Germanium promises better opto-electronic properties than tin for kesterite solar cells. by Helmholtz Association of German Research CentresHelmholtz Association of German Research Centres ...

1942-1943. Semiconductors had been discovered in the early 1930s, but not much was known about them. While scientists weren't sure how they worked, they were certain that semiconductors were useful.

3rd and final course in the Semiconductor Devices SpecializationInstructor: Wounjhang Park, Ph.D., ProfessorThis course presents in-depth discussion and analysis of metal-oxide-semiconductor ...

Duration: 4 hours. In this module on metal-semiconductor contacts, we will cover the following topics: Device structure, Equilibrium energy band diagram, Electrostatic analysis, Energy band diagram ...

Clarification of Energy Band Diagram of Single-Crystalline Gallium Oxides Summary Gallium oxide (Ga 2 O 3 ), which is attracting attention as a next-generation wide-band-gap semiconductor device ...

The U.S., by contrast, has no current domestic source of the metal, according to the U.S. Geological Survey. China was also the largest germanium producer as of 2021, producing about 95 metric tons.

Beijing will impose export controls on two rare elements essential for manufacturing semiconductors, in apparent retaliation after the United States and Europe restricted chip exports to China.

The Chinese government has announced buyers of two metals used in computer chips and solar panels will need to apply for export permits, starting on Aug. 1. The metals, gallium and germanium, are ...