Zinc
-
Nanotechnology
The road to new quantum devices: electrically defined quantum dots in zinc oxide
Structure of zinc oxide (ZnO) device. A two-dimensional electron gas (2DEG) is formed at the (Mg, Zn)O/ZnO interface. By applying voltage to the gate electrode, electrons can be confined within the quantum dot. (b) SEM image of the fabricated ZnO quantum dot device. Quantum dots are generated in the circled area. Credit: Quoted from Nature Communications (2024). DOI: 10.1038/s41467-024-53890-2 Researchers…
Read More » -
Space & Cosmos
How did the building blocks of life reach Earth? Zinc fingerprints in meteorites provide clues
An iron meteorite from the core of a molten planetesimal (left) and a chondrite meteorite from a “primitive” unmolten planetesimal (right). Credit: Rayssa Martins/Ross Findlay Researchers used the chemical fingerprint of zinc in meteorites to determine the origin of volatile elements on Earth. The results suggest that without the “unmolten” asteroids, there may not have been enough of these compounds…
Read More »