Waste rice husks are an excellent source of high-purity silica and value-added Si powder.

This new approach represents an important step to the commercial application of PeLED lighting.

Compared to the conventional aluminum gallium nitride, the new material has significantly higher efficiency of luminescence.

New device is based on upconversion transition associated with triplet–triplet annihilation that doubles the energy of excited states.

IT systems that are physically isolated from the outside world (air-gapped) can still be attacked. This has been demonstrated by computer security experts in the...

The scientists observed very high output power of 1.76 milliwatts from each square millimeter on the device’s surface – a notable improvement on previous devices.