A new framework for cross-scale Raman thermometry enables precise temperature mapping from the micrometer to the single-molecule scale. By mastering non-equilibrium energy statistics and decoupling probe interference, this work paves the way for the intelligent thermal design of next-generation semiconductors at their ultimate physical limits.

Oxidative addition is often carried out using transition metals and is challenging to perform at centers of more abundant main-group elements, particularly group 13 elements. Researchers at The University of Osaka, led by Takuya Kodama, achieved oxidative addition of an aryl iodide to a group 13 (gallium) center. The reaction is initiated by visible light. The reaction proceeds via a novel mechanism, photoinduced disproportionation, whereby photoexcited gallium exchanges electrons with ground-state gallium.

Chemist Focuses on Developments Paving the Way to the Quantum Internet – European Research Council is Founding “Hilbert Molecules” Project with roughly EUR 2.5 million

Two-dimensional (2D) perovskites have emerged as promising optoelectronic materials. However, their practical and rational design is hindered by poor understanding of the relationship between the screening environment and excitonic properties. In a new study, researchers developed a new method to isolate the effects of the screening environment, offering a new predictive model for excitonic properties of 2D perovskites. This will contribute to more stable and tunable optoelectronic technologies.

Osaka Metropolitan University researchers developed a silica capsule–based technology that enables easy separation and reuse of colorants from plastics, overcoming limitations of conventional recycling. This approach allows repeated upcycling into high-quality, vividly colored materials with significantly lower energy consumption.

Single ions trapped in miniaturised chip traps can be used for quantum computers and quantum sensors. So far, however, stray electromagnetic fields on the chip have made reliable application difficult.

Researchers have now developed a technique whereby a single ion can be positioned anywhere above the chip and can very precisely measure these fields at any point.

In the future, surface materials for chips can be better characterised in this way and manufacturing processes can be optimised.