Turning single 2D crystal into a complete high-performance transistor

https://www.eurekalert.org/news-releases/1147912

Summary: Engineers developed modular chemical substitution method converting individual atomic layers tungsten diselenide into semiconducting, insulating, semimetallic regions on single sheet. Directly transforming selected zones atomic crystals into complete field-effect transistors eliminates physical transfer defects and contact resistance barriers, offering semiconductor foundries clear fabrication path toward ultralow-power, vertically integrated 3D microchips within few years.