Researchers developed an n-type, scaffolded Si–ZnxMg1-xO photocatalyst that produced hydrogen from water without sacrificial electron donors under 100 W tungsten-lamp irradiation. By tuning the Zn/Mg ratio and associated defect states, the best-performing Si–Zn0.3Mg0.7O composition reached a hydrogen evolution rate of 1,954 µmol h?¹ cm?² and an apparent quantum yield of 36.47% at 600 nm.
Researchers used a hierarchical machine learning strategy to identify tungsten bronze oxides and guide bismuth and germanium substitutions that improved permittivity and thermal stability. The resulting Ba4(Nd0.5Bi0.5)9.33(Ti0.99Ge0.01)18O54 ceramic combined high permittivity, very low dielectric loss, and near-zero temperature dependence, and was used to make compact prototype chip capacitors.
A research team led by Professor Ji-Sang Park of the Sungkyunkwan University, SKKU Advanced Institute of Nanotechnology (SAINT), in collaboration with Professor Yong-Young Noh's team at Pohang University of Science and Technology (POSTECH) and the teams of Professors Ao Liu and Huihui Zhu at the University of Electronic Science and Technology of China (UESTC), has successfully overcome the critical oxidation problem of conventional eco-friendly, lead-free perovskite semiconductors and developed a p-type transistor with world-class performance.
A research team has developed a fluorescent probe that changes from red to green as it detects uranyl ions, a form of uranium that can contaminate water. Made from europium, zinc and an organic ligand, the probe measured uranyl concentrations down to 51 nanomolar in laboratory tests. A smartphone camera could also read the color change, suggesting a route toward portable water monitoring where laboratory instruments are unavailable. Tests with lake water and seawater showed promising accuracy, although broader testing in complex environmental samples is still needed.
As the "heart" of an aero-engine, the performance and reliability of the fuel pump directly affect flight safety.
A new project led by the Department of Energy's SLAC National Accelerator Laboratory brings together scientists and engineers from national labs, universities and industry to build a platform that transforms today's complex research environment into self-driving laboratories controlled by Super Intelligence (SI) systems that can evaluate and respond autonomously to rapidly changing needs.
A team co-led by researchers at the University of California San Diego has developed a new way to make perovskite solar cells — a promising next-generation solar technology — more efficient and durable.
Traditional photodetectors rely on fixed designs: responsivity, dynamic range and spectral selectivity are set during fabrication. Silicon, the dominant material, has a relatively fixed bandgap and limited carrier mobility, making broadband, high-speed and multifunctional detection difficult.
Most of today's computer chips — also sometimes known as conventional integrated circuits — use electrons to deliver their signals via semiconductor materials and metallic components.
Researchers developed a titanium-hydrogel platform that combines silane-based chemical bonding with TPMS mechanical interlocking to create a strong interface between rigid Ti6Al4V components and a PVA/PAAm hydrogel. In laboratory tests, the system maintained low-friction hip articulation over 500,000 loading cycles, absorbed impact energy in an artificial disc prototype, and supported controlled antibiotic release.
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