Magnetoresistance and electrical resistivity of N‐doped multi‐walled carbon nanotubes at low temperatures

Ovsienko, I. V.; Len, T. A.; Matsuy, L. Yu.; Prylutskyy, Yu. І.; Berkutov, I. B.; Andrievskii, V. V.; Komnik, Yu. F.; Mirzoiev, I. G.; Grechnev, G. E.; Kolesnichenko, Yu. A.; Hayn, R.; Scharff, P.

doi:10.1002/pssb.201451657

Cited by 18 publications

(8 citation statements)

References 34 publications

(38 reference statements)

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“…Thus, according to our research the functionalization of carbon nanotube with the proposed method results in a slight decrease in the value of the Fermi level energy. This result differs significantly for instance from previously published results . It has been shown that the doping of carbon nanotube with nitrogen causing a significant increase (almost 10 times) the value of the Fermi energy level.…”

Section: Resultscontrasting

confidence: 96%

“…The properties of the carbon nanotubes, associated with charge transfer, were investigated, their kinetic properties can be described in the model of two‐dimensional conduction . For such weakly ordered systems, which are multiwall carbon nanotube at low temperatures, there are quantum effects of weak localization and interaction of charge carriers . One of the characteristic features of these effects is negative magnetoresistance, the absolute value of which increases with decreasing temperature.…”

Section: Resultsmentioning

confidence: 99%

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Magnetoresistance of functionalized carbon nanotubes

Ovsiienko

Len

Matzui

et al. 2016

Materialwissenschaft Werkst

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In present work a novel method for the functionalization of carbon nanotubes is proposed. The magnetoresistance of carbon nanotubes specimens in temperature range from 1.6 K up to 85 K and in magnetic field up to 5 T was investigated. It was shown that the proposed functionalization method does not cause any new defects in structure of carbon nanotubes and does not essentially influence the resistivity of nanotubes. It is revealed the appearance of the charge carriers weak localization and interactions effects for as‐prepared and functionalized carbon nanotubes. On the basis of the experimental data, the explicit type of temperature dependence of wave function phase relaxation time and Fermi‐level energy value for as‐prepared and functionalized carbon nanotube are established.

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Section: Resultscontrasting

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Magnetoresistance of functionalized carbon nanotubes

Ovsiienko

Len

Matzui

et al. 2016

Materialwissenschaft Werkst

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show abstract

“…Розрахунки геометричної оптимізації проведено із використанням теорії функціоналу густини. Бор та азот, як домішки, було вибрано з урахуванням літературних даних, де показано, що ці домішки підсилюють адсорбційні властивості вуглецевих наноструктур щодо деяких видів молекул [25][26][27].…”

Section: вступunclassified

PROSPECTS FOR THE USE OF CARBON NANOTUBES AS RESISTIVITY SENSORS OF CrO42- MOLECULAR ANIONS

Борисюк¹,

Nedilko²,

Хижний³

2018

SEMST

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“…Together with undoped carbon materials, the B- or N-doped CNTs and graphene were considered in calculations. Such kind of doping can substantially change the physical properties of carbon nanostructures (see e.g., [15–17]). As it was found for several kinds of molecules, the doping with nonisovalent impurities B or N can enhance adsorption capabilities of carbon nanostructures [18–20].…”

Section: Introductionmentioning

confidence: 99%

Ab Initio Computational Study of Chromate Molecular Anion Adsorption on the Surfaces of Pristine and B- or N-Doped Carbon Nanotubes and Graphene

et al. 2017

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Density functional theory (DFT) computations of the electronic structures of undoped, B- and N-doped CNT(3,3), CNT(5,5) carbon nanotubes, and graphene with adsorbed chromate anions CrO4 2− were performed within molecular cluster approach. Relaxed geometries, binding energies, charge differences of the adsorbed CrO4 2− anions, and electronic wave function contour plots were calculated using B3LYP hybrid exchange-correlation functional. Oscillator strengths of electronic transitions of CrO4 2− anions adsorbed on the surfaces of studied carbon nanostructures were calculated by the TD-DFT method. Calculations reveal covalent bonding between the anion and the adsorbents in all studied adsorption configurations. For all studied types of adsorbent structures, doping with N strengthens chemical bonding with CrO4 2− anions, providing a ~2-eV increase in binding energies comparatively to adsorption of the anion on undoped adsorbents. Additional electronic transitions of CrO4 2− anions appear in the orange-green spectral region when the anions are adsorbed on the N-doped low-diameter carbon nanotubes CNT(3,3) and CNT(5,5).

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Magnetoresistance and electrical resistivity of N‐doped multi‐walled carbon nanotubes at low temperatures

Cited by 18 publications

References 34 publications

Magnetoresistance of functionalized carbon nanotubes

Magnetoresistance of functionalized carbon nanotubes

PROSPECTS FOR THE USE OF CARBON NANOTUBES AS RESISTIVITY SENSORS OF CrO42- MOLECULAR ANIONS

Ab Initio Computational Study of Chromate Molecular Anion Adsorption on the Surfaces of Pristine and B- or N-Doped Carbon Nanotubes and Graphene

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