Investigations of proximity-induced superconductivity in the topological insulator Bi2Te3 by microRaman spectroscopy

1. Fu, L. & Kane, C. L. Superconducting proximity effect and majorana fermions at the surface of a topological insulator. Phys. Rev. Lett. 100, 096407 (2008). ADS  PubMed  Google Scholar  2. Kitaev, A. Y. Fault-tolerant quantum computation by anyons. Ann. Phys. (N. Y.) 303, 2–30 (2002). ADS  MathSciNet  MATH  Google Scholar  3. He, M., Sun,… Continue reading Investigations of proximity-induced superconductivity in the topological insulator Bi2Te3 by microRaman spectroscopy

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A microwell-based impedance sensor on an insertable microneedle for real-time in vivo cytokine detection

The sensor, consisting of a 20 μm × 20 μm microwell array comprising 25 individual 2 μm-diameter wells embedded on a sensing tip, is lithographically configured on a laser micromachined fused silica microneedle. A schematic view of the microwell sensing platform, comprising a pair of gold electrodes separated by a 40 nm insulating layer of aluminum oxide, is shown in Fig.… Continue reading A microwell-based impedance sensor on an insertable microneedle for real-time in vivo cytokine detection

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Novel color photography using a high-efficiency probe can super-focus white light into a 6-nanometer spot for nanoscale color imaging — ScienceDaily

Scientists have developed new materials for next-generation electronics so tiny that they are not only indistinguishable when closely packed, but they also don’t reflect enough light to show fine details, such as colors, with even the most powerful optical microscopes. Under an optical microscope, carbon nanotubes, for example, look grayish. The inability to distinguish fine… Continue reading Novel color photography using a high-efficiency probe can super-focus white light into a 6-nanometer spot for nanoscale color imaging — ScienceDaily

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Novel color photography using a high-efficiency probe can super-focus white light into a 6-nanometer spot

Credit: Pixabay/CC0 Public Domain Scientists have developed new materials for next-generation electronics so tiny that they are not only indistinguishable when closely packed, but they also don’t reflect enough light to show fine details, such as colors, with even the most powerful optical microscopes. Under an optical microscope, carbon nanotubes, for example, look grayish. The… Continue reading Novel color photography using a high-efficiency probe can super-focus white light into a 6-nanometer spot

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A full gap above the Fermi level: the charge density wave of monolayer VS2

CDW in monolayer VS2 The typical morphology of the MBE-grown monolayer VS2 islands on Gr/Ir(111) is shown in the large-scale STM image in Fig. 1a. The islands were grown by room-temperature deposition of vanadium in a sulfur background pressure of ({P}_{{{{{{{{rm{S}}}}}}}}}^{{{{{{{{rm{g}}}}}}}}},=,1,{times },10^{-8} {{{{{{{rm{mbar}}}}}}}}) and subsequently annealed at 600 K in the same sulfur pressure. Annealing to temperatures… Continue reading A full gap above the Fermi level: the charge density wave of monolayer VS2

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Accelerated discovery of superoxide-dismutase nanozymes via high-throughput computational screening

Energy level principle We first developed a theoretical model to predict the activity of NMs catalyzing the dismutation of O2•−. In nature, SOD is the enzyme that specifically catalyzes this reaction, and previous studies have achieved a thermodynamics-based model (Fig. 1b)34. According to this model, the reduction potential order φ1 < φSOD < φ2 is the sufficient and necessary condition… Continue reading Accelerated discovery of superoxide-dismutase nanozymes via high-throughput computational screening

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Electrospinning preparation of g-C3N4/Nb2O5 nanofibers heterojunction for enhanced photocatalytic degradation of organic pollutants in water

1. Tkaczyk, A., Mitrowska, K. & Posyniak, A. Synthetic organic dyes as contaminants of the aquatic environment and their implications for ecosystems: A review. Sci. Total Environ. 717, 137222 (2020). ADS  CAS  PubMed  Google Scholar  2. Abdelsamad, A. M. A., Gad-Allah, T. A., Mahmoud, F. A. & Badawy, M. I. Enhanced photocatalytic degradation of textile… Continue reading Electrospinning preparation of g-C3N4/Nb2O5 nanofibers heterojunction for enhanced photocatalytic degradation of organic pollutants in water

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Light helicity detector based on 2D magnetic semiconductor CrI3

Device fabrication and characterization The CrI3 based light helicity detector was fabricated by mechanically exfoliating and dry transferring few-layer graphene, CrI3, and hexagonal boron nitride (hBN) flakes from their bulk crystals to construct graphene-CrI3-graphene heterostructure. To avoid degradation8, the device was encapsulated by hBN flakes. The top and bottom graphene layers act as the electrodes.… Continue reading Light helicity detector based on 2D magnetic semiconductor CrI3

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6 nm super-resolution optical transmission and scattering spectroscopic imaging of carbon nanotubes using a nanometer-scale white light source

Design of the VIS-NIR hyperspectral NSOM The working mechanism of the nanoscale VIS-NIR hyperspectral microscopy can be considered as a dark-field NSOM configuration, as illustrated in Fig. 1a. The radially polarized SPP in the AgNW waveguide probe is quasi-adiabatically focused by the gradually narrowing tip (Fig. 1a zoom-in), forming a plasmonic hotspot at the tip apex (tip… Continue reading 6 nm super-resolution optical transmission and scattering spectroscopic imaging of carbon nanotubes using a nanometer-scale white light source

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