Energy & Green Tech
An inexpensive thermoelectric device harnesses the cold of space without active heat input, generating electricity that powers an LED at night, researchers report September 12 in the journal Joule.
Sep 12, 2019
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1622
Energy & Green Tech
In the switch to "greener" energy sources, the demand for rechargeable lithium-ion batteries is surging. However, their cathodes typically contain cobalt—a metal whose extraction has high environmental and societal costs. ...
Jan 18, 2024
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88
Engineering
The output of wind turbines can rise or fall by 50% in a matter of seconds. Such fluctuations in the megawatt range put a strain on both power grids and the turbines themselves. A new study by researchers from the University ...
Sep 19, 2023
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121
Electronics & Semiconductors
You may not have heard of piezoelectric materials, but odds are, you have benefitted from them.
May 8, 2023
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523
Energy & Green Tech
EPFL researchers have built a pilot-scale solar reactor that produces usable heat and oxygen, in addition to generating hydrogen with unprecedented efficiency for its size.
Apr 17, 2023
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1668
Hardware
A computing device that uses tiny magnetic swirls to process data has been trained to recognize handwritten numbers. Developed by RIKEN researchers, the device shows that miniature magnetic whirlpools could be useful for ...
Feb 9, 2023
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133
Energy & Green Tech
Engineers in Melbourne have used sound waves to boost production of green hydrogen by 14 times, through electrolysis to split water.
Dec 12, 2022
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2501
Electronics & Semiconductors
Mesoscopic dye-sensitized solar cells (DSCs) were invented in 1990s by Brian O'Regan and Michael Grätzel, taking on the latter's name—the world-famous Grätzel cells. DSCs convert light into electricity through photosensitizers—dye ...
Oct 26, 2022
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192
Engineering
A multifunctional molecule that plugs various atomic-scale defects in perovskite solar materials can significantly boost the longevity and electrical output of this promising solar technology, KAUST researchers have shown.
Aug 18, 2021
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617
Energy & Green Tech
Google talked about the feats of London-based DeepMind on Tuesday—telling the world that a DeepMind system could help make the use of wind farms to produce energy more viable.
