Record efficiency for perovskite-based light-emitting diodes

Efficient near-infrared (NIR) light-emitting diodes of perovskite have been produced in a laboratory at Linköping University. The external quantum efficiency is 21.6 percent, which is a record. The results have been published ...

A laser focus on finding better ways to make renewable fuels

In the search for alternatives to oil-based fuels, one of the most promising, and challenging, strategies involves splitting water. Researchers have for decades made strides in using sunlight to split water molecules into ...

Researchers develop a cheap, targeted antibacterial compound

An international scientific group including a RUDN chemist have developed a complex copper-based compound with stronger antibacterial properties compared to analogs, and is cheaper to produce. The scientists confirmed that ...

Invisible tags: Physicists write, read and erase using light

A team of physicists headed by Professor Sebastian Reineke of TU Dresden has developed a new method of storing information in fully transparent plastic foils. Their innovative idea has been published in Science Advances.

Very heavy elements deliver more electrons

Actinides, a series of 15 radioactive elements, are vital to medicine, energy, and national defense. Scientists examined two exceedingly rare actinides, berkelium and californium. These elements are at the extreme end of ...

The pho­to­elec­tric ef­fect in stereo

In the photoelectric effect, a photon ejects an electron from a material. Researchers at ETH have now used attosecond laser pulses to measure the time evolution of this effect in molecules. From their results they can deduce ...

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