The Research Related to Nanomaterial Cold Cathode II

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: 20 April 2024 | Viewed by 1054

Special Issue Editor

School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510006, China
Interests: nanomaterial cold cathode; cold cathode X-ray source; optoelectronic detector
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanomaterial cold cathodes have potential applications in various vacuum microelectronic devices, including in microwave tubes, X-ray sources, detectors, and energy conversion devices. This Special Issue aims to encourage researchers to submit reviews or original articles related to research into field emissions from 1D or 2D nanomaterials and their applications as cold cathode in devices. The scope of this Special Issue includes: 1) the preparation of 1D and 2D nanomaterials for field emission cold cathode application; 2) the field electron emission properties of nanomaterials; 3) the theory of field electron emissions from nanomaterials; 4) the application of nanomaterials as cold cathodes in vacuum nanoelectronic or optoelectronic devices.

Prof. Dr. Jun Chen
Guest Editor

Manuscript Submission Information

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Keywords

  • cold cathode
  • field emission
  • one-dimensional nanomaterials
  • nanowires
  • carbon nanotubes
  • 2D materials
  • graphene
  • vacuum nanoelectronic devices

Published Papers (1 paper)

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Review

28 pages, 6617 KiB  
Review
Cold Cathodes with Two-Dimensional van der Waals Materials
by Yicong Chen, Jun Chen and Zhibing Li
Nanomaterials 2023, 13(17), 2437; https://doi.org/10.3390/nano13172437 - 28 Aug 2023
Cited by 1 | Viewed by 703
Abstract
Two-dimensional van der Waals materials could be used as electron emitters alone or stacked in a heterostructure. Many significant phenomena of two-dimensional van der Waals field emitters have been observed and predicted since the landmark discovery of graphene. Due to the wide variety [...] Read more.
Two-dimensional van der Waals materials could be used as electron emitters alone or stacked in a heterostructure. Many significant phenomena of two-dimensional van der Waals field emitters have been observed and predicted since the landmark discovery of graphene. Due to the wide variety of heterostructures that integrate an atomic monolayer or multilayers with insulator nanofilms or metallic cathodes by van der Waals force, the diversity of van der Waals materials is large to be chosen from, which are appealing for further investigation. Until now, increasing the efficiency, stability, and uniformity in electron emission of cold cathodes with two-dimensional materials is still of interest in research. Some novel behaviors in electron emission, such as coherence and directionality, have been revealed by the theoretical study down to the atomic scale and could lead to innovative applications. Although intensive emission in the direction normal to two-dimensional emitters has been observed in experiments, the theoretical mechanism is still incomplete. In this paper, we will review some late progresses related to the cold cathodes with two-dimensional van der Waals materials, both in experiments and in the theoretical study, emphasizing the phenomena which are absent in the conventional cold cathodes. The review will cover the fabrication of several kinds of emitter structures for field emission applications, the state of the art of their field emission properties and the existing field emission model. In the end, some perspectives on their future research trend will also be given. Full article
(This article belongs to the Special Issue The Research Related to Nanomaterial Cold Cathode II)
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