Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Structural Inhomogeneities and Nonlinear Phenomena in Charge Transfer under Cold Field Emission in Individual Closed Carbon Nanotubes

Svetlana Vjacheslavovna Von Gratowski
* ORCID logo ,
Zoya Kosakowski
,
Victor Victorovich Koledov
,
Vladimir Shavrov
,
Anatoliy Smolovich
ORCID logo ,
Andrey Orlov
ORCID logo ,
Cong Wang
ORCID logo ,
Jun-Ge Liang
Version 1 : Received: 27 July 2023 / Approved: 28 July 2023 / Online: 28 July 2023 (14:02:29 CEST)

A peer-reviewed article of this Preprint also exists.

von Gratowski, S.V.; Kosakowski, Z.Y.; Koledov, V.V.; Shavrov, V.G.; Smolovich, A.M.; Orlov, A.P.; Denisjuk, R.N.; Wang, C.; Liang, J. Structural Inhomogeneities and Nonlinear Phenomena in Charge Transfer under Cold Field Emission in Individual Closed Carbon Nanotubes. Micro 2023, 3, 941-954. von Gratowski, S.V.; Kosakowski, Z.Y.; Koledov, V.V.; Shavrov, V.G.; Smolovich, A.M.; Orlov, A.P.; Denisjuk, R.N.; Wang, C.; Liang, J. Structural Inhomogeneities and Nonlinear Phenomena in Charge Transfer under Cold Field Emission in Individual Closed Carbon Nanotubes. Micro 2023, 3, 941-954.

Abstract

The structure and phenomena arising from charge transfer in cold field emission modus in a single closed carbon nanotube under cold field emission conditions were studied. By studying microphotographs in various microscopes - AFM, SEM, TEM it was found inhomogeneities in the form of two types of superlattices. The conductivity of the emitter section of a nanodiode circuit with an emitter made of an individual closed carbon nanotube (CNT) and arrays of closed CNTs was studied. High values of cold field emission were observed, as well as nonlinearity and anomalies of the current-voltage characteristic (I-V characteristics), which manifested themselves in the form of peaks at low and high current values. Peaks in the CVC have distinct areas of negative differential conductivity. It is argued, that the anomalously high currents in the I–V characteristics of cold field emission of electrons from a nanoemitter made of closed CNTs can be associated with a sharp increase in the density of electron states at energies near the van Hove singularity.

Keywords

carbon nanotubes (CNTs); cold field emission of electrons; Fowler-Nordheim law; current-voltage characteristic (CVC); pointed cathodes; negative differential conductivity; van Hove singularity; superlattice

Subject

Physical Sciences, Condensed Matter Physics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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