Research output: Contribution to journal › Article › peer-review
Free Energy of Nucleus Formation during Growth of III-V Semiconductor Nanowires. / Dubrovskii, V. G.; Sokolovskii, A. S. ; Shtrom, I. V. .
In: Technical Physics Letters, Vol. 46, No. 9, 01.09.2020, p. 889-892.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Free Energy of Nucleus Formation during Growth of III-V Semiconductor Nanowires
AU - Dubrovskii, V. G.
AU - Sokolovskii, A. S.
AU - Shtrom, I. V.
N1 - Publisher Copyright: © 2020, Pleiades Publishing, Ltd.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - An expression for the free energy of nucleus formation from liquid phase of a catalyst during growth of III–V semiconductor nanowires (NWs) via the vapor–liquid–solid (VLS) mechanism has been derived with allowance for depletion of the number of atoms of the group V element (As) in the drop as a result of the island growth during As deposition from the gas–vapor phase. Various regimes of island formation, including a regime with growth arrest at small As concentrations in the drop have been theoretically studied. It is established that the growth arrest takes place when the As concentration decreases to an equilibrium level. The obtained results can be used in simulations of the growth kinetics of III–V semiconductor NWs, statistics of their nucleation, and NW length distribution functions, as well as for modeling of the crystalline phase growth and doping processes.
AB - An expression for the free energy of nucleus formation from liquid phase of a catalyst during growth of III–V semiconductor nanowires (NWs) via the vapor–liquid–solid (VLS) mechanism has been derived with allowance for depletion of the number of atoms of the group V element (As) in the drop as a result of the island growth during As deposition from the gas–vapor phase. Various regimes of island formation, including a regime with growth arrest at small As concentrations in the drop have been theoretically studied. It is established that the growth arrest takes place when the As concentration decreases to an equilibrium level. The obtained results can be used in simulations of the growth kinetics of III–V semiconductor NWs, statistics of their nucleation, and NW length distribution functions, as well as for modeling of the crystalline phase growth and doping processes.
KW - III–V nanowires
KW - nucleus
KW - monocentric nucleation
KW - free energy
KW - PHASE
KW - III-V nanowires
KW - MECHANISM
UR - http://www.scopus.com/inward/record.url?scp=85092378846&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/fb4040b0-6f82-3ff1-9683-511de075a70f/
U2 - 10.1134/S1063785020090187
DO - 10.1134/S1063785020090187
M3 - Article
VL - 46
SP - 889
EP - 892
JO - Technical Physics Letters
JF - Technical Physics Letters
SN - 1063-7850
IS - 9
ER -
ID: 70923714