Kyushu University researchers have a blue light source organic light-emitting diode matching the excellent performance of the red and green ones. Using a new combination of emitter molecules, the researchers have demonstrated the promise of a novel approach to finally overcome a major challenge facing displays with high efficiency, maintaining brightness for a relatively long […]

Physicists in China, led by Yadong Wang at Hebei North University, found that higher-than-expected efficiency can be reached through interactions between triplet excitons, and impurities embedded in the LED polymer. Molecular dynamics simulations have shown that the mysteriously high efficiency of polymer LEDs arises from interactions between triplet excitons in their polymer chains, and unpaired […]

Open Image…Save ImageOpen Image (using #TmpD/ia)… The National Institute of Standards and Technology (NIST) has a new design for light-emitting diodes that achieves a dramatic increase in brightness as well as the ability to create laser light. These characteristics could make it valuable in a range of applications. The device shows an increase in brightness of 100 to 1,000 times […]

Open Image…Save ImageOpen Image (using #TmpD/ia)… A team from Imperial College London and the Indian Institute of Technology (IIT) Guwahati have found a new way to boost the amount of light LEDs produce and increase their lifetime. Its done by adding layer of nanoparticles to LED designs. They report their innovation in the journal Light Science & Applications. Making light-emitting […]

Los Alamos National Laboratory researchers have developed new quantum dot solar cells that match the efficiency of existing quantum-dot based devices, but without lead or other toxic elements relied on by most solar cells of this type. Victor Klimov, a physicist specializing in semiconductor nanocrystals at Los Alamos and lead author of the report featured […]

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