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.

Breakthrough in stabilizing nanocrystals introduces a low-cost, energy-efficient light source for consumer electronic devices, detectors and medical imaging.

Applying mechanical strain on an atomically thin, transparent monolayer semiconductor results in a material with an almost total light-emission efficiency.