Open AccessEffect of high pressure on the thermoelectrical properties of single-walled and double-walled carbon nanotubes
Author(s) -
D. N. Sokolovsky,
A. V. Naymushin,
A. G. Andreeva,
Yu.V. Volkova
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1556/1/012051
Subject(s) - carbon nanotube , materials science , seebeck coefficient , electrical resistance and conductance , mechanical properties of carbon nanotubes , phase (matter) , semiconductor , electrical resistivity and conductivity , thermoelectric effect , carbon fibers , nanotechnology , optical properties of carbon nanotubes , composite material , atmospheric temperature range , diamond , chemical engineering , nanotube , optoelectronics , thermodynamics , thermal conductivity , chemistry , composite number , organic chemistry , physics , engineering , electrical engineering
The effect of high pressure on the Seebeck coefficient and temperature dependences of the electrical resistance of single-wall and double-walled carbon nanotubes was studied in order to detect phase transformations occurring in carbon nanotubes in the pressure range 4–46 GPa. Diamond anvil cells with conductive synthetic diamonds were used to create high pressures. We observed a number of features associated with the structure changes of nanotubes. Temperature dependences of the electrical resistance of single and double-walled carbon nanotubes have the form characteristic of nondegenerate semiconductors. Analysis of results indicates the destruction of the structure of carbon nanotubes at high pressure.