Researchers have developed a facile wet-chemical method to directly grow organic-inorganic hybrid perovskite nanocrystals on dispersible MoS2 nanosheets. This enables the scalable production of solution-processible heterostructures, which exhibit improved light absorption and energy transfer due to their epitaxial interface. The use of...
Recent study reveals supports in atomically dispersed catalysts play a significant role in catalysis, not just as ligands. The findings suggest that metal atoms on the support can directly participate in the activation of reactants.
Researchers used ESMD and BGSA to study temporal and spatial patterns of drought in the Yellow River basin. The results showed that drought frequency varied by season, with summer being the driest, and suggested targeted drought resistance measures for the region.
A new fossil study reveals that tiny babies of ancient giant predators were also proficient killers, challenging current understanding of their evolution. The discovery sheds light on the rapid evolution of the first animals over half-a-billion years ago, with implications for Cambrian marine food webs.
Researchers developed a novel electron-transport material by appending triphenyltriazine to 1,10-phenanthroline. The compound showed improved electron mobility and stability in green phosphorescent OLEDs, with high efficiency and minimal decay over time.
Researchers identify five types of growth strata developed in different structures, suggesting a 'pair' of basement-involved fold-thrust belt and flexure basin controlled by flat subduction. Sediments record the history of the Yanshanian Movement and provide key evidence for tectonic property of Northeast continental margin.
Researchers have demonstrated the unique potential of carbon nitrides as hosts for isolated metal atoms, including palladium, in various crystalline forms. The study found that varying the lattice structure significantly impacts the strength of the metal-host interaction, leading to improved catalytic activity and selectivity.
A research team in China has established a Chinese Neogene chronostratigraphic sequence with accurate geological ages. The development of a uniform Neogene biostratigraphic framework for China will help to improve the division and correlation of Neogene strata.
Scientists successfully simulated FY-2D infrared cloud images using a high-resolution WRF regional numerical weather prediction model product and forward radiation transfer model RTTOV. The results show improved accuracy, with correlation coefficients greater than 0.5 in the first 24 hours.
Researchers developed a novel catalyst design by incorporating Pd interlayers into an icosahedral core shell. The Au60Pd40@Pt electrocatalyst showed remarkably enhanced activities and durabilities towards ORR in acid environment compared to commercial Pt/C and Au75Pd25@Pt icosahedra.
A novel voltage signal has been observed in a hybrid metal nanowire-superconductor structure, where the voltage peak appears at the proximity-induced superconducting transition temperature and is proportional to the cooling rate. This finding offers a new method for detecting superconductivity without damaging or dissipating current.
Research found that aquatic plants contribute significantly to long-chain n-alkanes in lake sediments, particularly in closed lakes. The study used hydrogen isotope composition to distinguish between terrestrial and aquatic sources, providing new insights into reconstructing ancient lake dynamics.
Researchers demonstrate a new algorithm to simulate quantum channels using IBM's cloud quantum computer, enabling efficient open system quantum simulation and exploring its applications in quantum communication. The method reduces gate complexity compared to Stinespring dilation, making it scalable for higher dimensions.
Researchers from Dalian University of Technology have developed a new material that can exhibit switchable functions through successive solid transformations and electron transfer. The material's properties, including magnetic, electric, and optical behavior, can be controlled using external stimuli such as light or temperature.
A new study reveals the existence of a pseudogap state in 1T-TiSe2, which shares similarities with high-Tc cuprates. The discovery indicates that CDW and superconductivity do not compete in this material, providing insight into the superconducting mechanism and its interplay with CDW.
Human activities significantly impacted the Yangtze River's channel evolution between Datong and Xuliujing. Erosion with a volume of 4.7 hundred million cubic meters occurred due to decreased sediment discharge following the Three Gorges Dam closure.
Researchers created wind-wave maps of East China Sea using satellite altimeter data and atmospheric reanalysis. The study reveals wind-wave climate patterns, including the similarity among multiple data sources, but also highlights limitations in describing marginal-sea wind-waves.
