Walter Schottky

Walter Schottky

H419/0313 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 51.4MB

Downloadable file size: 4.4MB

Price image Pricing

Please login to use the price calculator


Credit: SCIENCE PHOTO LIBRARY

Caption: Walter Schottky. Historical portrait of the Swiss-German physicist Walter Schottky (1886-1976). Born in Zurich, Switzerland, he studied and worked in Germany on solid-state physics. In 1914, he observed changes in the emission of electrons from heated materials (thermionic emission) in a vacuum under a changing electric field. This is known as the Schottky effect. Replacing the vacuum with a semiconducting material led to the Schottky barrier diode. Schottky originated the concepts of electron "holes" in semiconductors (1929) and ion vacancies (Schottky defects) in crystal lattices (1935). In 1918, he discovered the superheterodyne principle now used in all radios and televisions.

Release details: Model release not available. Property release not required.

Keywords: black-and-white, defect, diode, effect, electronics, german, historical, history, male, man, physicist, portraits, schottky, semiconductors, solid-state physics, superheterodyne principle, surname s, swiss, walter

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.