Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2022. №12
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DOI: https://doi.org/10.30898/1684-1719.2022.12.9

 

PECULIARITIES OF CHARGE TRANSFER UNDER COLD FIELD

EMISSION FROM CARBON NANOTUBES CATHODES

 

Z.Ya. Kosakovskaya 1, S.V. von Gratowski 1, V.V. Koledov 1, V.G. Shavrov 1,

A.M. Smolovich 1, A.P. Orlov 1, Jun-Ge Liang 2,3

 

1 Kotelnikov IRE RAS, 125009, Russia, Moscow, Mokhovaya str., 11, b.7

2 Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, 214122, China, Wuxi

3 School of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, China, Nanjing

 

The paper was received December 30, 2022.

 

Abstract. 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 (CVC), 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. 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.

Key words: carbon nanotubes (CNTs), carbon nanotubes (CNTs), cold field emission of electrons, Fowler-Nordheim law, current-voltage characteristic (CVC), pointed cathodes, negative differential conductivity, Van Hove singularity

Financing: This work was done in the framework of state task, partially supported by the Russian Foundation for Basic Research (RFBR), Grant № 20-07-01062\22.

Corresponding author: von Gratowski Svetlana Vjacheslavovna, svetlana.gratowski@yandex.ru   

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For citation:

Kosakovskaya Z.Ya., von Gratowski S.V., Koledov V.V., Shavrov V.G., Smolovich A.M., Orlov A.P., Jun-Ge Liang. Peculiarities of charge transfer under cold field emission from carbon nanotubes cathodes. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2022. №12. https://doi.org/10.30898/1684-1719.2022.12.9 (in Russian)