Understanding photogenerated carrier transport in 2D perovskites, especially surface states, is challenging with conventional time-resolved techniques. Scientists at KAUST utilized scanning ultrafast electron microscopy (SUEM) with groundbreaking surface sensitivity to disclose carrier diffusion rates of ~30 cm²/s for n=1, 180 cm²/s for n=2, and 470 cm²/s for n=3, which are notably higher than bulk. This highlights the SUEM’s potential for advancing the understanding of carrier dynamics. Density Functional Theory (DFT) confirms broader carrier transmission channels at the surface, offering key insights for optimizing 2D perovskite optoelectronic devices.

In a paper published in National Science Review, a research team from the Chinese Academy of Sciences investigated impact melt rocks from the Chang'e-6 lunar soils and determined that the Moon's South Pole-Aitken basin formed 4.25 billion years ago. China’s Chang'e-6 mission, launched on May 3, 2024, landed on June 2, and returned on June 25, collecting 1935.3 grams of lunar soil samples – the first ever returned from the Moon's far side.

China has achieved a significant milestone in space science with the recent completion and national acceptance of the Chinese Meridian Project (CMP) Phase II on March 21. This project represents the world’s first comprehensive ground-based monitoring network spanning the entire Sun-Earth space environment, extending from the solar atmosphere to near-Earth space.

A modulator developed by researchers from ETH Zurich has broken the terahertz mark. The ultrafast component efficiently transmits large volumes of data into the fibre-optic network in a short space of time.