsilane

Abstract
A Si-doped GaN layer was grown by MOVPE (metal-organic vapor phase epitaxy) using tetraethylsilane (TeESi) as the dopant. The Hall effect was studied between 11 K and 300 K. The electron concentration was observed to increase with the increase in the TeESi flow rate. The activation energy E D for ionization of shallow donors was determined to be 27 meV.