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Nanomaterials
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Electronic Properties of 2D/1D Materials and Their Junctions
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Electronic Properties of 2D/1D Materials and Their Junctions

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "2D and Carbon Nanomaterials".

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 3018

Special Issue Editor

Prof. Dr. Vasili Perebeinos

E-Mail Website
Guest Editor
Department of Electrical Engineering, School of Engineering and Applied Sciences, University at Buffalo, 230 I Davis Hall, Buffalo, NY 14260, USA
Interests: graphene; carbon nanotubes; 2D materials; electrical; optical; thermal properties
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The advancement of nanoelectronics and nanophotonics critically depends on materials development. There are stringent requirements for the electronic material properties and junctions between the materials constituting electronic circuits. The current Special Issue solicits contributions on emerging nanomaterials for future nanoelectronic and nanophotonic devices with enhanced functionalities.

The experimental and theoretical topics include but are not limited to:

  • Two-dimensional materials and van der Waals heterostructures;
  • One-dimensional nanotubes and nanorods;
  • Wide-bandgap and emerging semiconductor materials and devices;
  • Plasmonic heterostructures;
  • Materials for quantum phononics.

Manuscripts on interfacial properties determining electrical contact resistance, interfacial thermal conductance, and interlayer excitons emerging at the junctions of low-dimensional materials are of particular interest.

Prof. Dr. Vasili Perebeinos
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

  • low-dimensional materials
  • graphene
  • carbon nanotubes
  • transition metal dichalcogenides
  • electrical contact resistance
  • interfacial thermal conductance
  • interlayer excitons

Published Papers (3 papers)

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Research

9 pages, 1143 KiB  
Article
Metal Contact Induced Unconventional Field Effect in Metallic Carbon Nanotubes
by Georgy Fedorov, Roohollah Hafizi, Vyacheslav Semenenko and Vasili Perebeinos
Nanomaterials 2023, 13(11), 1774; https://doi.org/10.3390/nano13111774 - 31 May 2023
Cited by 1 | Viewed by 1455
Abstract
One-dimensional carbon nanotubes (CNTs) are promising for future nanoelectronics and optoelectronics, and an understanding of electrical contacts is essential for developing these technologies. Although significant efforts have been made in this direction, the quantitative behavior of electrical contacts remains poorly understood. Here, we [...] Read more.
One-dimensional carbon nanotubes (CNTs) are promising for future nanoelectronics and optoelectronics, and an understanding of electrical contacts is essential for developing these technologies. Although significant efforts have been made in this direction, the quantitative behavior of electrical contacts remains poorly understood. Here, we investigate the effect of metal deformations on the gate voltage dependence of the conductance of metallic armchair and zigzag CNT field effect transistors (FETs). We employ density functional theory calculations of deformed CNTs under metal contacts to demonstrate that the current-voltage characteristics of the FET devices are qualitatively different from those expected for metallic CNT. We predict that, in the case of armchair CNT, the gate-voltage dependence of the conductance shows an ON/OFF ratio of about a factor of two, nearly independent of temperature. We attribute the simulated behavior to modification of the band structure under the metals caused by deformation. Our comprehensive model predicts a distinct feature of conductance modulation in armchair CNTFETs induced by the deformation of the CNT band structure. At the same time, the deformation in zigzag metallic CNTs leads to a band crossing but not to a bandgap opening. Full article
(This article belongs to the Special Issue Electronic Properties of 2D/1D Materials and Their Junctions)
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15 pages, 595 KiB  
Article
TAO-DFT with the Polarizable Continuum Model
by Sonai Seenithurai and Jeng-Da Chai
Nanomaterials 2023, 13(10), 1593; https://doi.org/10.3390/nano13101593 - 10 May 2023
Cited by 3 | Viewed by 1738
Abstract
For the ground-state properties of gas-phase nanomolecules with multi-reference character, thermally assisted occupation (TAO) density functional theory (DFT) has recently been found to outperform the widely used Kohn–Sham DFT when traditional exchange-correlation energy functionals are employed. Aiming to explore solvation effects on the [...] Read more.
For the ground-state properties of gas-phase nanomolecules with multi-reference character, thermally assisted occupation (TAO) density functional theory (DFT) has recently been found to outperform the widely used Kohn–Sham DFT when traditional exchange-correlation energy functionals are employed. Aiming to explore solvation effects on the ground-state properties of nanomolecules with multi-reference character at a minimal computational cost, we combined TAO-DFT with the PCM (polarizable continuum model). In order to show its usefulness, TAO-DFT-based PCM (TAO-PCM) was used to predict the electronic properties of linear acenes in three different solvents (toluene, chlorobenzene, and water). According to TAO-PCM, in the presence of these solvents, the smaller acenes should have nonradical character, and the larger ones should have increasing polyradical character, revealing striking similarities to the past findings in the gas phase. Full article
(This article belongs to the Special Issue Electronic Properties of 2D/1D Materials and Their Junctions)
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12 pages, 3934 KiB  
Article
Role of Hydrogen in Ethylene-Based Synthesis of Single-Walled Carbon Nanotubes
by Alisa R. Bogdanova, Dmitry V. Krasnikov, Eldar M. Khabushev, Javier A. Ramirez B., Yakov E. Matyushkin and Albert G. Nasibulin
Nanomaterials 2023, 13(9), 1504; https://doi.org/10.3390/nano13091504 - 28 Apr 2023
Cited by 4 | Viewed by 1558
Abstract
We examined the effect of hydrogen on the growth of single-walled carbon nanotubes in the aerosol (a specific case of the floating catalyst) chemical vapor deposition process using ethylene as a carbon source and ferrocene as a precursor for a Fe-based catalyst. With [...] Read more.
We examined the effect of hydrogen on the growth of single-walled carbon nanotubes in the aerosol (a specific case of the floating catalyst) chemical vapor deposition process using ethylene as a carbon source and ferrocene as a precursor for a Fe-based catalyst. With a comprehensive set of physical methods (UV-vis-NIR and Raman spectroscopies, transmission electron microscopy, scanning electron microscopy, differential mobility analysis, and four-probe sheet resistance measurements), we showed hydrogen to inhibit ethylene pyrolysis extending the window of synthesis parameters. Moreover, the detailed study at different temperatures allowed us to distinguish three different regimes for the hydrogen effect: pyrolysis suppression at low concentrations (I) followed by surface cleaning/activation promotion (II), and surface blockage/nanotube etching (III) at the highest concentrations. We believe that such a detailed study will help to reveal the complex role of hydrogen and contribute toward the synthesis of single-walled carbon nanotubes with detailed characteristics. Full article
(This article belongs to the Special Issue Electronic Properties of 2D/1D Materials and Their Junctions)
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