Timber! The World’s First Wooden Transistor

Transistors inside modern computer chips are several nanometers across, and switch on and off at hundreds of gigahertz. Organic electrochemical transistors, made for biodegradable applications, are milimeters in size and switch at kilohertz rates. The world’s first wooden transistor, made by a collaboration of researchers through the Wallenberg Wood Science Center and reported this week in Publications of the National Academy of Sciences, is 3 centimeters across and switches at less than one Hertz. While it may not be powering any wood-based supercomputers anytime soon, it does hold out promise for specialized applications including biodegradable computing and implanting in into living plant material.