Researchers have developed a new waveguide technology that suppresses bend loss in 3D photonic integrated circuits, allowing for the creation of compact devices. The technology uses femtosecond laser direct writing to inscribe modification tracks in fused silica, increasing refractive index contrast and reducing bending losses.
Researchers have developed a new cathode material that uses cation-mixing to improve sodium storage, leading to superior rate capability, high energy efficiency, and excellent cycling performance. The
The subduction of the Pacific plate resulted in the thinning and replacement of the lithospheric mantle in the North China Craton. The Yanshan Movement, a decratonization process, was characterized by lithospheric thinning and crustal detachment triggered by asthenospheric upwelling.
Researchers have designed molecular perovskite-based energetic materials with improved explosive performances, including high detonation heat, velocity, and pressure. The new materials also exhibit increased thermal stability and low impact sensitivity, making them suitable for military devices and civil industry.
Researchers proposed a local breeding of growing modes (LBGM) method to improve convection-allowing ensemble forecasting accuracy. The new method incorporates strong locality and horizontal inhomogeneity, resulting in greater ensemble spread and lower forecast RMSE compared to traditional methods.
Researchers successfully synthesized a purely honeycomb borophene sheet on an Al(1 1 1) surface, exhibiting a planar, non-buckled honeycomb lattice similar to graphene. Theoretical calculations show that the structure is energetically stable and could enable superconductivity.
The study investigates how chain conformation influences thermal conductivity in amorphous polymers, revealing that ultra-thin polymer nanofibers exhibit higher thermal conductivity due to aligned molecular chains. An empirical function is proposed to describe the diameter dependence of chain conformation.
A team of researchers has demonstrated a proof-of-principle experimental demonstration on simulating molecular vibronic spectra using a 3D circuit quantum electrodynamics system. The simulator can model different molecules and obtain temporal correlation functions, electronic-vibronic coupling strength, and spectra of both equilibrium ...
Researchers propose two distinct floras, Rhododendron Flora and Metasequoia Flora, to represent core regions of the Sino-Japanese and Sino-Himalayan flora. The study suggests East Asian flora is relatively young, with most clades originating since the Miocene, and may be a refugial area for ancient relict plants.
Researchers predict few-layer Tellurium (FL-α-Te) as a superior semiconductor to black phosphorus due to its high carrier mobility, tunable bandgap, and strong light absorption. FL-α-Te exhibits anisotropic inter-chain vibrational behaviors and nearly isotropic strong light absorption, making it an ideal material for thermoelectrics.
Research highlights graphene oxide's exceptional antibacterial properties, which differ from traditional antibiotics. The review emphasizes the importance of understanding structure-activity relationships and molecular initiating events to improve biosafety.
Researchers from Sun Yat-Sen University have developed a new type of optical ceramic material using metal-organic frameworks, which can be transparent or optically clear. The material has been shown to have high optical transmittance and can be used for applications such as lasing gain medium and amplified spontaneous emission.
Researchers have developed a new family of aerodynamic configurations, called Hypersonic I-shaped Aerodynamic Configurations (HIAC), which aim to improve the efficiency and lift of hypersonic aircraft. The designs feature an extra wing that captures high-pressure airflow, resulting in a significant increase in lift coefficient and drag...
The NMRCloudQ service provides a comprehensive software environment for building quantum circuits and simulating experiments. Users can access a 4-qubit system with various gates, achieving high fidelity rates in single-qubit and two-qubit operations.
Researchers have successfully created an all-silicon laser based on silicon nanocrystals, which achieves high optical gains and demonstrates reliable lasing characteristics. The development of this technology paves the way for electrically pumped all-Si lasers.
Researchers have successfully implanted protons into iron-based superconductors, inducing bulk superconductivity with Tc at 20 K. Protonation also enhances Tc in FeS, overcoming the difficulty of lacking sensitive NMR isotopes.
