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Thin Film Transistor

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ISBN: 9783039215263 / 9783039215270 Year: Pages: 108 DOI: 10.3390/books978-3-03921-527-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Electrical and Nuclear Engineering
Added to DOAB on : 2019-12-09 16:10:12
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Recently, new wide-band energy gap semiconductors can be grown by ALD, PLD, sputtering, or MOCVD. They have great potential for the fabrication and application to TFTs. Inorganic semiconductors have good stability against environmental degradation over their organic counterparts, whereas organic materials are usually flexible, transparent, and when solution-processed at low temperatures, are prone to degradation when exposed to heat, moisture, and oxygen. For this Special Issue, we invited researchers to submit papers discussing the development of new functional and smart materials, and inorganic as well as organic semiconductor materials, such as ZnO, InZnO, GaO, AlGaO, AnGaO, AlN/GaN, conducting polymers, molecular semiconductors, perovskite-based materials, carbon nanotubes, carbon nanotubes/polymer composites, and 2D materials (e.g., graphene, MoS2) and their potential applications in display drivers, radio frequency identification tags, e-paper, gas, chemical and biosensors, to name but a few.

Structural Control of Mineral Deposits. Theory and Reality

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ISBN: 9783038977841 / 9783038977858 Year: Pages: 256 DOI: 10.3390/books978-3-03897-785-8 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General)
Added to DOAB on : 2019-06-26 10:09:00
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""Structural Control"" remains a crucial point that frequently lacks in any scientific and/or economic analysis of ore deposits, whatever their type and class. The case of lode deposits is exemplary, although also other deposits, like breccia pipe, stockwerk, massive sulphides, skarn, etc., can, surprisingly, be concerned. Several concepts like the gold-bearing shear zone have not proven valid during the last few decades in terms of our understanding of gold deposit and have been totally abandoned. Additionally, the relationships between magmatism, regional tectonic context, and mineralization remain uncertain and have been debated in several recent publications. This demonstrates that this issue is still relevant, and its solution may help in the distinction between intrusion-related and orogenic deposits. In this Special Issue, we particularly invite any case study of mineral deposits, in which it has been demonstrated that structural geology may have a significant role in the establishment of the deposit model of formation and/or on exploration and exploitation programs. Examples in which the structural model diverges from those described in the classical literature are particularly welcomed, including studies in which relationships with magmatism can be suspected and/or demonstrated. Indeed, all cases that illustrate concepts that differ from the classic ones and from theoretical models may represent significant contributions to this volume.

Siloxane-Based Polymers

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ISBN: 9783038971252 / 9783038971269 Year: Pages: 188 DOI: 10.3390/books978-3-03897-126-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
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

fabrication --- multielectrode array (MEA) --- PDMS --- PDMS etching --- plateau-shaped electrode --- recessed electrode --- spinal cord signal recording --- underexposure --- organosilane --- quartz microcrystal --- encapsulant --- refractive index --- thermal conductivity --- poly(dimethylsiloxanes) --- surface modification --- nanosilica --- diethyl carbonate --- carbon content --- morphology --- coatings --- fillers --- hybrid hydrogel --- MAPOSS --- mechanical properties --- swelling --- drug release --- dental resin --- methacryl POSS --- shrinkage --- hardness --- scratch resistance --- ceramizable silicone rubber --- borate --- halloysite --- composite --- ceramizable mechanism --- polysiloxanes --- mortar --- basalt fibre --- roughness --- surface free energy --- poly(ethylene glycol) (PEG) --- hydrophilic --- non-releasable --- polydimethylsiloxane --- coatings --- cross-linking --- surface --- amphiphilic --- anti-bioadhesion --- hyperbranched poly(methylhydrosiloxanes) --- hydrolytic polycondensation --- 29Si-NMR --- topology of polysiloxane chains --- polyhedral oligomeric silsesquioxanes --- high molecular weight --- nanoparticles --- PDMS --- sugar templating process --- 3D porous network --- thermal stability --- TG-FTIR --- X-ray (Micro-CT) microtomography --- sol-gel --- hybrids --- chlorogenic acid --- bioactivity --- FTIR --- TG --- polysiloxanes --- theranostics --- drug delivery --- nanomedicine --- PDMS --- silicon --- ultraviolet (UV) curable coatings --- low surface energy materials --- fluorinated siloxane resin

