Advancing transistor technology with triply-degenerate semimetal PtBi₂

https://phys.org/news/2024-05-advancing-transistor-technology-triply-degenerate.html

"facilitate van der Waals contacts simplifying fabrication, leading to air stability, long-term performance, mobility... PtBi2 flakes as interlayer contact between metal electrodes, WS2 semiconductor... switching ratio >106, average mobility 85 cm²V⁻¹s⁻¹... optimize interplay between miniaturization, performance... reduces Schottky barrier, avoids Fermi pinning effect...uses non-destructive van der Waals transfer, maintaining material and interface integrity... energy-efficient, highly functional transistors, optoelectronics, spintronics"

Related: A two-step anion-exchange strategy via a WS2 template enables the 1-inch wafer-scale growth of metastable quasi-1D van der Waals material W6Te6
https://www.eurekalert.org/news-releases/1138886