Wafer-scale 2D indium selenide semiconductors achieve record performing low-power chips for AI, autonomous driving, and smart terminals

https://techxplore.com/news/2025-07-wafer-scale-2d-inse-semiconductors.html

"ultra-high electron mobility, room temperature near-Boltzmann-limit subthreshold solid–liquid–solid growth swing, low effective mass, high thermal velocity, suitable bandgap, more energy-efficient, smaller... crystalline large-area wafer-scale integration elusive due to difficulty maintaining 1:1 atomic ratio between indium/ selenium, overcome using solid–liquid–solid conversion... amorphous magnetron sputtered onto sapphire substrate, low-melting-point indium encapsulation, sealed inside quartz cavity, heated to 550°C"