TY - JOUR
T1 - Strain Discontinuity, Avalanche, and Memory in Carbon Nanotube Serpentine Systems
AU - Muessnich, Lucas C. P. A. M.
AU - Chacham, Helio
AU - Soares, Jaqueline S.
AU - Barbosa Neto, Newton M.
AU - Shadmi, Nitzan
AU - Joselevich, Ernesto
AU - Cancado, Luiz Gustavo
AU - Jorio, Ado
N1 - This work was financed by CNPq (grant 552124/2011-7).
PY - 2015/9/9
Y1 - 2015/9/9
N2 - This work addresses the problem of how a nano-object adheres to a supporting media. The case of study are the serpentine-like structures of single-wall carbon nanotubes (SWNTs) grown on vicinal crystalline quartz. We develop in situ nanomanipulation and confocal Raman spectroscopy in such systems, and to explain the results, we propose a dynamical equation in which static friction is treated phenomenologically and implemented as cutoff for velocities, via Heaviside step function and an adhesion force tensor. We demonstrate that the strain profiles observed along the SWNTs are due to anisotropic adhesion, adhesion discontinuities, strain avalanches, and memory effects. The equation is general enough to make predictions for various one- and two-dimensional nanosystems adhered to a supporting media.
AB - This work addresses the problem of how a nano-object adheres to a supporting media. The case of study are the serpentine-like structures of single-wall carbon nanotubes (SWNTs) grown on vicinal crystalline quartz. We develop in situ nanomanipulation and confocal Raman spectroscopy in such systems, and to explain the results, we propose a dynamical equation in which static friction is treated phenomenologically and implemented as cutoff for velocities, via Heaviside step function and an adhesion force tensor. We demonstrate that the strain profiles observed along the SWNTs are due to anisotropic adhesion, adhesion discontinuities, strain avalanches, and memory effects. The equation is general enough to make predictions for various one- and two-dimensional nanosystems adhered to a supporting media.
UR - http://www.scopus.com/inward/record.url?scp=84941145552&partnerID=8YFLogxK
U2 - https://doi.org/10.1021/acs.nanolett.5b01982
DO - https://doi.org/10.1021/acs.nanolett.5b01982
M3 - مقالة
SN - 1530-6984
VL - 15
SP - 5899
EP - 5904
JO - Nano Letters
JF - Nano Letters
IS - 9
ER -