Researchers used a new method to date ancient Mogao Grottoes paintings by analyzing their drawing styles, which were learned through deep learning. The technique successfully dated six paintings and revealed the creation era of other works, reducing uncertainties in dating ancient paintings.
Researchers propose a new interpretation of quantum mechanics, where the wave function represents a real existence rather than a mathematical description. This idea is demonstrated through an encounter-delayed-choice experiment, showing that a quantum object can exhibit both particle and wave behavior depending on the measurement.
Researchers have developed a novel MOF shell-derived surface modification of Li-rich layered oxide cathode, enhancing its electrochemical performance. The LLO@C&NiCo cathode retains up to 95% capacity after 100 cycles and exhibits high rate capability.
Researchers propose a mechanism for ancient culture evolution tied to environment change and technological development, with varying influences at local, regional, and global scales. The study suggests that sudden disasters, climate change, and technological innovations drove social evolution.
Scientists at Sun Yat-Sen University present advances in controlling the flexibility of MOFs for improved performance. They summarize strategies for designing/synthesizing flexible MOFs with specified structural response and dynamic behavior towards external stimuli.
Researchers have developed a simple and efficient criterion to identify potential topological insulators, leveraging atomic number and Pauling electronegativity. This approach enables ready screening of candidate materials, reducing the need for detailed electronic structure calculations.
Researchers have developed an electrically pumped organic semiconductor laser that overcomes the challenge of high optical loss and achieves a low threshold current, paving the way for room temperature continuous-wave lasing. The device uses a small molecule doping system and has a peak wavelength of 621.7 nm.
A team from Peking University successfully experimentally demonstrated a 70Gb/s optical link using an 18GHz band-limited VCSEL and multimode fibers. This achievement showcases the potential for realizing high-speed data transmission in data centers using low-cost and band-limited devices. The study's results have important scientific s...
Researchers at Tsinghua University and Nanjing University of Posts and Telecommunications have successfully demonstrated entanglement-based quantum secure direct communication (QSDC) over 500m optical fibers. The system uses novel fiber-based quantum light sources to generate polarization entangled Bell states, enabling secure informat...
Scientists developed adsorption-energy-based activity descriptors to improve electrocatalytic activity in energy storage. The descriptors are linked to interfacial electronic coupling, providing a new method for selecting high-activity catalysts and understanding structure-activity relationships.
Researchers demonstrate fast and scalable holonomic quantum computation using Nitrogen-vacancy center electron spins in diamond, enabling high-fidelity operations with all-optical control. This work represents the first such achievement in solid-state quantum systems.
A new study by an international research group has discovered a natural process that splits water into hydrogen and oxygen at the Earth's core-mantle boundary. This reaction could generate massive amounts of free hydrogen, affecting the deep Earth's water and hydrogen cycles. The findings also suggest the potential for large-scale oxyg...
The paper reviews recent progress in distributed cooperative anti-disturbance control (DCADC) methods for multi-agent systems, including variable structure control and sliding mode control. Key findings include the universality of disturbance existence and the importance of high-precision control in modern engineering systems.
The article discusses the importance of designing heterojunctions using 2D-materials, which have super clean surfaces and van der Waals coupling. The review highlights various factors influencing CVD fabrication, including temperature, substrate, precursor, lattice mismatch, carrier gas flow rate, and carrier gas composition.
Researchers develop a NbN-SNSPD with system detection efficiency over 90% at 2.1 K, enabling practical applications in quantum information technologies and optical quantum computing/simulation. The device exhibits timing jitters down to 79 ps, promising advantages in high-precision applications.
Inorganic-organic halide perovskites have distinctive advantages for high efficiency solar cells, with recent breakthroughs in developing efficient hole transport material free PSCs. Significant ion transport has been found to redistribute doping and defects, affecting photoelectric behavior and stability.
Researchers XiaoMing Li and ShiJun Liao found more than 600 new families of periodic orbits in the three-body problem using a new numerical simulation strategy. The discovery could lead to a deeper understanding of the system's behavior, with implications for our knowledge of chaotic dynamics.