Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Effect of crystal structure on the Young's modulus of GaP nanowires. / Alekseev, Prokhor A.; Borodin, Bogdan R.; Geydt, Pavel; Khayrudinov, Vladislav; Bespalova, Kristina; Kirilenko, Demid A.; Reznik, Rodion R.; Nashchekin, Alexey; Haggren, Tuomas; Lahderanta, Erkki; Cirlin, George E.; Lipsanen, Harri; Dunaevskiy, Mikhail S.
в: Nanotechnology, Том 32, № 38, 385706, 17.09.2021.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Effect of crystal structure on the Young's modulus of GaP nanowires
AU - Alekseev, Prokhor A.
AU - Borodin, Bogdan R.
AU - Geydt, Pavel
AU - Khayrudinov, Vladislav
AU - Bespalova, Kristina
AU - Kirilenko, Demid A.
AU - Reznik, Rodion R.
AU - Nashchekin, Alexey
AU - Haggren, Tuomas
AU - Lahderanta, Erkki
AU - Cirlin, George E.
AU - Lipsanen, Harri
AU - Dunaevskiy, Mikhail S.
PY - 2021/9/17
Y1 - 2021/9/17
N2 - Young's modulus of tapered mixed composition (zinc-blende with a high density of twins and wurtzite with a high density of stacking faults) gallium phosphide (GaP) nanowires (NWs) was investigated by atomic force microscopy. Experimental measurements were performed by obtaining bending profiles of as-grown inclined GaP NWs deformed by applying a constant force to a series of NW surface locations at various distances from the NW/substrate interface. Numerical modeling of experimental data on bending profiles was done by applying Euler-Bernoulli beam theory. Measurements of the nano-local stiffness at different distances from the NW/substrate interface revealed NWs with a non-ideal mechanical fixation at the NW/substrate interface. Analysis of the NWs with ideally fixed base resulted in experimentally measured Young's modulus of 155 +/- 20 GPa for ZB NWs, and 157 +/- 20 GPa for WZ NWs, respectively, which are in consistence with a theoretically predicted bulk value of 167 GPa. Thus, impacts of the crystal structure (WZ/ZB) and crystal defects on Young's modulus of GaP NWs were found to be negligible.
AB - Young's modulus of tapered mixed composition (zinc-blende with a high density of twins and wurtzite with a high density of stacking faults) gallium phosphide (GaP) nanowires (NWs) was investigated by atomic force microscopy. Experimental measurements were performed by obtaining bending profiles of as-grown inclined GaP NWs deformed by applying a constant force to a series of NW surface locations at various distances from the NW/substrate interface. Numerical modeling of experimental data on bending profiles was done by applying Euler-Bernoulli beam theory. Measurements of the nano-local stiffness at different distances from the NW/substrate interface revealed NWs with a non-ideal mechanical fixation at the NW/substrate interface. Analysis of the NWs with ideally fixed base resulted in experimentally measured Young's modulus of 155 +/- 20 GPa for ZB NWs, and 157 +/- 20 GPa for WZ NWs, respectively, which are in consistence with a theoretically predicted bulk value of 167 GPa. Thus, impacts of the crystal structure (WZ/ZB) and crystal defects on Young's modulus of GaP NWs were found to be negligible.
KW - GaP
KW - nanowire
KW - atomic force microscopy
KW - WZ
KW - ZB
KW - Young's modulus
KW - bending
KW - III-V NANOWIRES
KW - MECHANICAL-PROPERTIES
KW - GAAS NANOWIRES
KW - WURTZITE
KW - RESONANCE
KW - STRESS
KW - CELL
KW - WZ/ZB
KW - Young s modulus
UR - http://www.scopus.com/inward/record.url?scp=85109974421&partnerID=8YFLogxK
U2 - 10.1088/1361-6528/ac0ac7
DO - 10.1088/1361-6528/ac0ac7
M3 - Article
VL - 32
JO - Nanotechnology
JF - Nanotechnology
SN - 0957-4484
IS - 38
M1 - 385706
ER -
ID: 88891693