Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Modeling the dynamics of interface morphology and crystal phase change in self-catalyzed GaAs nanowires. / Wilson, Debra Paige ; Sokolovskii, A. S. ; LaPierre, Ray R.; Panciera, F.; Glas, F.; Dubrovskii, V. G. .
в: Nanotechnology, Том 31, № 48, 485602, 27.11.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Modeling the dynamics of interface morphology and crystal phase change in self-catalyzed GaAs nanowires
AU - Wilson, Debra Paige
AU - Sokolovskii, A. S.
AU - LaPierre, Ray R.
AU - Panciera, F.
AU - Glas, F.
AU - Dubrovskii, V. G.
N1 - Publisher Copyright: © 2020 IOP Publishing Ltd.
PY - 2020/11/27
Y1 - 2020/11/27
N2 - The droplet contact angle and morphology of the growth interface (vertical, tapered or truncated facets) are known to affect the zincblende (ZB) or wurtzite (WZ) crystal phase of III-V nanowires (NWs) grown by the vapor-liquid-solid method. Here, we present a model which describes the dynamics of the morphological evolution in self-catalyzed III-V NWs in terms of the time-dependent (or length-dependent) contact angle or top nanowire radius under varying material fluxes. The model fits quite well the contact angle dynamics obtained by in situ growth monitoring of self-catalyzed GaAs NWs in a transmission electron microscope. These results can be used for modeling the interface dynamics and the related crystal phase switching and for obtaining ZB-WZ heterostructures in III-V.
AB - The droplet contact angle and morphology of the growth interface (vertical, tapered or truncated facets) are known to affect the zincblende (ZB) or wurtzite (WZ) crystal phase of III-V nanowires (NWs) grown by the vapor-liquid-solid method. Here, we present a model which describes the dynamics of the morphological evolution in self-catalyzed III-V NWs in terms of the time-dependent (or length-dependent) contact angle or top nanowire radius under varying material fluxes. The model fits quite well the contact angle dynamics obtained by in situ growth monitoring of self-catalyzed GaAs NWs in a transmission electron microscope. These results can be used for modeling the interface dynamics and the related crystal phase switching and for obtaining ZB-WZ heterostructures in III-V.
KW - contact angle
KW - crystal phase
KW - nanowire radius
KW - self-catalyzed GaAs nanowires
KW - GROWTH
UR - http://www.scopus.com/inward/record.url?scp=85091646413&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/efbde220-99e6-36ca-b809-51a1e0e3f9d3/
U2 - 10.1088/1361-6528/abb106
DO - 10.1088/1361-6528/abb106
M3 - Article
VL - 31
JO - Nanotechnology
JF - Nanotechnology
SN - 0957-4484
IS - 48
M1 - 485602
ER -
ID: 70924481