Engineering
University of Minnesota Twin Cities researchers, along with a team at the National Institute of Standards and Technology (NIST), have developed a breakthrough process for making spintronic devices that has the potential to ...
Mar 20, 2023
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171
Engineering
In recent years, electronics engineers have been trying to identify materials that could help to shrink the size of transistors without compromising their performance and energy efficiency. Low-dimensional semiconductors, ...
Electronics & Semiconductors
Solar energy is critical for a clean-energy future. Traditionally, solar energy is harvested using silicon—the same semiconductor material used in everyday electronic devices. But silicon solar panels have drawbacks: for ...
Jul 10, 2024
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27
Electronics & Semiconductors
To make computer chips, technologists around the world rely on atomic layer deposition (ALD), which can create films as fine as one atom thick. Businesses commonly use ALD to make semiconductor devices, but it also has applications ...
Jun 25, 2021
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277
Electronics & Semiconductors
Professor Soon-Yong Kwon in the Department of Materials Science and Engineering and the Graduate School of Semiconductor Materials and Devices Engineering at UNIST, in collaboration with Professor Zonghoon Lee, has embarked ...
Aug 25, 2023
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91
Engineering
Silicon photodiodes are semiconductor devices commonly used to detect visible light and measure its intensity, color and position. The fact that these devices are made of silicon has both advantages and disadvantages.
Electronics & Semiconductors
IBM has unveiled a breakthrough in semiconductor design and process with the development of the world's first chip with 2 nanometer (nm) nanosheet technology. Semiconductors play critical roles in everything from computing, ...
May 7, 2021
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84
Electronics & Semiconductors
Researchers at the Chinese Academy of Sciences have recently fabricated a transverse tunneling field-effect transistor. This is a semiconductor device that can be used to amplify or switch electrical power or signals, operating ...
Energy & Green Tech
Scientists in Australia and the United States have been able to 'upconvert' low energy light into high energy light, which can be captured by solar cells, in a new way, with oxygen the surprise secret ingredient. The results ...
Jul 20, 2020
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710
Electronics & Semiconductors
A team of researchers, led by Professor Ji-Hyun Jang from the School of Energy and Chemical Engineering at UNIST has achieved a significant breakthrough in photoelectrode development.
Sep 6, 2023
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57
A semiconductor is a material that has a resistivity value between that of a conductor and an insulator. The conductivity of a semiconductor material can be varied under an external electrical field. Devices made from semiconductor materials are the foundation of modern electronics, including radio, computers, telephones, and many other devices. Semiconductor devices include the transistor, solar cells, many kinds of diodes including the light-emitting diode, the silicon controlled rectifier, and digital and analog integrated circuits. Solar photovoltaic panels are large semiconductor devices that directly convert light energy into electrical energy. In a metallic conductor, current is carried by the flow of electrons. In semiconductors, current can be carried either by the flow of electrons or by the flow of positively-charged "holes" in the electron structure of the material.
Silicon is used to create most semiconductors commercially. Dozens of other materials are used, including germanium, gallium arsenide, and silicon carbide. A pure semiconductor is often called an “intrinsic” semiconductor. The conductivity, or ability to conduct, of semiconductor material can be drastically changed by adding other elements, called “impurities” to the melted intrinsic material and then allowing the melt to solidify into a new and different crystal. This process is called "doping".
This text uses material from Wikipedia, licensed under CC BY-SA
