2019-04-29

New Research of Semiconductor Homostructures can Lead to LED Technology Breakthrough

Superinjection is a physical effect that underlies modern LEDs and lasers and was believed to occur only in semiconductor heterostructures in the past. Recently, researchers from the Moscow Institute of Physics and Technology (MIPT) have found that the effect can also occur in homostructures, which opens up new prospects for the development of light sources. In the 1960’s, Zhores Alferov and Herbert Kroemer proposed to use heterostructures, which consist of two or more complementary semiconductors to generate wider bandgaps, enabling the concentration of electrons ...
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For three decades, white LEDs have depended on rare earth materials such as yttrium aluminum garnet (YAG) layered onto a blue LED chip (Figure 1). Seoul Viosys Co., Ltd. (KOSDAQ: 092190) today announced that it has broken that dependence. It h... READ MORE

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