Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
7.4
5.3
Journals
Nanomaterials
Special Issues
Advanced Low Dimensional Nanomaterials for Field Emission: Theory, Synthesis/Fabrication, Characterization,...
share announcement

Advanced Low Dimensional Nanomaterials for Field Emission: Theory, Synthesis/Fabrication, Characterization, Applications

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

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 4009

Special Issue Editors

Prof. Dr. Jie Tang

E-Mail Website
Guest Editor
National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 3050047, Japan
Interests: field emission; electron source; low dimensional nanomaterials; graphene; energy storage application
Special Issues, Collections and Topics in MDPI journals
Dr. Shuai Tang

E-Mail Website
Co-Guest Editor
School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510006, China
Interests: field emission; electron source; in situ TEM technique

Special Issue Information

Dear Colleagues,

Field emission electron sources are widely used in applications including microscopy, spectroscopy, lithography, X-ray tubes, microwave devices, detectors and displays. Over the past several decades, nanomaterials including one-dimensional nanotube/nanowire/nanotip and two-dimensional nanosheet/nanoflake/nanowall have been studied and have shown novel field emission mechanisms as well as good field emission characteristics. Currently, the nanomaterial-based field emission devices are attracting a great deal of attention.

The present Special Issue of Nanomaterials is aimed at presenting the current state of the art in the use of nanomaterials for field emission. Original articles and reviews are both welcomed.

The topics for submission are:

  • Field emission theory of nanomaterials;
  • Synthesis/fabrication of nanomaterials for field emission;
  • Field emission characteristics of nanomaterials;
  • Field emission applications of nanomaterials;
  • Coupled electron emission: thermal-field emission, photo-field emission, etc.

Prof. Dr. Jie Tang
Dr. Shuai Tang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • field emission
  • nanowire
  • nanotube
  • nanotip
  • nanoneedle
  • nanosheet
  • nanoflake
  • nanowall
  • graphene
  • electron source

Published Papers (4 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

11 pages, 3158 KiB  
Article
Aluminum Nitride Ultraviolet Light-Emitting Device Excited via Carbon Nanotube Field-Emission Electron Beam
by Yangcheng Yu, Dong Han, Haiyuan Wei, Ziying Tang, Lei Luo, Tianzeng Hong, Yan Shen, Huying Zheng, Yaqi Wang, Runchen Wang, Hai Zhu and Shaozhi Deng
Nanomaterials 2023, 13(6), 1067; https://doi.org/10.3390/nano13061067 - 16 Mar 2023
Cited by 6 | Viewed by 1431
Abstract
With the progress of wide bandgap semiconductors, compact solid-state light-emitting devices for the ultraviolet wavelength region are of considerable technological interest as alternatives to conventional ultraviolet lamps in recent years. Here, the potential of aluminum nitride (AlN) as an ultraviolet luminescent material was [...] Read more.
With the progress of wide bandgap semiconductors, compact solid-state light-emitting devices for the ultraviolet wavelength region are of considerable technological interest as alternatives to conventional ultraviolet lamps in recent years. Here, the potential of aluminum nitride (AlN) as an ultraviolet luminescent material was studied. An ultraviolet light-emitting device, equipped with a carbon nanotube (CNT) array as the field-emission excitation source and AlN thin film as cathodoluminescent material, was fabricated. In operation, square high-voltage pulses with a 100 Hz repetition frequency and a 10% duty ratio were applied to the anode. The output spectra reveal a dominant ultraviolet emission at 330 nm with a short-wavelength shoulder at 285 nm, which increases with the anode driving voltage. This work has explored the potential of AlN thin film as a cathodoluminescent material and provides a platform for investigating other ultrawide bandgap (UWBG) semiconductors. Furthermore, while using AlN thin film and a carbon nanotube array as electrodes, this ultraviolet cathodoluminescent device can be more compact and versatile than conventional lamps. It is anticipated to be useful in a variety of applications such as photochemistry, biotechnology and optoelectronics devices. Full article
(This article belongs to the Special Issue Advanced Low Dimensional Nanomaterials for Field Emission: Theory, Synthesis/Fabrication, Characterization, Applications)
►▼ Show Figures

