For decades prior to the advent of the transistor, the amplification of electrical signals was achieved through the use of vacuum tubes. Invented in 1904 by British electrical engineer John Ambrose ...

Scientists show that transistors can be made ofa wide range mateirals including metals thus opening up the possiblity of novel devices structures not possible with conventional semiconductors.

An electrical switch made from conductive wood could become a building block for future electronic devices embedded within living trees and other plants. “There is an emerging research field called ...