Coulomb blockade in field electron emission from carbon nanotubes

被引：7

作者：

Kleshch, Victor I. ^{[1
]}

Porshyn, Vitali ^{[2
]}

Serbun, Pavel ^{[2
]}

Orekhov, Anton S. ^{[1
,3
,4
]}

Ismagilov, Rinat R. ^{[1
]}

Malykhin, Sergey A. ^{[1
,5
,6
]}

Eremina, Valentina A. ^{[4
,7
]}

Obraztsov, Petr A. ^{[7
]}

Obraztsova, Elena D. ^{[4
,7
]}

Luetzenkirchen-Hecht, Dirk ^{[2
]}

机构：

[1] Lomonosov Moscow State Univ, Dept Phys, Moscow 119991, Russia

[2] Univ Wuppertal, Fac Math & Nat Sci, Dept Phys, D-42119 Wuppertal, Germany

[3] NRC Kurchatov Inst, Moscow 123182, Russia

[4] Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Region, Russia

[5] Univ Eastern Finland, Dept Math & Phys, Joensuu 80101, Finland

[6] RAS, Lebedev Phys Inst, Dept Solid State Phys, Moscow 119991, Russia

[7] RAS, Prokhorov Gen Phys Inst, Moscow 119991, Russia

来源：

APPLIED PHYSICS LETTERS | 2021年 / 118卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

POINT-SOURCE;

D O I：

10.1063/5.0039961

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the observation of Coulomb blockade in electron field emission (FE) from single-wall carbon nanotubes (SWCNTs), which is manifested as pronounced steps in the FE current-voltage curves and oscillatory variations in the energy distribution of emitted electrons. The appearance of the Coulomb blockade is explained by the formation of nanoscale protrusions at the apexes of SWCNTs due to the electric field-assisted surface diffusion of adsorbates and carbon adatoms. The proposed adsorbate-assisted FE mechanism is substantially different from the well-known resonant tunneling associated with discrete electronic states of adsorbed atoms. The simulations based on the Coulomb blockade theory are in excellent agreement with the experimental results. The SWCNT field emitters controlled by the Coulomb blockade effect are expected to be used to develop on-demand coherent single-electron sources for advanced vacuum nanoelectronic devices.

引用

页数：6

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