Energy & Green Tech

Scientists design ultrastable, high-energy-density Zn–Mn battery

A research team led by Prof. Yan Lifeng from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has designed a water-based nanomicellar electrolyte by using methylurea (Mu). ...

Electronics & Semiconductors

Volcanic spring water helps researchers make plastic electronics

When you think of how to make electronic components, water probably doesn't top your list of raw materials. Nevertheless, in a study recently published in Journal of Water Chemistry and Technology, researchers from the University ...

Energy & Green Tech

Tuning thermoelectric materials for efficient power generation

In times when energy is scarce and sustainable ways of energy production are being explored, thermoelectric materials are being considered for power generation to transform waste heat into electricity. However, to make this ...

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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.

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