Design, Characterization, and Application of 2D Materials

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: closed (30 June 2020) | Viewed by 9101

Special Issue Editors

Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
Interests: spintronics; 2D materials; magnonics; graphene
Special Issues, Collections and Topics in MDPI journals
Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
Interests: quantum materials; 2D materials; spintronics; thermoelectricity

Special Issue Information

Dear Colleagues,

Two-dimensional layered materials have rapidly established themselves as intriguing building blocks for a vast number of applications, offering promising prospects for next generation nanoelectronic and optoelectronic devices. Graphene, a one-atom thick layer of carbon atoms arranged in a honey-comb lattice, is at the top position, yet other possibilities include layered dielectrics, transition metal dichalcogenides, 2D ferromagnets, and the blend of them in Van der Waals heterostructures.

The Special Issue on “Design, Characterization, and Application of 2D materials” is intended to cover a broad description in the field of two-dimensional materials, involving their growth and characterization as well as sample fabrication based on layered materials and their potential applications. Researchers working in the field of two-dimensional materials are welcome to contribute to this issue whose scope is intended to cover multiple aspects (from chemistry to physics) of these fascinating systems.

Dr. Marius V. Costache
Dr. Juan F. Sierra
Guest Editors

Manuscript Submission Information

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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. Crystals is an international peer-reviewed open access monthly 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

  • Graphene
  • Transition metal dichalcogenides
  • 2D ferromagnets
  • 2D spintronics

Published Papers (3 papers)

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Research

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10 pages, 4370 KiB  
Article
Black Phosphorus-Molybdenum Disulfide Hetero-Junctions Formed with Ink-Jet Printing for Potential Solar Cell Applications with Indium-Tin-Oxide
by Ravindra Ketan Mehta and Anupama Bhat Kaul
Crystals 2021, 11(5), 560; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst11050560 - 18 May 2021
Cited by 11 | Viewed by 2186
Abstract
In this work, we implemented liquid exfoliation to inkjet-print two-dimensional (2D) black phosphorous (BP) and molybdenum disulfide (MoS2) p–n heterojunctions on a standard indium tin oxide (ITO) glass substrate in a vertical architecture. We also compared the optical and electrical properties [...] Read more.
In this work, we implemented liquid exfoliation to inkjet-print two-dimensional (2D) black phosphorous (BP) and molybdenum disulfide (MoS2) p–n heterojunctions on a standard indium tin oxide (ITO) glass substrate in a vertical architecture. We also compared the optical and electrical properties of the inkjet-printed BP layer with that of the MoS2 and the electrical properties of the mechanically exfoliated MoS2 with that of the inkjet-printed MoS2. We found significant differences in the optical characteristics of the inkjet-printed BP and MoS2 layers attributed to the differences in their underlying crystal structure. The newly demonstrated liquid exfoliated and inkjet-printed BP–MoS2 2D p–n junction was also compared with previous reports where mechanically exfoliated BP–MoS2 2D p–n junction were used. The electronic transport properties of mechanically exfoliated MoS2 membranes are typically better compared to inkjet-printed structures but inkjet printing offers a cost-effective and quicker way to fabricate heterostructures easily. In the future, the performance of inkjet-printed structures can be further improved by employing suitable contact materials, amongst other factors such as modifying the solvent chemistries. The architecture reported in this work has potential applications towards building solar cells with solution processed 2D materials in the future. Full article
(This article belongs to the Special Issue Design, Characterization, and Application of 2D Materials)
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13 pages, 5300 KiB  
Article
Research on Local Sound Field Control Technology Based on Acoustic Metamaterial Triode Structure
by Peng Yang, Jingzhi Wu, Rongrong Zhao and Jianning Han
Crystals 2020, 10(3), 204; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst10030204 - 16 Mar 2020
Cited by 5 | Viewed by 2488
Abstract
Cell photoacoustic detection faces the problem where the strength of the sound wave signal is so weak that it easily gets interfered by other acoustic signals. A sonic triode model based on an artificial periodic structure is designed by COMSOL Multiphysics 5.3a software [...] Read more.
Cell photoacoustic detection faces the problem where the strength of the sound wave signal is so weak that it easily gets interfered by other acoustic signals. A sonic triode model based on an artificial periodic structure is designed by COMSOL Multiphysics 5.3a software (Stockholm, Sweden), and software simulations are conducted. Experiments show that when a sound wave with a specific frequency is input by the sound wave triode, it can produce an energy amplification effect on the sound wave signals of the same frequency and a blocking effect on the sound wave signals of other frequencies. This contrast effect is more obvious after increasing the sound pressure intensity of the input sound wave signal. It can effectively filter out interference sound signals. The study of the acoustic triode model provides a new approach for the acquisition and identification of acoustic signals in cell photoacoustic detection, which can significantly improve the working efficiency and accuracy of cell photoacoustic detection. Full article
(This article belongs to the Special Issue Design, Characterization, and Application of 2D Materials)
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Review

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12 pages, 5349 KiB  
Review
The Role of Astaxanthin on Chronic Diseases
by Xueqi Zhang, Yachen Hou, Jingan Li and Jianfeng Wang
Crystals 2021, 11(5), 505; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst11050505 - 03 May 2021
Cited by 17 | Viewed by 3989
Abstract
Natural astaxanthin exists widely in algae, fungi, shrimp and crab, and, as a strong antioxidant, has potential effects on cardiovascular diseases, cancer, liver diseases and other physical health diseases. The treatment of many diseases involves the body’s signal transduction to regulate the body’s [...] Read more.
Natural astaxanthin exists widely in algae, fungi, shrimp and crab, and, as a strong antioxidant, has potential effects on cardiovascular diseases, cancer, liver diseases and other physical health diseases. The treatment of many diseases involves the body’s signal transduction to regulate the body’s antioxidant defense system and inflammation. Astaxanthin is usually used as a dietary supplement, which plays an antioxidant and anti-inflammatory role in the organism. This article reviews the structure, source of astaxanthin and how it plays an anti-inflammatory and anti-oxidant role in organisms, especially in treating diabetes. Full article
(This article belongs to the Special Issue Design, Characterization, and Application of 2D Materials)
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