Jan 13, 2025 (Nanowerk News) One supermassive black hole has kept astronomers glued to their scopes for the last several years. First came a surprise disappearance, and now, a precarious spinning act. The black hole in question is 1ES 1927+654, which is about as massive as a million suns and...
Boosting terahertz signal processing with multilayered graphene designs
Jan 13, 2025 (Nanowerk News) Nonlinear optical processes in the technologically important terahertz (THz) spectral range have gained increasing attention for their potential to revolutionize fields such as wireless communication and signal processing. Among the most extreme phenomena in nonlinear optics is harmonic generation, a process converting optical energy into...
Nanothermometers enable real-time temperature monitoring at molecular scale
Jan 13, 2025 (Nanowerk News) Technological advancements in the simultaneous observation of ultrafine structures and temperature changes in materials are paving the way for the development of advanced materials. This innovation is expected to facilitate the analysis of the correlation between specific structures and the thermodynamic properties of samples. A...
Liquid crystal-powered metasurfaces enable switchable color displays and security features
Jan 13, 2025 (Nanowerk Spotlight) The screens we use every day – from smartphones to televisions – work by either filtering white light or creating their own illumination. These approaches have served well but face inherent limitations in displaying rich, vivid colors while keeping power consumption low. Nature offers an...
New study unveils breakthrough in understanding cosmic particle accelerators
Jan 13, 2025 (Nanowerk News) Scientists have come a step closer to understanding how collisionless shock waves – found throughout the universe – are able to accelerate particles to extreme speeds. These shock waves are one of nature's most powerful particle accelerators and have long intrigued scientists for the role...
Revealing the ‘true colors’ of a single-atom layer of metal alloys
Jan 11, 2025 (Nanowerk News) Researchers Ibuki Taniuchi, Ryota Akiyama, Rei Hobara, and Shuji Hasegawa of the University of Tokyo have demonstrated that the direction of the spin-polarized current can be restricted to only one direction in a single-atom layer of a thallium-lead alloys when irradiated at room temperature. The...
Flexible electronics integrated with paper-thin structure for use in space
Jan 11, 2025 (Nanowerk News) Being lightweight is essential for space structures, particularly for tools used on already small, lightweight satellites. The ability to perform multiple functions is a bonus. To address these characteristics in a new way, researchers at the University of Illinois Urbana-Champaign successfully integrated flexible electronics with...
Interfacial coupling alters optical properties in 2D magnetic/graphene devices
Jan 10, 2025 (Nanowerk News) A research group led by Prof. SHENG Zhigao from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, recently discovered the disappearance of nonreciprocal second harmonic generation (SHG) in MnPSe3 when integrated into a two-dimensional (2D) antiferromagnetic MnPSe3/graphene heterojunction. The research, published...
New doping control method boosts nanocrystal semiconductor performance
Jan 10, 2025 (Nanowerk News) Professor Jiwoong Yang and his research team at the Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST; President Kunwoo Lee) successfully developed a new technology to control doping at the nucleus (seed) phase to increase the performance of semiconductor...
Efficient energy transport through covalent organic frameworks
Jan 10, 2025 (Nanowerk News) An interdisciplinary research team from LMU, the Technical University of Munich (TUM), and the University of Oxford has employed novel spectroscopic techniques to investigate the diffusion of excited states in so-called covalent organic frameworks (COFs). These modular materials can be adapted for desired properties through...