Growth of long III-As NWs by hydride vapor phase epitaxy

Abstract

Introduction I. Thermodynamics and kinetics of HVPE growth II. GaAs NWs grown by Au-catalysed VLS-HVPE II.1. Brief recall of the issues of early growth experiments of GaAs NWs II.2. Long untapered rodlike cubic GaAs NWs II.3. The polytypism issue in GaAs NWs with diameter less than 10 nm III. Integration of GaAs NWs on silicon substrate III.1. Introduction III.2. Au-catalysed VLS-HVPE of GaAs NWs on Si: the nucleation issue III.3. Au-catalysed VLS growth of GaAs:Si NWs on Si: the doping issue IV. Self-catalysed growth of GaAs and InAs NWs on silicon substrate IV.1. Thermodynamic conditions to form Ga and In liquid droplets from chloride gaseous molecules IV.2. Self-catalysed growth of GaAs NWs on Si IV.3. Growth of InAs NWs on Si Summary Abbreviation: nanowire=NW; nanowires=NWs; vapor liquid solid=VLS; vapor solid=VS.