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Nanomaterials
Special Issues
Carbon-Based Multifunctional Nanomaterials: Synthesis, Properties and Application
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Special Issue "Carbon-Based Multifunctional Nanomaterials: Synthesis, Properties and Application"

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

Deadline for manuscript submissions: 20 October 2023 | Viewed by 1588

Special Issue Editors

Prof. Dr. Wei Feng

E-Mail Website
Guest Editor
Advanced Polymer Materials Institute, Tianjin University, Tianjin, China
Interests: photo-responsive organic molecules or their derivatives; thermal-conductive and high-strength carbon-based composites; two-dimensional fluorinated carbon materials or polymers
Dr. Huitao Yu
E-Mail Website
Guest Editor Assistant
School of Materials Science and Engineering, Tianjin University, Tianjin, China
Interests: functional composites

Special Issue Information

Dear Colleagues,

Carbon is known to form distinct solid-state allotropes with diverse structures and properties, such as sp2-bonded graphite and sp3-bonded diamond. Novel carbon nanomaterials composed entirely of sp2-hybridized carbon atoms have been developed in dimensionalities ranging from zero-dimensional (0D) fullerenes and one-dimensional (1D) carbon nanotubes (CNTs) to two-dimensional (2D) graphene in past decades. Generally, the atomic structures and interfacial interactions of carbon nanomaterials with materials in other phases has an important influence on the properties of the carbon nanomaterials. Therefore, the design and functionalization of carbon nanomaterials from a nanoscale perspective has become a popular strategy to achieve desirable properties for particular applications. In addition, functional carbon nanomaterials with nanoscale dimensions exhibit different physical and chemical properties, including chemical stability, good thermal conductivity, good mechanical properties, super electroconductivity and improved optical properties. Since they were first reported, many groups have been very actively involved in the study and further development of carbon-based functional nanomaterials and their potential applications for many years.

Prof. Dr. Wei Feng
Guest Editor

Dr. Huitao Yu
Guest Editor Assistant

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 2600 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

  • carbon-based nanomaterials
  • multifunctional composites
  • theoretical calculation
  • processing and forming of carbon-based materials
  • carbon-based thermal conductive composites
  • carbon-based energy composites
  • carbon-based structural materials

Published Papers (2 papers)

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Article
Dopamine-Mediated Graphene Bridging Hexagonal Boron Nitride for Large-Scale Composite Films with Enhanced Thermal Conductivity and Electrical Insulation
by
Shikun Li
,
Yutan Shen
,
Xiao Jia
,
Min Xu
,
Ruoyu Zong
,
Guohua Liu
,
Bin Liu
and
Xiulan Huai
Nanomaterials 2023, 13(7), 1210; https://doi.org/10.3390/nano13071210 - 29 Mar 2023
Viewed by 670
Abstract
Heat accumulation generated from confined space poses a threat to the service reliability and lifetime of electronic devices. To quickly remove the excess heat from the hot spot, it is highly desirable to enhance the heat dissipation in a specific direction. Herein, we [...] Read more.
Heat accumulation generated from confined space poses a threat to the service reliability and lifetime of electronic devices. To quickly remove the excess heat from the hot spot, it is highly desirable to enhance the heat dissipation in a specific direction. Herein, we report a facile route to fabricate the large-scale composite film with enhanced thermal conductivity and electrical insulation. The well-stacked composite films were constructed by the assembly of polydopamine (PDA)-modified graphene nanosheets (GNSPDA) and hexagonal boron nitride (BNPDA), as well as bacterial cellulose (BC). The introduction of the PDA layer greatly improves the interface compatibility between hybrid fillers and BC matrix, and the presence of GNSPDA-bridging significantly increases the probability of effective contact with BNPDA fillers, which is beneficial to form a denser and complete “BN-GNS-BN” heat conduction pathway and tight filler–matrix network, as supported by the Foygel model fitting and numerical simulation. The resulting BC/BNPDA/GNSPDA film shows the thermal conductivity and tensile strength of 34.9 W·m−1·K−1 and 30.9 MPa, which separately increases to 161% and 155% relative to the BC/BNPDA film. It was found that the low electrically conductive and high thermal conductive properties can be well balanced by tuning the mass ratio of GNSPDA at 5 wt%, and the electrical conductivity caused by GNSPDA can be effectively blocked by the BNPDA filler network, giving the low electrical conductivity of 1.8 × 10−10 S·cm−1. Meanwhile, the BC/BNPDA/GNSPDA composite films effectively transfer the heat and diminish the hot-spot temperature in cooling LED chip module application. Thus, the present study may pave the way to promoting the industrialization of scalable thermal management devices. Full article
(This article belongs to the Special Issue Carbon-Based Multifunctional Nanomaterials: Synthesis, Properties and Application)
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Article
The Effect of C60 and Pentacene Adsorbates on the Electrical Properties of CVD Graphene on SiO2
by
Jacopo Oswald
,
Davide Beretta
,
Michael Stiefel
,
Roman Furrer
,
Dominique Vuillaume
and
Michel Calame
Nanomaterials 2023, 13(6), 1134; https://doi.org/10.3390/nano13061134 - 22 Mar 2023
Viewed by 758
Abstract
Graphene is an excellent 2D material for vertical organic transistors electrodes due to its weak electrostatic screening and field-tunable work function, in addition to its high conductivity, flexibility and optical transparency. Nevertheless, the interaction between graphene and other carbon-based materials, including small organic [...] Read more.
Graphene is an excellent 2D material for vertical organic transistors electrodes due to its weak electrostatic screening and field-tunable work function, in addition to its high conductivity, flexibility and optical transparency. Nevertheless, the interaction between graphene and other carbon-based materials, including small organic molecules, can affect the graphene electrical properties and therefore, the device performances. This work investigates the effects of thermally evaporated C60 (n-type) and Pentacene (p-type) thin films on the in-plane charge transport properties of large area CVD graphene under vacuum. This study was performed on a population of 300 graphene field effect transistors. The output characteristic of the transistors revealed that a C60 thin film adsorbate increased the graphene hole density by (1.65 ± 0.36) × 1012 cm−2, whereas a Pentacene thin film increased the graphene electron density by (0.55 ± 0.54) × 1012 cm−2. Hence, C60 induced a graphene Fermi energy downshift of about 100 meV, while Pentacene induced a Fermi energy upshift of about 120 meV. In both cases, the increase in charge carriers was accompanied by a reduced charge mobility, which resulted in a larger graphene sheet resistance of about 3 kΩ at the Dirac point. Interestingly, the contact resistance, which varied in the range 200 Ω–1 kΩ, was not significantly affected by the deposition of the organic molecules. Full article
(This article belongs to the Special Issue Carbon-Based Multifunctional Nanomaterials: Synthesis, Properties and Application)
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