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2D Materials Can Now be Controlled with Redox Reactions

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Researchers at the Pohang University of Science & Technology (POSTECH) Department of Chemistry have discovered that redox reactions can be used to control the properties of two-dimensional (2D) materials.  Redox reactions between water and oxygen molecules in the air drive an electrochemical reaction within 2D materials that dopes them with charges from the surrounding environment.  For this experiment, graphene and tungsten disulfide were analyzed, using Raman spectroscopy and photoluminescence imaging respectively, to demonstrate this phenomenon on the nanoscale.  Key material properties such as the magnetic, optical, and electrical nature of the materials were all controllable via redox manipulation.  Now that...

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Revolutionize Wireless Communication Transistors with Gallium Nitride

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Researchers at the University of Delaware have developed a new, high-electron mobility transistor based on gallium nitride (GaN) with a barrier of indium aluminum-nitride on top of a silicon substrate.  Among its record-setting properties, the new transistor demonstrates the following: Low gate leakage current that ensures over the operation of the device, it does not lose a significant amount of current in the form of heat and general efficiency loss High on/off current ratio which generates a large, measureable difference in the magnitude of current that is transmitted when the device is in its on state versus its off state...

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5 Reasons Nanomaterials are the Future of Energy Storage

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An international conglomerate of scientists and researchers from Drexel, Stanford, Graphene Labs, the Center for Advancing Electronics Dresden (CFAED) and others have collaborated to develop a report that details how the future of energy storage technology lies in nanomaterials.  The chief benefits of nanomaterials can be summarized into five major categories: Lifetime – nanoparticles allow devices to achieve longer lifetimes due to their minimized contact area, which prevents strain induced degradation during battery cycling. Flexibility – nanowire (1D) and nanoflake (2D) materials are both compatible with flexible devices while simultaneously achieving high electronic and ionic conductivity. Manufacturing – the unique...

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MSE Supplies at 2019 MRS Fall Meeting & Exhibit Booth 719 (Limited Time Offers Available)

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MSE Supplies joined materials scientists and engineers at the 2019 MRS Fall Meeting & Exhibit in Boston, MA (December 1-6, 2019) at Booth 719.   In appreciation to our thousands of existing and new customers, MSE Supplies is offering a special 2019 MRS Fall Meeting & Exhibit discount code for $50 OFF all orders placed on msesupplies.com (minimum purchase amount $500). This special offer expires after December 31st, 2019.   Discount Code: MSE2019MRS50 ($50 OFF online orders of $500 or more). Our Mission With a mission to support scientists and engineers worldwide to accelerate their innovations, MSE Supplies is committed to supplying high quality materials,  equipment and analytical services for research and...

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What Governs Crystal Growth? Scientists Have Revealed a Fundamental Phenomenon

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Researchers at the University of Illinois at Chicago have used computer-based simulations to discover the general mechanism that governs crystal growth in materials – fluctuations in the solvent shield.  The solvent shield is a molecular shell comprised of solvent molecules that coalesce around a crystalline material when said material is immersed within a solvent.  Fluctuations in this shield allow molecules to break free and incorporate themselves into the crystal's surface in order to grow the overall structure, molecule by molecule.  The temperature, the solvent type, and the number of solvent molecules are all controllable variables that determine these shell fluctuations. ...

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