Temperature‐Dependent Growth Direction of Ultrathin ZnSe Nanowires

ZnSe nanowires (NWs) are grown on GaAs substrates via vapor–solid–liquid molecular beam epitaxy. TEM studies show that ZnSe NWs with diameters of about 10 nm, grown at a high temperature, favor the <110> direction (see image), whereas those grown at a low temperature favor the <111> direction; NW diameter also affects the growth direction.