Semiconductor scientists discover effect that was thought impossible

Tuesday, April 23, 2019 - 08:00 in Physics & Chemistry

A physical effect known as superinjection underlies modern light-emitting diodes (LEDs) and lasers. For decades this effect was believed to occur only in semiconductor heterostructures—that is, structures composed of two or more semiconductor materials. Researchers from the Moscow Institute of Physics and Technology have found superinjection to be possible in homostructures, which are made of a single material. This opens up entirely new prospects for the development of light sources. The paper came out Feb. 21 in the journal Semiconductor Science and Technology.

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