Two-dimensional thin films are often fabricated using bottom-up solution-based techniques, such as electrochemical deposition and atomic layer deposition. Now researchers have reported a top-down, solid-state method based on the age-old Egyptian craft of goldbeating that they say is generalizable to various metallic, polymeric, or ceramic nanoparticles.
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Small scale, big discoveries: Reducing thickness of antiferroelectric films turns them ferroelectric
While size effects in ferroelectric materials have been extensively studied, there are far fewer studies on how structure and properties evolve in antiferroelectric materials with reduced dimensions. In a recent open-access paper, researchers report the surprising discovery that below a certain thickness, antiferroelectric films will become completely ferroelectric.
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Ferroelectric materials are expected to revolutionize the next generation of ultralow-power microelectronics. In a recent study, researchers led by the University of California, Berkeley achieved atomic-scale ferroelectricity in fluorite-structured zirconium dioxide thin films on silicon.
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Vanadium dioxide is being actively investigated for use in thermochromic glass due to its insulator-metal transition. However, the mechanism behind this transition is still not well understood. Researchers in Russia used the framework of blow-up overheating instability to improve understanding of this transition.
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A team of scientists from Texas A&M University has developed an aqueous deposition technique to build flexible MXene thin films that could enable new possibilities for future flexible electronics.
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A group of researchers from Drexel University and KAIST in South Korea has shown that titanium carbide MXene thin films have superior gas sensing ability over existing gas sensor materials, making them particularly suitable for enabling the next generation of medical diagnostic sensor technologies.
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The September 2017 issue of the ACerS Bulletin—featuring ACerS 2017 class of awards, an interagency report on ceramic coatings to improve engine efficiency, and a novel bauxite porcelain microstructure for high-voltage insulation—is now available online.
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Researchers from the University of Minnesota and beyond may have found the ideal indium tin oxide replacement in a transparent perovskite oxide material that displays record high conductivity despite having a wide bandgap.
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Researchers at Drexel University and Korea Institute of Science & Technology are working together to develop new materials into incredibly thin and lightweight films than can more effectively block electromagnetic radiation.
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A team of scientists at Northwestern University has discovered that some ferroelectric materials are hiding a surprise. Layered perovskites don’t conform to conventional wisdom—instead, these materials completely turn off polarization if enough strain is applied to them.
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