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Hefei Institutes of Physical Science, Chinese Academy of Sciences


High-performance SERS substrate proposed based on 2H-TaS2 and single-atom-layer gold clusters

Researchers propose a new SERS substrate based on 2D layered material Au-2H-TaS2, achieving a two orders of magnitude enhancement in Raman scattering. The study reveals an innovative electromagnetic field enhancement mechanism through near neighbor electron orbit coupling effect.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalThe Journal of Physical Chemistry Letters·DateOct 10, 2023

Researchers developed novel multi-sensor data fusion methods for rapid and accurate compound fertilizer quality detection

A research team developed a data fusion strategy combining near-infrared spectroscopy (NIRS) and laser-induced breakdown spectroscopy (LIBS) for fast and accurate detection of compound fertilizer components. The approach improved accuracy by up to 33.5% compared to LIBS alone.

Scientists discover the reassembly of parallel trimolecular G-quadruplex via novel hoogsteen strand displacement reaction

Researchers from Hefei Institutes of Physical Science discovered a novel reassembly process for G-quadruplexes through Hoogsteen SDR, revealing unique recognition modes between probes and targets. This breakthrough offers new possibilities for GQ reassembly and insights into G-rich DNA interactions.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalJournal of the American Chemical Society·DateOct 10, 2023

Researchers develop high-performance zero thermal expansion composite for precision devices

Scientists have developed a high-performance zero thermal expansion composite using Cu2P2O7 and 2024Al, exhibiting excellent properties such as low density, high thermal conductivity, and good machinability. The composite's dimension stability makes it suitable for precision devices in high-tech fields.

Researchers achieve efficient nutrient delivery to crop leaves through nanomaterial surface roughness engineering

Scientists create a pH-controlled oxidation-resistant ferrous foliar fertilizer delivery system that adheres efficiently to hydrophobic leaf surfaces. The innovative technology enhances crop yield and alleviates iron deficiency, offering a viable approach for improving crop nutrition and productivity.

Researchers achieve high-performance lithium-ion batteries through upcycling of degraded LiCoO2 cathodes

Researchers have developed a solid-phase sintering strategy to convert degraded LiCoO2 cathodes into high-energy-density lithium-ion batteries. The upcycled cathodes exhibit superior cycling performance and rate capability, making this method a promising solution for alleviating resource scarcity and environmental contamination.

A double barrier design proposed to enhance the tunneling electroresistance

Researchers proposed a double barrier structure to enhance tunneling electroresistance in ferroelectric tunnel junctions, achieving a TER ratio of 2.210×10^8% in DB-FTJs, outperforming single barrier designs by three orders of magnitude. The design enables multiple resistance states through controlled polarization of individual barriers.

Study reveals correlation between Zener relaxation and magnetostriction in FeGa single crystals

Researchers discovered a correlation between Zener relaxation and magnetostriction in FeGa single crystals, revealing that stress-induced reorientation of defects can give rise to an internal friction peak. The study also found a positive correlation between Zener relaxation strength and the magnetostriction coefficient, demonstrating ...

Novel multi-sensor fusion models enable fast and accurate detection of surface water quality

Researchers developed a novel strategy to detect surface water pollution by fusing UV-Vis and NIR spectral data. The approach improved prediction accuracy for COD, AN, and TN, providing a promising technology for real-time water quality monitoring.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalSpectrochimica Acta Part A Molecular and Biomolecular Spectroscopy·DateJul 25, 2023

Scientists develop a high-energy-density and ultralong-life aqueous zinc-ion battery

Researchers at Hefei Institutes of Physical Science developed a high-performance aqueous zinc-ion battery with an ultralong cycle lifespan in a weak magnetic field. The team created a VS2 material with rich defects that reduced electrostatic interaction between zinc ions and improved rate capability.

Advanced detection technology developed for aerosol single scattering albedo vertical profile

A new custom optical system and high-precision controllers enabled the detection of aerosol single scattering albedo (SSA) vertical profiles for the first time. This innovation provides accurate observation data for understanding aerosol radiation interaction and atmospheric boundary layer feedbacks.

Scientists discover semi-metallization and novel photoelectric behavior in lead iodide under high pressure

Researchers at Hefei Institutes of Physical Science found that lead iodide undergoes a transition to a semimetallic state when subjected to pressure, expanding its spectral response range. This discovery presents a new strategy for designing high-performance photodetectors with broadband responses.

Radiation damage simulation software developed for defect accumulation mechanisms study in polycrystalline materials

Researchers developed a new simulation software to study defect accumulation mechanisms in polycrystalline metals. The software clarifies the dependence of vacancy accumulation on grain boundary character and grain size, revealing new interaction processes and their coupling.

Novel faraday rotation spectroscopy sensor enables simultaneous two-component detection of nitrogen oxides

A new FRS sensor enables simultaneous two-component detection of nitrogen oxides, addressing slow measurement rates and lack of selectivity in traditional methods. The sensor achieves high detection sensitivity using wavelength modulation spectroscopy and a static magnetic field.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalSensors and Actuators B Chemical·DateMay 4, 2023

SHMFF users proposed new method for efficient biomimetic catalysts

Scientists at Hefei Institutes of Physical Science proposed a facile method to design efficient biomimetic catalysts using mechanical induced spin transition. The results show that the mixed-spin nanosheet catalyst exhibits high CO yield and selectivity, outperforming its high-spin counterpart.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalAngewandte Chemie International Edition·DateApr 24, 2023

Electronic phase diagram established in Fe intercalated Weyl semimetal Td-MoTe2 for the first time

Researchers from Hefei Institutes of Physical Science established the first electronic phase diagram for Fe-intercalated Weyl semimetal Td-MoTe2, exhibiting exotic electronic behaviors and magnetic states. The study enriched the physical properties of Td-MoTe2 by 3D-element intercalation.