Impact of the liquid Phase shape on the structure of III-V nanowires

TY - JOUR

T1 - Impact of the liquid Phase shape on the structure of III-V nanowires

AU - Krogstrup, Peter

AU - Curiotto, S.

AU - Johnson, Erik

AU - Aagesen, Martin

AU - Nygård, Jesper

AU - Chatain, D.

PY - 2011/3/22

Y1 - 2011/3/22

N2 - The III-V nanowire structure (zinc blende or wurtzite) grown by the vapor-liquid-solid process is shown to be highly dependent on the parameters which shape the droplet at the top of the nanowire. Under conditions that the droplet volume does not exceed a certain value, it is demonstrated that when the nucleation of the solid starts at the solid-liquid-vapor triple line, a relatively large droplet volume and low wetting angle favor the formation of the wurtzite structure. We show that the effective V/III flux ratio is the primary parameter controlling the structure.

AB - The III-V nanowire structure (zinc blende or wurtzite) grown by the vapor-liquid-solid process is shown to be highly dependent on the parameters which shape the droplet at the top of the nanowire. Under conditions that the droplet volume does not exceed a certain value, it is demonstrated that when the nucleation of the solid starts at the solid-liquid-vapor triple line, a relatively large droplet volume and low wetting angle favor the formation of the wurtzite structure. We show that the effective V/III flux ratio is the primary parameter controlling the structure.

U2 - 10.1103/PhysRevLett.106.12550

DO - 10.1103/PhysRevLett.106.12550

M3 - Journal article

SN - 0031-9007

VL - 106

SP - 125505

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

ER -