Single-Electron Transport and Detection of Graphene Quantum Dots

Release time:2023-02-28

Impact Factor:5.719

DOI number:10.3390/nano13050889

Journal:Nanomaterials

Place of Publication:Switzerland

Key Words:graphene; nanodevices; single-electron transistor; electrometer

Abstract:The integrated structure of graphene single-electron transistor and nanostrip electrometer was prepared using the semiconductor fabrication process. Through the electrical performance test of the large sample number, qualified devices were selected from low-yield samples, which exhibited an obvious Coulomb blockade effect. The results show that the device can deplete the electrons in the quantum dot structure at low temperatures, thus, accurately controlling the number of electrons captured by the quantum dot. At the same time, the nanostrip electrometer coupled with the quantum dot can be used to detect the quantum dot signal, that is, the change in the number of electrons in the quantum dot, because of its quantized conductivity characteristics.

Co-author:Jinggao Sui

First Author:Xinxing Li

Indexed by:Journal paper

Correspondence Author:Jingyue Fang

Discipline:Natural Science

First-Level Discipline:Physics

Document Type:J

Volume:13

Issue:5

Page Number:889-901

Translation or Not:no

Date of Publication:2023-02-27

Included Journals:SCI

Links to published journals:https://www.mdpi.com/2079-4991/13/5/889