Energy & Green Tech
A team led by Prof. Hu Linhua at the Hefei Institutes of Physical Science of the Chinese Academy of Sciences (CAS) has recently developed a type of self-healing perovskite solar cell by functional combination of polyvinylpyrrolidone ...
Dec 28, 2021
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46
Business
A California semiconductor company took its stock public Wednesday—straight into the maw of a global chip shortage that could pose either a threat or an opportunity.
Oct 21, 2021
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183
Engineering
More than 90 years ago, physicist Eugene Wigner predicted that at low densities and cold temperatures, electrons that usually zip through materials would freeze into place, forming an electron ice, or what has been dubbed ...
Oct 5, 2021
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21
Engineering
Greenhouses can allow the growth of high quality crops in otherwise unproductive areas. Important, as the world population is growing and the land area appropriate for farming is limited. One thing that is still difficult ...
Apr 8, 2021
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6
Energy & Green Tech
All-solid-state batteries are next-generation batteries that can simultaneously improve the stability and capacity of existing lithium batteries. The use of non-flammable solid cathodes and electrolytes in such batteries ...
Jan 11, 2021
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7
Electronics & Semiconductors
Researchers at Osaka University demonstrated a new technique for modifying the hydrogen concentration of resistors by applying an electrical voltage. The generated electric field drove the diffusion of hydrogen ions deeper ...
Dec 9, 2020
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Energy & Green Tech
"When eco-friendly, inexpensive, versatile, and efficient solar cells are developed, all thermal and nuclear power plants will disappear, and solar cells installed over the ocean or in outer space will power our world," says ...
Oct 26, 2020
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4
Energy & Green Tech
Chemists regularly use high temperatures to make things happen, but sometimes keeping cool can work better. Researchers at KAUST are discovering that a low-temperature approach can make better single crystals for use in solar ...
Jun 1, 2020
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7
Energy & Green Tech
A new method could enable researchers to fabricate more efficient and longer lasting perovskite solar cells, LEDs and photodetectors. By growing thin perovskite films on substrates with different compositions, engineers at ...
Jan 9, 2020
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2
Energy & Green Tech
Researchers of Karlsruhe Institute of Technology (KIT) and cooperating institutions studied structural changes during the synthesis of cathode materials for future high-energy lithium-ion batteries and obtained new major ...
Dec 10, 2019
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A crystal or crystalline solid is a solid material whose constituent atoms, molecules, or ions are arranged in an orderly repeating pattern extending in all three spatial dimensions. The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification. The word crystal is derived from the Ancient Greek word κρύσταλλος (krustallos), meaning both “ice” and “rock crystal”, from κρύος (kruos), “icy cold, frost”.
Most common metals are polycrystals. Crystals are often symmetrically intergrown to form crystal twins.
This text uses material from Wikipedia, licensed under CC BY-SA
