Electronic and Optical Properties of 2D Transition Metal Carbides and Nitrides (MXenes).
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TLDR
In this paper, the electronic and optical properties of 2D transition metal carbides, carbonitrides, and nitrides are discussed from both theoretical and experimental perspectives, as well as applications related to those properties.Abstract:
2D transition metal carbides, carbonitrides, and nitrides, known as MXenes, are a rapidly growing family of 2D materials with close to 30 members experimentally synthesized, and dozens more studied theoretically. They exhibit outstanding electronic, optical, mechanical, and thermal properties with versatile transition metal and surface chemistries. They have shown promise in many applications, such as energy storage, electromagnetic interference shielding, transparent electrodes, sensors, catalysis, photothermal therapy, etc. The high electronic conductivity and wide range of optical absorption properties of MXenes are the key to their success in the aforementioned applications. However, relatively little is currently known about their fundamental electronic and optical properties, limiting their use to their full potential. Here, MXenes' electronic and optical properties from both theoretical and experimental perspectives, as well as applications related to those properties, are discussed, providing a guide for researchers who are exploring those properties of MXenes.read more
Citations
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The world of two-dimensional carbides and nitrides (MXenes)
TL;DR: A forward-looking review of the field of 2D carbides and nitrides can be found in this article, where the challenges to be addressed and research directions that will deepen the fundamental understanding of the properties of MXenes and enable their hybridization with other 2D materials in various emerging technologies are discussed.
Pseudocapacitive Electrodes Produced By Oxidant-Free Polymerization of Pyrrole Between the Layers of 2D Titanium Carbide (MXene)
TL;DR: Heterocyclic pyrrole molecules are in situ aligned and polymerized in the absence of an oxidant between layers of the 2D Ti3C2Tx (MXene), resulting in high volumetric and gravimetric capacitances with capacitance retention of 92% after 25,000 cycles at a 100 mV s(-1) scan rate as discussed by the authors.
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Anomalous absorption of electromagnetic waves by 2D transition metal carbonitride Ti3CNTx (MXene)
Aamir Iqbal,Aamir Iqbal,Aamir Iqbal,Faisal Shahzad,Kanit Hantanasirisakul,Myung Ki Kim,Jisung Kwon,Jun-Pyo Hong,Hyerim Kim,Hyerim Kim,Daesin Kim,Daesin Kim,Yury Gogotsi,Chong Min Koo,Chong Min Koo,Chong Min Koo +15 more
TL;DR: It is shown that a two-dimensional transition metal carbonitride, Ti3CNTx MXene, with a moderate electrical conductivity, provides a higher shielding effectiveness compared with more conductiveTi3C2Tx or metal foils of the same thickness.
Journal ArticleDOI
Two-dimensional MXenes: From morphological to optical, electric, and magnetic properties and applications
Xiantao Jiang,Artem V. Kuklin,Alexander Baev,Yanqi Ge,Hans Ågren,Hans Ågren,Han Zhang,Paras N. Prasad +7 more
TL;DR: In this article, the state-of-the-art progress on MXene theory, materials synthesis techniques, morphology modifications, opto-electro-magnetic properties, and their applications are comprehensively discussed.
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Ultraflexible and Mechanically Strong Double-Layered Aramid Nanofiber-Ti3C2Tx MXene/Silver Nanowire Nanocomposite Papers for High-Performance Electromagnetic Interference Shielding.
Zhonglei Ma,Kang Songlei,Jianzhong Ma,Liang Shao,Yali Zhang,Chao Liu,Wei Ajing,Xiang Xiaolian,Linfeng Wei,Junwei Gu +9 more
TL;DR: The results indicate that the double-layered nanocomposite papers have excellent potential for high-performance EMI shielding and thermal management applications in aerospace, military and artificial intelligence, smart and wearable electronics.
References
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Electrophoretic Deposition of Two-Dimensional Titanium Carbide (MXene) Thick Films
TL;DR: In this paper, the authors demonstrate the fabrication of Ti3C2Tx MXene films using electrophoretic deposition (EPD) under constant voltage conditions from aqueous and propylene carbonate-based suspensions, and investigate the effects of the EPD process parameters on film morphology, flake orientation, and functional properties.
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Dirac points with giant spin-orbit splitting in the electronic structure of two-dimensional transition-metal carbides
Hossein Fashandi,Viktor Ivády,Viktor Ivády,Per Eklund,Anita Lloyd Spetz,Mikhail I. Katsnelson,Mikhail I. Katsnelson,Igor A. Abrikosov,Igor A. Abrikosov +8 more
TL;DR: In this article, the structural and electrical properties of 2D MXene sheets were investigated by means of first-principles density functional theory (DFT) calculations, and the Kohn-Sham states, plane wave states, and density functional theories were described.
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Exploration and prediction of topological electronic materials based on first-principles calculations
Hongming Weng,Xi Dai,Zhong Fang +2 more
TL;DR: In this article, the role of first-principles calculations in the selection of topological insulators is reviewed with a focus on the role played by the Wilson loop method for determining topological invariants.
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Robust half-metallic ferromagnetism in Cr 3 C 2 MXene
Yong Zhang,Feng Li +1 more
TL;DR: In this paper, an intrinsic ferromagnetism in two-dimensional layered Cr3C2 material is reported, which highlights a new promising graphene-like half-metallic ferromagnetic material for nanoscale spintronic applications.
Posted Content
Predicting Stable Phase Monolayer Mo$_2$C (MXene), a Superconductor with Chemically-Tunable Critical Temperature
TL;DR: In this article, first-principles calculations to evaluate the possible superconductivity in a 2D monolayer Mo$_2$C were performed and the most stable form was found to be the 2H MXene-Mo$_ 2$C, which shows a rather high critical temperature, tunable by surface termination.