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“#Nano-polycatenane synthesis achieved with molecular self-assembly” Atomic Force Microscopy (AFM) images of poly[22]catenane, the longest polycatenane created by the research group (top) and five interlocked rings in a linear arrangement similar to the Olympic Games symbol (bottom) Credit: Shiki Yagai An international research group led by Chiba University Professor Shiki Yagai has for the first…
“#Using magnetic worms to engineer nanoscale communication systems” Prof. Dirk Grundler and doctoral assistant Sho Watanabe with a broadband spin-wave spectroscopy set up. Credit: EPFL / Alain Herzog Researchers at EPFL have shown that electromagnetic waves coupled to precisely engineered structures known as artificial ferromagnetic quasicrystals allow for more efficient information transmission and processing at…
“#Researchers develop dielectrophoretic tweezers for toxic nanoparticles” Model diagram of the nanogap electrodes allowing the dielectrophoretic tweezer technology. Credit: Korea Institue of Science and Technology(KIST) A Korean research team has developed a technology that enables the effective control of fine particulate matter and nanoplastics, which are major causes of human toxicity and ecosystem disturbances. This…
“#Review of progress towards advanced Lithium-sulfur batteries” Lithium-sulfur (Li-S) batteries have attracted much attention for its high energy density, low cost and environmental friendliness. However, they suffer from short life cycle, low columbic efficiency, and safety issues. Through summarizing and outlining the effective strategies to solve the above challenges, in this review, the recent progresses…
“#Exchange bias in van der Waals heterostructures” Schematic showing (left) the device structure, with optical image of the CrCl3/Fe3GeTe2 heterostructure on top of the Pt Hall contacts shown in the inset. (Right) Rxy~H loops showing the experimental outcome of the tests done on the device structure using two types of materials – individual Fe3GeTe2(30 nm)…
“#New materials for extra thin computer chips” Calcium fluoride is a crystalline insulator with a well defined surface. Therefore, it is ideally suited for manufacturing extremely small transistors. Credit: Vienna University of Technology Ever smaller and ever more compact—this is the direction in which computer chips are developing, driven by industry. This is why so-called…
“#Liquid metal synthesis for better piezoelectrics: Atomically-thin tin-monosulfide” Output voltage in a practical, wearable device: voltage output during tensile bending and relaxing (two-electrode device). Credit: FLEET An RMIT-UNSW collaboration has applied liquid-metal synthesis to piezoelectrics, advancing future flexible, wearable electronics, and biosensors drawing their power from the body’s movements. Materials such as atomically thin tin-monosulfide…
“#Understanding the optimal process for fabricating coupled nanocrystal solids” In the solvent-dominated regime, the dots are capped with long oleic acid molecules, which hamper the flow of electricity. After the transition, these are replaced by linker molecules, allowing the dots to conduct electricity efficiently. From left to right is the solvent-dominated regime, the transition regime…
“#Researchers develop high-speed, low-power silicon-germanium chips for cloud computing” Figure: (left) Three dimensional schematics of the chip-integrated avalanche photodetector with silicon-germanium PIN hetero-junctions. (right) 40 Gbps eye diagram apertures for those photodiodes obtained within the C2N “RF and Optics Experimentations” platform. Credit: C2N Researchers at the Centre de Nanosciences et de Nanotechnologies, in cooperation with…
“#Purifying water with the help of wood, bacteria and the sun” A solar steam generator has an upper layer (black) of light-absorbing carbon nanotubes, a middle layer (grey) of heat-insulating glass bubbles, and a bottom layer (brown) of water-transporting wood. Credit: Adapted from Nano Letters 2020, DOI: 10.1021/acs.nanolett.0c01088 According to the United Nations, about one-fifth…