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Characterization and Application of 2D Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Thin Films and Interfaces".

Deadline for manuscript submissions: closed (10 December 2022) | Viewed by 1436

Special Issue Editor


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Guest Editor
School of Physics and Technology, Wuhan University, Wuhan, China
Interests: 2D materials; 2D heterostructure; exciton dynamics; charge transfer; pump–probe spectroscopy

Special Issue Information

Dear Colleagues,

Since the isolation of the first single layer of graphene and the confirmation of its eminent optical, electrical, and mechanical properties, intense interest has focused on the family of 2D nanomaterials and all existing layered materials. Two-dimensional materials hold remarkable promise for optics, optoelectronics, energy, life science, etc. In the past few years, tremendous efforts have been made toward the growth of high-quality and large domain films, as well as the realization of potential applications. However, the unique physical properties of 2D materials remain buried, and the diverse applications remain untapped. Therefore, 2D materials require further comprehensive and insightful work in making a substantial transition from the search for new candidates and optimization (breadth) to exploration of exquisite device architecture and exotic physical phenomena (depth).

The aim of this Special Issue, entitled “Characterization and Application of 2D Materials”, is to offer the latest cutting-edge research and development of 2D materials. This issue seeks to publish recent advances in the synthesis of novel and high-quality 2D materials, device fabrication, and new physical phenomena. Both experimental and theoretical articles will be published in this Special Issue, focusing on the state of the art of recent research on the engineering and developments of 2D materials.

As a renowned expert in the field of 2D nanomaterials, I would like to invite you to submit a manuscript to foster the “Characterization and Application of 2D Materials” Special Issue. 

Prof. Dr. Ti Wang
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. Materials 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

  • 2D materials
  • 2D perovskites
  • 2D heterostructure
  • exciton dynamics
  • charge transfer
  • pump-probe spectroscopy

Published Papers (1 paper)

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Research

16 pages, 5092 KiB  
Article
Tribological Behavior of Reduced Graphene Oxide–Al2O3 Nanofluid: Interaction among Testing Force, Rotational Speed and Nanoparticle Concentration
by Chenglong Wang, Jianlin Sun, Linghui Kong and Jiaqi He
Materials 2022, 15(15), 5177; https://doi.org/10.3390/ma15155177 - 26 Jul 2022
Cited by 5 | Viewed by 1134
Abstract
The tribological properties of nanofluids are influenced by multiple factors, and the interrelationships among the factors are deserving of further attention. In this paper, response surface methodology (RSM) was used to study the tribological behavior of reduced graphene oxide–Al2O3 (rGO-Al [...] Read more.
The tribological properties of nanofluids are influenced by multiple factors, and the interrelationships among the factors are deserving of further attention. In this paper, response surface methodology (RSM) was used to study the tribological behavior of reduced graphene oxide–Al2O3 (rGO-Al2O3) nanofluid. The interaction effects of testing force, rotational speed and nanoparticle concentration on the friction coefficient (μ), wear rate (Wr) and surface roughness (Ra) of steel disks were investigated via the analysis of variance. It was confirmed that all the three input variables were significant for μ and Wr values, while testing force, nanoparticle concentration and its interaction with testing force and rotational speed were identified as significant parameters for Ra value. According to regression quadratic models, the optimized response values were 0.088, 2.35 × 10−7 mm3·N−1·m−1 and 0.832 μm for μ, Wr and Ra, which were in good agreement with the actual validation experiment values. The tribological results show that 0.20% was the optimum mass concentration which exhibited excellent lubrication performance. Compared to the base fluid, μ, Wr and Ra values had a reduction of approximately 45.6%, 90.3% and 56.0%. Tribochemical reactions occurred during the friction process, and a tribofilm with a thickness of approximately 20 nm was generated on the worn surface, consisting of nanoparticle fragments (rGO and Al2O3) and metal oxides (Fe2O3 and FeO) with self-lubrication properties. Full article
(This article belongs to the Special Issue Characterization and Application of 2D Materials)
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