Polymetallic Metallogenic System

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ISBN: 9783039212934 / 9783039212941 Year: Pages: 538 DOI: 10.3390/books978-3-03921-294-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General)
Added to DOAB on : 2019-12-09 16:10:12
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Within the last decade, the high and continuing demand for precious and base metals, as well as critical elements, has prompted a global rush on a scale never before seen. This eventually resulted in the demand for considerable innovation and improvement in mineral deposit genetic modelling and ore formation regimes for the many different types of gold deposits, now recognized, and paralleled by the wide employment of exploration techniques and a rapid expansion of geological databases. This Special Issue will show case studies of porphyry polymetal systems, orogenic gold formations, water–rock reaction, ore-forming structure evolution, mineralogy and petrology of ore deposit, ore formation regime, geochronology and geochemistry of ore deposit, ore-forming evolution, mineral exploration and cutting-edge technology in ore deposit study.

Keywords

W–Sn skarn --- whole-rock geochemistry --- Huangshaping --- Shizhuyuan --- Xianghualing --- Rare-Earth Elements --- C–O isotopes --- hydrothermal calcite --- ore-forming processes --- Phapon gold deposit --- oxidation state --- hydrous melts --- constraints on mineralization --- Beiya Au deposit --- SW China --- zircon geochronology --- magmatic oxygen fugacity --- petrogenesis --- Zaozigou deposit --- West Qinling --- archean basement --- quartz vein --- hydrothermal alteration halo --- Pinglidian gold deposit --- Jiaodong --- geochemistry --- U–Pb zircon age --- Sr–Nd isotopes --- Haoyaoerhudong gabbro --- Inner Mongolia --- geochronology --- Hf isotopes --- petrogenesis --- paleo-Tethyan ocean closure --- Zaorendao gold deposit --- West Qinling --- syenite --- post-collisional --- niobium mineralization --- Saima deposit --- Liaoning Province --- invisible gold --- visible gold --- LA-ICP-MS --- Yangshan gold belt --- West Qinling --- zircon U-Pb dating --- molybdenite Re-Os dating --- zircon Hf isotopes --- Weilasituo Sn-polymetallic deposit --- Inner Mongolia --- orogenic-gold deposit --- mineral geo-thermometry --- physicochemical condition of mineralization --- Zhengchong gold deposit --- Jiangnan orogenic belt --- lithospheric architecture --- metallogenesis --- Hf-Nd isotopic mapping --- Liaodong Peninsula --- North China Craton --- zircon U–Pb geochronology --- Sr–Nd–Pb–Hf isotopes --- low Sr and high Yb A2-type granite --- Xianghualing --- South China --- fluid inclusion --- stable isotopes --- gold deposition --- Sanshandao gold deposit --- Jiaodong --- fluid inclusions --- H–O isotope --- immiscibility --- water–rock interaction --- Sizhuang gold deposit --- Jiaodong Peninsula --- China --- Pulang porphyry Cu (–Mo–Au) deposit --- LA-ICP-MS zircon U–Pb dating --- molybdenite Re–Os dating --- high-silica adakitic rocks (HSA) --- Northwestern Yunnan Province --- C–H–O isotopes --- fluid inclusion --- Koka deposit --- orogenic gold deposit --- ore shoots --- structural control --- geostatistics --- Sizhuang gold deposit --- Jiaodong Peninsula --- skarn mineralogy --- high fugacity --- garnet Sm–Nd dating --- Late Cretaceous --- Hongshan skarn deposit --- mantle branch --- metallogenesis --- ore-controlling structures --- metallogenic rule --- ore prospecting target --- Jiaodong area --- zircon U–Pb dating --- Re–Os dating --- middle–late Jurassic --- Mo-polymetallic deposit --- Great Xing’an Range --- Dongbulage --- A-type granite --- tin mineralization --- Tiantangshan tin polymetallic deposit --- SE China --- Chishan alkaline complex --- rock geochemistry --- zircon U–Pb dating --- Lu–Hf isotopes --- Hegenshan-Heihe suture zone --- Cu-Au hydrothermal mineralization --- Hongyan deposit --- Permian A-type granite --- granite petrogenesis --- magmatic oxygen fugacity --- post-collisional slab break-off --- quartz --- trace element --- precipitation mechanism --- in situ study --- sericite --- acidity --- formation temperature --- n/a

