Category Technology/Electronics

Supercapacitors Turbocharged by Laxatives

Illustration of detergent-like ionic liquids on an electrode surfaceXianwen Mao/Massachusetts Institute of Technology

An international team of scientists, including a professor of chemistry from the University of Bristol, has worked out a way to improve energy storage devices called supercapacitors, by designing a new class of detergents chemically related to laxatives. Their paper, published in the journal Nature Materials, explains why these detergents, called ionic liquids, are better electrolytes than current materials and can improve supercapacitors.

Currently, aqueous and organic electrolytes are used, but more recently, researchers and manufacturers have been testing ionic liquids instead to boost performance...

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This Designer Clothing Lets Users turn on Electronics while Turning Away Bacteria

fabric innovation
Purdue waterproof, breathable and antibacterial self-powered clothing is based on omniphobic triboelectric nanogenerators. 

New rainproof, stainproof technology turns clothing into self-powered remotes. Purdue University researchers have developed a new fabric innovation that allows wearers to control electronic devices through clothing.

“It is the first time there is a technique capable to transform any existing cloth item or textile into a self-powered e-textile containing sensors, music players or simple illumination displays using simple embroidery without the need for expensive fabrication processes requiring complex steps or expensive equipment,” said Ramses Martinez, an assistant professor in the School of Industrial Engineering and in the Weldon School of Biomedical Engine...

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New Perovskite Material shows Early Promise as an Alternative to Silicon

Perovskite materials are gaining popularity in the photovoltaic world due to their high efficiency and low cost. Light excites electrons in the material that can then flow as electricity. “Dancing atoms in perovskite materials provide insight into how solar cells work” by SLAC National Accelerator Laboratory is licensed under CC BY-NC-SA 2.0.

CsPbI3 is an inorganic perovskite, a group of materials gaining popularity in the solar world due to their high efficiency and low cost. This configuration is noteworthy as stabilizing these materials has historically been a challenge.

Silicon dominates solar energy products – it is stable, cheap, and efficient at turning sunlight into electricity. Any new material taking on silicon must compete, and win, on those grounds...

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Designing a Light-Trapping, Color-Converting Crystal

Researchers propose a microscopic structure that changes laser light from infrared to green and traps both wavelengths of light to improve efficiency of that transformation. This type of structure could help advance telecommunication and computing technologies. (Image credit: Getty Images)

A recipe for creating a microscopic crystal structure that can hold 2 wavelengths of light at once is a step toward faster telecommunications and quantum computers. Five years ago, Stanford postdoctoral scholar Momchil Minkov encountered a puzzle that he was impatient to solve. At the heart of his field of nonlinear optics are devices that change light from one color to another – a process important for many technologies within telecommunications, computing and laser-based equipment and science...

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