—Single-Atom Transistor “Nanoelectronics: Device’s performance bodes well for quantum computing” In work that could advance the development of quantum computers, researchers have created a transistor that consists of a single atom positioned precisely between two electrodes in a silicon substrate. Quantum computers could perform some calculations not possible on current computers, such as solving the Schrödinger equation for large molecules.
by Stu Borman | February 27, 2012
As transistor dimensions have shrunk in increasingly powerful computer chips, manufacturers have replaced the traditional silicon dioxide insulator with more insulating materials, including hafnium dioxide and hafnium silicate. However, no one had tried these materials in perovskite transistors, so a team led by Aditya D.
by Prachi Patel, special to C&EN | November 25, 2019
Birth of the transistor Physicist Julius Edgar Lilienfeld proposed an alternative to the vacuum tube in 1926: the transistor. He couldn’t build one at that time, because researchers didn’t have access to the high-quality semiconductors that are the heart of the transistor. Transistors typically use three metal electrodes and a semiconducting channel.
by Katherine Bourzac | July 10, 2021
And Transistors “Two reports show that the promising carbon supermolecule can be prepared in larger films and doped with electrons to make transistors” Two new reports on graphene show that the electronically promising supermolecule, composed of a single layer of carbon atoms linked like chicken wire, can be prepared in large, uniform films and can be doped with electrons to make transistors.
by Elizabeth K. Wilson | May 11, 2009