Figure 1

12 pages, 4445 KiB  
Article
A Core-Shell MWCNT-Pt Nanowire Electron Source with Anomalously Long-Term Stable Field Emission
by Wenqi Zhang, Peidong Chao, Donglei Chen, Zhan Yang and Lixin Dong
Nanomaterials 2023, 13(3), 532; https://doi.org/10.3390/nano13030532 - 28 Jan 2023
Cited by 1 | Viewed by 1190
Abstract
A hybrid core-shell structured nanowire is proposed for a long-term stable electron source based on an isolated platinum/multi-walled carbon nanotube (Pt/MWCNT). This hybrid nanowire is prepared by growing a Pt shell on a metallic MWCNT through a field-emission-induced deposition (FEID) method. An in [...] Read more.
A hybrid core-shell structured nanowire is proposed for a long-term stable electron source based on an isolated platinum/multi-walled carbon nanotube (Pt/MWCNT). This hybrid nanowire is prepared by growing a Pt shell on a metallic MWCNT through a field-emission-induced deposition (FEID) method. An in situ field emission (FE) platform was constructed inside a scanning electron microscope (SEM) equipped with two nanorobotic manipulators (NRMs) for the preparation and testing of the hybrid nanowire. An in situ fatigue test was conducted with high current intensity (500 nA) to show the influence of the Pt shell. Compared with the pristine bare MWCNT, our hybrid-nanowire-based electron source has a lifetime of hundreds of times longer and can work continuously for up to 48 h under relatively high pressure (3.6×10-3 Pa) without having an apparent change in its structure or emission currents, demonstrating good stability and tolerance to poor working conditions. The anomalous long-term stability is attributed mainly to the shielding of oxygen by Pt from the carbon shells and less heating due to the work function lowering by Pt. Full article
(This article belongs to the Special Issue Advanced Low Dimensional Nanomaterials for Field Emission: Theory, Synthesis/Fabrication, Characterization, Applications)
►▼ Show Figures

Figure 1

13 pages, 5903 KiB  
Article
High Crystallinity Vertical Few-Layer Graphene Grown Using Template Method Assisted ICPCVD Approach
by Tianzeng Hong, Runze Zhan, Yu Zhang and Shaozhi Deng
Nanomaterials 2022, 12(21), 3746; https://doi.org/10.3390/nano12213746 - 25 Oct 2022
Cited by 2 | Viewed by 1302
Abstract
Controllable synthesis of high crystallinity, low defects vertical few-layer graphene (VFLG) is significant for its application in electron emission, sensor or energy storage, etc. In this paper, a template method was introduced to grow high crystallinity VFLG (HCVFLG). A copper mask acted as [...] Read more.
Controllable synthesis of high crystallinity, low defects vertical few-layer graphene (VFLG) is significant for its application in electron emission, sensor or energy storage, etc. In this paper, a template method was introduced to grow high crystallinity VFLG (HCVFLG). A copper mask acted as a template which has two effects in the high-density plasma enhanced deposition which are protecting VFLG from ion etching and creating a molecular gas flow to assist efficient growth. Raman and TEM results confirmed the improved crystallinity of VFLG with the assistance of a copper mask. As a field emitter, the HCVFLG has a large field emission current and a low turn-on field. The maximum field emission current of a single HCVFLG sheet reaches 93 μA which is two orders of magnitude higher than VFLG grown without a mask. The maximum current density of HCVFLG film reached 67.15 mA/cm2 and is 2.6 times of VFLG grown without a mask. The vacuum breakdown mechanism of HCVFLG was contacted interface damage resulting in VFLG detaching from the substrate. This work provides a practical strategy for high-quality VFLG controllable synthesis and provides a simple method to realize the pattern growth of VFLG. Full article
(This article belongs to the Special Issue Advanced Low Dimensional Nanomaterials for Field Emission: Theory, Synthesis/Fabrication, Characterization, Applications)
►▼ Show Figures

Figure 1

9 pages, 1458 KiB  
Article
Influence of NiO ALD Coatings on the Field Emission Characteristic of CNT Arrays
by Maksim A. Chumak, Leonid A. Filatov, Ilya S. Ezhov, Anatoly G. Kolosko, Sergey V. Filippov, Eugeni O. Popov and Maxim Yu. Maximov
Nanomaterials 2022, 12(19), 3463; https://doi.org/10.3390/nano12193463 - 4 Oct 2022
Cited by 1 | Viewed by 1281
Abstract
The paper presents a study of a large-area field emitter based on a composite of vertically aligned carbon nanotubes covered with a continuous and conformal layer of nickel oxide by the atomic layer deposition method. The arrays of carbon nanotubes were grown by [...] Read more.
The paper presents a study of a large-area field emitter based on a composite of vertically aligned carbon nanotubes covered with a continuous and conformal layer of nickel oxide by the atomic layer deposition method. The arrays of carbon nanotubes were grown by direct current plasma-enhanced chemical vapor deposition on a pure Si substrate using a nickel oxide catalyst which was also deposited by atomic layer deposition. The emission characteristics of an array of pure vertically oriented carbon nanotubes with a structure identical in morphology, covered with a layer of thin nickel oxide, are compared using the data from a unique computerized field emission projector. The deposition of an oxide coating favorably affected the emission current fluctuations, reducing them from 40% to 15% for a pristine carbon nanotube and carbon nanotube/nickel oxide, respectively. However, the 7.5 nm nickel oxide layer coating leads to an increase in the turn-on field from 6.2 to 9.7 V/µm. Full article
(This article belongs to the Special Issue Advanced Low Dimensional Nanomaterials for Field Emission: Theory, Synthesis/Fabrication, Characterization, Applications)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-4
Back to TopTop