Steric hindrance of long-chain ligands leads to abundant unpassivated dangling bonds on quantum dots (QDs), which significantly impair the efficiency and operational stability of QD light-emitting diodes (QLEDs), especially in ultra-small pixel devices. Professors Fushan Li and Hailong Hu at Fuzhou University have pioneered a "ligand reconstruction" strategy using zirconium acetylacetonate (Zr(acac)₄) to precisely repair the surface defects of QDs. This reconstruction strategy markedly enhances the efficiency and operational stability of QLEDs, and the resultant record-breaking performance metrics lay a solid foundation for the commercialization of high-resolution, high-performance QLED technology.

A highly integrated phased-array wireless integrated circuit developed at Institute of Science Tokyo, Japan, enables 144 Gbps dual-polarized multiple-input multiple-output (MIMO) communication in the 150 GHz sub-terahertz band, bringing practical 6G devices a step closer to reality. By developing a highly integrated phased-array transceiver with a significantly smaller circuit footprint, the research paves the way for future applications such as immersive extended reality and remote healthcare services.

This research shows a new way to control light at extremely high speeds using ultra-thin silicon metasurfaces. By carefully designing how light passes through them, the team achieved strong and fast control over a wider range of colours than previously possible. This breakthrough helps overcome a key limitation in current technology and could support faster internet, improved data processing, and future light-based computing systems.

Physicists at the University of Würzburg and the Würzburg-Dresden Cluster of Excellence ctd.qmat have realized the world’s first continuously operating maser based on the semiconductor silicon carbide. This new technology could pave the way for compact microwave sources, low-noise amplifiers, and highly sensitive magnetic field sensors – and may even find future applications in space technology.

An international team of researchers has succeeded in producing atomic quantum gas mixtures with an unprecedented particle flux. In the journal Nature Communications, the scientists report on experiments conducted with the MAIUS-B apparatus, in which Bose-Einstein condensates consisting of two different atomic species – rubidium and potassium – were generated and studied under microgravity conditions in the Einstein Elevator at Leibniz University Hannover, Germany. A key contribution to this achievement came from a technological development at Johannes Gutenberg University Mainz: the highly sophisticated and compact optical system used to control the atoms.

The discovery of twisted graphene moiré superlattices has opened new avenues for exploring low-dimensional quantum states of matter. This review summarizes recent experimental and theoretical advances in twisted graphene systems, focusing on electron correlation, unconventional superconductivity, and topological states emerging from moiré flatbands, while highlighting their underlying mechanisms, characterization techniques, key open questions and future research directions.

Electrochemical chloride ion removal is essential for clean water and environmental protection, yet its practical application is hindered by the sluggish kinetics, especially using high-mass-loading electrodes. Conventional extrinsic modifications, such as conductive additives or structural design, exhibit constrained effectiveness. Here, we report an intrinsic enhancement strategy through heteroatom doping-induced dual defects engineering, demonstrated by the successful synthesis of fluorine-doped copper(I) phosphide with phosphorus vacancies (F-Cu₃P_V) via molten salt treatment. Based on density functional theory calculations and experimental results, F doping caused lattice distortion, generating P vacancies to form dual defects. These defects effectively modulated intrinsic electron redistribution, resulting in improved electrical conductivity, enhanced adsorption capability, and reduced chloride ion diffusion energy barriers. Therefore, electron transfer and ion diffusion kinetics were significantly accelerated, leading to superior electrochemical performance. Resultantly, the F-Cu₃P_V electrode performed exceptional electrochemical chloride ion removal performance with superior areal deionization capacity (3.16 ± 0.02 mg cm⁻²) and a remarkably rapid areal deionization rate (0.106 ± 0.001 mg cm⁻² min⁻¹), as well as outstanding cycling stability (95.65% retention after 70 cycles). This work elucidates electron redistribution via heteroatom doping-induced dual defects as a viable pathway to overcome the intrinsic kinetic bottleneck for high-performance electrochemical chloride ion removal.

Researchers at the Technical University of Berlin have developed a semiconductor quantum photonic platform that generates high-quality quantum light with unprecedented scalability. By combining precisely positioned quantum emitters with advanced nanophotonic resonators, the work brings manufacturable quantum communication and photonic computing technologies significantly closer to reality.