Electronics & Semiconductors

Movies of ultrafast electronic circuitry in space and time

Researchers at the University of Konstanz have successfully filmed the operations of extremely fast electronic circuitry in an electron microscope at a bandwidth of tens of terahertz. The study is published in Nature Communications.

Electronics & Semiconductors

Bulky additives could make cheaper solar cells last longer

An insight into preventing perovskite semiconductors from degrading quickly, discovered at the University of Michigan, could help enable solar cells estimated to be two to four times cheaper than today's thin-film solar panels.

Electronics & Semiconductors

Stability of perovskite solar cells reaches next milestone

Perovskite semiconductors promise highly efficient and low-cost solar cells. However, the semi-organic material is very sensitive to temperature differences, which can quickly lead to fatigue damage in normal outdoor use. ...

Energy & Green Tech

Pivotal battery discovery could impact transportation and the grid

Battery-powered vehicles have made a significant dent in the transportation market. But that market still needs lower cost batteries that can power vehicles for greater ranges. Also desirable are low-cost batteries able to ...

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Electron microscope

An electron microscope is a type of microscope that uses a particle beam of electrons to illuminate a specimen and create a highly-magnified image. Electron microscopes have much greater resolving power than light microscopes that use electromagnetic radiation and can obtain much higher magnifications of up to 2 million times, while the best light microscopes are limited to magnifications of 2000 times. Both electron and light microscopes have resolution limitations, imposed by the wavelength of the radiation they use. The greater resolution and magnification of the electron microscope is because the wavelength of an electron; its de Broglie wavelength is much smaller than that of a photon of visible light.

The electron microscope uses electrostatic and electromagnetic lenses in forming the image by controlling the electron beam to focus it at a specific plane relative to the specimen. This manner is similar to how a light microscope uses glass lenses to focus light on or through a specimen to form an image.

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