A 20 kW laser system for producing high-purity crystals

High-purity semiconductor crystals are required for power electronics in electric cars or in photovoltaics. When such crystals reach a diameter of 2 inches, they become relevant for industrial applications.

Electronics & Semiconductors

Using sound to test devices, control qubits

Acoustic resonators are everywhere. In fact, there is a good chance you're holding one in your hand right now. Most smart phones today use bulk acoustic resonators as radio frequency filters to filter out noise that could ...


Protons fix a long-standing issue in silicon carbide electronics

Silicon carbide (SiC) is a semiconductor material that outperforms pure silicon-based semiconductors in several applications. Used mostly in power inverters, motor drives, and battery chargers, SiC devices offer benefits ...

Energy & Green Tech

New solar panels from solar panel waste

Solar energy is good news for planet Earth—but solar panels are not as climate-friendly as they should be. Researcher Martin Bellmann is using what he calls the "black gold" waste materials from solar panel manufacture ...

Energy & Green Tech

New, efficient phase change microcapsules for storing solar energy

It is no news that society's dependence on non-renewable fossil fuels has led to the ongoing global energy and climate crisis. The emissions from coal, natural gas, and petroleum-based fuel are major contributors to air pollution ...


MOCVD tool to advance gallium-oxide semiconductor research

Cornell engineers and materials scientists have added a state-of-the-art tool to their suite of laboratory equipment to help in the study of gallium oxide, a material commonly viewed as the heir apparent to silicon carbide ...

page 1 from 2

Silicon carbide

Silicon carbide (SiC), also known as carborundum, is a compound of silicon and carbon with a chemical formula SiC. It occurs in nature as the extremely rare mineral moissanite. Silicon carbide powder has been mass-produced since 1893 for use as an abrasive. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics which are widely used in applications requiring high endurance, such as car brakes and ceramic plates in bulletproof vests. Electronic applications of silicon carbide as light emitting diode and detector in early radios have been demonstrated around 1907, and nowadays SiC is widely used in high-temperature semiconductor electronics. Large single crystals of silicon carbide can be grown by the Lely method; they can be cut into gems known as "synthetic moissanite". Silicon carbide with high surface area can be produced from SiO2 contained in plant material.

This text uses material from Wikipedia, licensed under CC BY-SA