Journal
NANOMATERIALS
Volume 12, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/nano12142360
Keywords
non-carbon nanotubes; numerical simulation; force constants; rigidity; elastic moduli
Categories
Funding
- FEDER funds through the program COMPETE-Programa Operacional Factores de Competitividade
- FCT, Fundacao para a Ciencia e a Tecnologia [UIDB/00285/2020, LA/P/0112/2020]
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This study focuses on the elastic properties of non-carbon nanotubes based on compounds of the 13th group of the periodic table. The research reveals that these nanotubes are more suitable candidates than carbon nanotubes for building novel nano-devices, and proposes a robust methodology to calculate the surface elastic moduli of phosphide nanotubes.
After a large-scale investigation into carbon nanotubes, significant research efforts have been devoted to discovering and synthesizing other nanotubes formed by chemical elements other than carbon. Among them, non-carbon nanotubes based on compounds of the elements of the 13th group of the periodic table and phosphorus. These inorganic nanotubes have proved to be more suitable candidates than carbon nanotubes for the construction of novel electronic and optical-electronic nano-devices. For this reason, until recently, mainly the structural and electrical properties of phosphide nanotubes were investigated, and studies to understand their mechanical behavior are infrequent. In the present work, the elastic properties of single-walled boron phosphide, aluminum phosphide, gallium phosphide and indium phosphide nanotubes were numerically evaluated using a nanoscale continuum modelling (also called molecular structural mechanics) approach. The force field constants required to assess the input parameters for numerical simulations were calculated for boron phosphide, aluminum phosphide, gallium phosphide and indium phosphide nanostructures using two different methods. The influence of input parameters on the elastic properties evaluated by numerical simulation was studied. A robust methodology to calculate the surface elastic moduli of phosphide nanotubes is proposed.
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