Coffee-based colloids for direct solar absorption

Solar energy is one of the most promising resources to help reduce fossil fuel consumption and mitigate greenhouse gas emissions to power a sustainable future. Devices presently in use to convert solar energy into thermal ...

New approach facilitates spectroscopy on individual molecules

While spectroscopic measurements are normally averaged over myriad molecules, a new method developed by researchers at the Technical University of Munich (TUM) provides precise information about the interaction of individual ...

Composite significantly reduces electromagnetic pollution

In a paper published in Nano, a group of researchers from Anhui University of Science and Technology have synthesized PANI/Zn ferrite composites which have shown excellent microwave absorption performance. They could be used ...

Unraveling how spiderwebs absorb energy

Spiderwebs can withstand a predator's impact while still helping catch and detect small prey. Spiders architect these lightweight networks for strength and elasticity using different silks and geometric structures. Recently, ...

Unconventional solution process for 2-D heterostructure

Solution-processed transitional metal chalcogenide (TMD) nanosheets exhibit limited light absorption and low quantum efficiencies because of their atomic-scale thicknesses and large specific surface area accompanied with ...

Could a cardboard principle boost vehicle safety?

Prior research has shown that even thin-walled tubing can effectively absorb energy, which makes it appealing to those who engineer vehicles and other structures that may endure crashes.

Asymmetric sound absorption lets in the light

If you've ever lived in an apartment building or stayed in a hotel room, you are probably familiar with the inconvenience of inadequate sound absorption. Acoustic absorption refers to the absorption of sound energy by a material. ...

Sand absorbs high-speed ballistic impact better than steel

A study led by Assistant Professor Darren Chian Siau Chen from the Department of Civil and Environmental Engineering at the National University of Singapore's Faculty of Engineering has found that when a projectile is fired ...

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