Glassy Materials Based Microdevices

Authors: ---
ISBN: 9783038976189 Year: Pages: 284 DOI: 10.3390/books978-3-03897-619-6 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Electrical and Nuclear Engineering --- General and Civil Engineering --- Technology (General)
Added to DOAB on : 2019-03-21 15:50:41
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Microtechnology has changed our world since the last century, when silicon microelectronics revolutionized sensor, control and communication areas, with applications extending from domotics to automotive, and from security to biomedicine. The present century, however, is also seeing an accelerating pace of innovation in glassy materials; as an example, glass-ceramics, which successfully combine the properties of an amorphous matrix with those of micro- or nano-crystals, offer a very high flexibility of design to chemists, physicists and engineers, who can conceive and implement advanced microdevices. In a very similar way, the synthesis of glassy polymers in a very wide range of chemical structures offers unprecedented potential of applications. The contemporary availability of microfabrication technologies, such as direct laser writing or 3D printing, which add to the most common processes (deposition, lithography and etching), facilitates the development of novel or advanced microdevices based on glassy materials. Biochemical and biomedical sensors, especially with the lab-on-a-chip target, are one of the most evident proofs of the success of this material platform. Other applications have also emerged in environment, food, and chemical industries. The present Special Issue of Micromachines aims at reviewing the current state-of-the-art and presenting perspectives of further development. Contributions related to the technologies, glassy materials, design and fabrication processes, characterization, and, eventually, applications are welcome.

Keywords

micro-crack propagation --- severing force --- quartz glass --- micro-grinding --- microfluidics --- single-cell analysis --- polymeric microfluidic flow cytometry --- single-cell protein quantification --- glass molding process --- groove --- roughness --- filling ratio --- label-free sensor --- optofluidic microbubble resonator --- detection of small molecules --- chalcogenide glass --- infrared optics --- precision glass molding --- aspherical lens --- freeform optics --- micro/nano patterning --- 2D colloidal crystal --- soft colloidal lithography --- strain microsensor --- vectorial strain gauge --- compound glass --- microsphere --- resonator --- lasing --- sensing --- microresonator --- whispering gallery mode --- long period grating --- fiber coupling --- distributed sensing --- chemical/biological sensing --- direct metal forming --- glassy carbon micromold --- enhanced boiling heat transfer --- metallic microstructure --- microspheres --- microdevices --- glass --- polymers --- solar energy --- nuclear fusion --- thermal insulation --- sol-gel --- Ag nanoaggregates --- Yb3+ ions --- down-shifting --- photonic microdevices --- alkali cells --- MEMS vapor cells --- optical cells --- atomic spectroscopy --- microtechnology --- microfabrication --- MEMS --- microfluidic devices --- laser materials processing --- ultrafast laser micromachining --- ultrafast laser welding --- enclosed microstructures --- glass --- porous media --- fluid displacement --- spray pyrolysis technique --- dielectric materials --- luminescent materials --- photovoltaics --- frequency conversion --- device simulations --- europium --- luminescence --- hybrid materials --- microdevices --- light --- photon --- communications --- waveguides --- fibers --- biosensors --- microstructured optical fibers --- whispering gallery modes --- light localization --- optofluidics --- lab-on-a-chip --- femtosecond laser --- laser micromachining --- diffusion

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