Thermoelectric Properties of an Array of Carbon Nanotubes under Uniaxial Compression after Annealing
M. M. Nishchenko$^{1}$, H. Yu. Mykhailova$^{1}$, B. V. Kovalchuk$^{1}$, I. M. Sydorchenko$^{1}$, V. V. Anikeev$^{1}$, M. Ya. Shevchenko$^{1}$, V. M. Poroshyn$^{2}$, G. P. Prykhodko$^{3}$
$^{1}$G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{2}$Institute of Physics, NAS of Ukraine, 46 Nauky Ave., 03028 Kyiv, Ukraine
$^{3}$O.O. Chuiko Institute of Surface Chemistry, NAS of Ukraine, 17 General Naumov Str., 03164 Kyiv, Ukraine
Received: 27.11.2017. Download: PDF
The influence of annealing in a vacuum up to $10^5$ Pa in temperature range 300–1150С on the electrical conductivity, thermopower, and elastic characteristics of the multiwall carbon nanotubes (MWCNT) array is studied. As shown, in case of uniaxial deformation, the oriented packing of MWCNT occurs that leads to decreasing of the Seebeck coefficient up to 15%, and the annealing at a temperature under 950°C contributes to its reduction by 5% for all compression ratios.
Key words: carbon nanotubes, high-temperature annealing, electrical conductivity, thermopower, Seebeck coefficient.
URL: http://mfint.imp.kiev.ua/en/abstract/v40/i02/0169.html
DOI: https://doi.org/10.15407/mfint.40.02.0169
PACS: 62.23.Pq, 62.25.-g, 72.20.Pa, 72.80.Rj, 73.50.Lw, 81.07.Oj, 81.40.Vw
Citation: M. M. Nishchenko, H. Yu. Mykhailova, B. V. Kovalchuk, I. M. Sydorchenko, V. V. Anikeev, M. Ya. Shevchenko, V. M. Poroshyn, and G. P. Prykhodko, Thermoelectric Properties of an Array of Carbon Nanotubes under Uniaxial Compression after Annealing, Metallofiz. Noveishie Tekhnol., 40, No. 2: 169—182 (2018) (in Russian)