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Two-Dimensional Electronics and Optoelectronics

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ISBN: 9783038424925 9783038424932 Year: Pages: VIII, 143 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General)
Added to DOAB on : 2017-10-04 11:05:28
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The discovery of monolayer graphene led to a Nobel Prize in Physics being awarded in 2010. This has stimulated further research on a wide variety of two-dimensional (2D) layered materials. The coupling of metallic graphene, semiconducting 2D transition metal dichalcogenides (TMDCs) and black phosphorus have attracted a tremendous amount of interest in new electronic and optoelectronic applications. Together with other 2D materials, such as the wide band gap boron nitride nanosheets (BNNSs), all these 2D materials have led towards an emerging field of van der Waal 2D heterostructures. The papers in this book were originally published by Electronics (MDPI) in a Special Issue on “Two-Dimensional Electronics and Optoelectronics”. The book consists of eight papers, including two review articles, covering various pertinent and fascinating issues concerning 2D materials and devices. Further, the potential and the challenges of 2D materials are discussed, which provide up to date guidance for future research and development.

Superhydrophobic Coatings for Corrosion and Tribology

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ISBN: 9783039217847 9783039217854 Year: Pages: 166 DOI: 10.3390/books978-3-03921-785-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-01-07 09:08:26
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Superhydrophobic surfaces, with a water contact angle >150°, have attracted both academic and industrial interest due to their wide range of applications, such as water proofing, anti-fogging, antifouling, anti-icing, fluidic drag reduction and anti-corrosion. Currently the majority of superhydrophobic coatings are created using organic chemicals with low surface energy. However, the lack of mechanical strength and heat resistance prevents the use of these coatings in harsh environments. Quality superhydrophobic coatings developed using inorganic materials are therefore highly sought after. Ceramics are of particular interest due to their high mechanical strength, heat and corrosion resistance. Such superhydrophobic coatings have recently been successfully fabricated using a variety of ceramics and different approaches, and have shown the improved wear and tribocorrosion resistance properties. This Special Issue focuses on the recent developments in the fabrication of superhydrophobic coatings and their robustness against corrosion and wear resistance, but the original work on other properties of superhydrophobic coatings are also welcome. In particular, the topics of interest include, but are not limited to: Robust superhydrophobic coatings; Coatings with super-wettability in multifunctional applications; Wetting effects on corrosion and tribology; Hierarchical Coating for wetting and modelling.

Nanoparticle-Reinforced Polymers

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ISBN: 9783039212835 9783039212842 Year: Pages: 334 DOI: 10.3390/books978-3-03921-284-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-08-28 11:21:27
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This book, a collection of 12 original contributions and 4 reviews, provides a selection of the most recent advances in the preparation, characterization, and applications of polymeric nanocomposites comprising nanoparticles. The concept of nanoparticle-reinforced polymers came about three decades ago, following the outstanding discovery of fullerenes and carbon nanotubes. One of the main ideas behind this approach is to improve the matrix mechanical performance. The nanoparticles exhibit higher specific surface area, surface energy, and density compared to microparticles and, hence, lower nanofiller concentrations are needed to attain properties comparable to, or even better than, those obtained by conventional microfiller loadings, which facilitates processing and minimizes the increase in composite weight. The addition of nanoparticles into different polymer matrices opens up an important research area in the field of composite materials. Moreover, many different types of inorganic nanoparticles, such as quantum dots, metal oxides, and ceramic and metallic nanoparticles, have been incorporated into polymers for their application in a wide range of fields, ranging from medicine to photovoltaics, packaging, and structural applications.

Keywords

chemical and physical interface --- surface modification of silica --- latex compounding method --- silica/NR composite --- thermoresponsive hyperbranched polymer --- gold nanoparticles --- in-situ synthesis --- colorimetric sensor --- silver ions --- Ag nanoparticles --- catalysis --- composite membrane --- separation --- SiO2 microspheres --- inorganic nanotubes --- PHBV --- nanomaterials --- morphology --- crystallization kinetics --- nanocomposite --- conductive polymer --- solar cell --- graphene --- graphene oxide --- power-conversion efficiency --- electrode --- active layer --- interfacial layer --- layered structures --- polymer-matrix composites --- mechanical properties --- gas barrier properties --- N-isopropylacrylamide --- N-isopropylmethacrylamide --- ratiometric temperature sensing --- FRET --- chain topology --- selective adsorption --- polymer-NP interface --- organic light-emitting diodes (OLEDs) --- PFO/MEH-PPV hybrids --- SiO2/TiO2 nanocomposite --- optoelectronic properties --- fluorescent assay --- fluorescence resonance energy transfer --- conjugated polymer nanoparticles --- gold nanoparticles --- melamine --- polymers --- composites --- carbon nanoparticles --- nano-hybrids --- nanocomposites --- sol–gel --- in situ synthesis --- metal oxides --- reduced graphene oxide --- graphene-like WS2 --- bismaleimide --- mechanical properties --- carrier transport --- polypropylene nanocomposite --- molecular chain motion --- electrical breakdown --- electric energy storage --- thermoplastic nanocomposite --- polyethylene --- power cable insulation --- electrical property --- structure-property relationship --- hybrid hydrogels --- nanoparticles --- nanosheets --- clays --- polymers --- adhesion --- n/a

Graphene and Other 2D Layered Nanomaterial-Based Films: Synthesis, Properties and Applications

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ISBN: 9783039219025 9783039219032 Year: Pages: 138 DOI: 10.3390/books978-3-03921-903-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Organic Chemistry
Added to DOAB on : 2020-01-07 09:08:26
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This book is dedicated to highlighting some relevant advances in the field of thin films and coatings based on two-dimensional crystals and layered nanomaterials. Due to their layered structure, graphene and a variety of new 2D inorganic nanosystems, called “graphene analogues”, have all attracted tremendous interest due to their unprecedented properties/superior performance, and may find applications in many fields from electronics to biotechnology. These two-dimensional systems are ultrathin and, hence, tend to be flexible, also presenting distinctive and nearly intrinsic characteristics, including electronic, magnetic, optical, thermal conductivity, and superconducting properties. Furthermore, the combination of different structures and synergetic effects may open new and unprecedented perspectives, making these ideal advanced materials for multifunctional assembled systems. As far as the field of coatings is concerned, new layered nanostructures may offer unique and multifunctional properties, including gas barrier, lubricant, conductive, magnetic, photoactive, self-cleaning, and/or antimicrobial surfaces. This book contains new findings on the synthesis and perspectives of multifunctional films that are at the forefront of the science and coating technologies.

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