Quantum meta-devices: Miniaturizing the future of photonics
Peer-Reviewed Publication
Updates every hour. Last Updated: 28-Oct-2025 01:11 ET (28-Oct-2025 05:11 GMT/UTC)
Researchers have reviewed how meta-devices can miniaturize and integrate quantum photonic systems, enabling advanced applications in quantum imaging, communication, and computing. These ultra-compact devices promise to make quantum technology more practical and scalable.
In a significant advancement in sustainable chemistry, researchers are exploring cutting-edge developments in carbonaceous-supported catalysts for converting CO2 into cyclic carbonates. The study, titled "C4C Recent Developments: Carbonaceous-Supported Catalysts for CO2 Conversion into Cyclic Carbonates," is led by Prof. Nader Ghaffari Khaligh from the Nanotechnology and Catalysis Research Center at the Institute for Advanced Studies (IAS), Universiti Malaya in Kuala Lumpur, Malaysia. This research offers a detailed exploration of innovative catalysts that promise to transform CO2 into valuable chemicals, driving progress in sustainable chemistry.
Deep-blue light-emitting diodes (LEDs) that satisfy the Rec.2020 color standard are essential for next-generation ultra-high-definition displays. To this end, researchers in China have developed a hydrobromic acid-assisted ligand passivation strategy that markedly improves the performance of CsPbBr3 nanoplatelet-based LEDs. This advance enables efficient deep-blue electroluminescence with color coordinates of (0.136, 0.046), fully meeting the Rec.2020 specification. The work highlights the strong potential of perovskite materials for the commercialization of next-generation ultra-high-definition display technologies.
Transition metal carbides are prized for their exceptional hardness and stability under extreme conditions, but they are notoriously brittle. This intrinsic trade-off between hardness and toughness has long hindered their application in demanding fields. A research team has developed a novel strategy that uses nitrogen doping to fundamentally re-engineer the microstructure of (Ti, Zr)C ceramics. This approach unleashes a powerful toughening mechanism during a process called spinodal decomposition, resulting in a remarkable simultaneous increase of approximately 40% in hardness and 50% in toughness. This breakthrough provides a new blueprint for designing next-generation ceramics with superior reliability.
Breast cancer is increasingly affecting younger women globally, often before the screening guidelines recommend testing age. Young patients with breast cancer have a worse prognosis than older women.
Early screening through AI-enhanced mammography and high-throughput sequencing-powered genetic tests can identify high-risk individuals, offering a critical time frame for prevention and intervention.
Researchers have developed a manganese-based, cobalt-free lithium-excess layered cathode that significantly advances the performance of lithium-ion batteries. By employing an O2-type honeycomb structure, the material demonstrates high reversible capacity, long cycling stability, and improved thermal safety. This design achieves ~284 mAh g⁻¹ with an energy density of 956 Wh kg⁻¹, while maintaining about 70% capacity after 500 cycles in full cells. Unlike traditional cathodes prone to oxygen loss and structural degradation, the new composition stabilizes the oxygen redox process and suppresses phase transitions. These findings mark a critical step toward sustainable, high-capacity, and long-lasting lithium-ion batteries for next-generation applications.
Converting carbon dioxide into fuels and chemicals using renewable energy is a promising route to reduce greenhouse gas emissions and recycle carbon. Yet the stability of CO2 molecules makes their activation both energy-intensive and inefficient when relying on a single energy input. Recent research highlights the power of coupling multiple energy sources—such as light with heat, electricity with heat, or plasma with thermal energy—to generate synergistic effects that improve efficiency, selectivity, and stability. By integrating these complementary modes of energy, synergetic catalytic systems open opportunities to overcome barriers in CO2 reduction and move closer to practical, scalable carbon recycling technologies.