![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/5/57/SET_schematic2.jpg/640px-SET_schematic2.jpg&w=640&q=50)
Single-electron transistor
From Wikipedia, the free encyclopedia
A single-electron transistor (SET) is a sensitive electronic device based on the Coulomb blockade effect. In this device the electrons flow through a tunnel junction between source/drain to a quantum dot (conductive island). Moreover, the electrical potential of the island can be tuned by a third electrode, known as the gate, which is capacitively coupled to the island. The conductive island is sandwiched between two tunnel junctions[1] modeled by capacitors, and
, and resistors,
and
, in parallel.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/5/57/SET_schematic2.jpg/640px-SET_schematic2.jpg)