Aug

28

Perovskite Potential Grows For Use In LEDs

August 28, 2019 | Leave a Comment

Tokyo Institute of Technology scientists have discovered a new strategy to design incredibly efficient perovskite-based LEDs with record-setting brightness by leveraging the quantum confinement effect. Several techniques for generation of light from electricity have been developed over the years. Devices that can emit light when an electric current is applied, are referred to as electroluminescent […]

Aug

20

Doubling the Excitons From a Photon of Light

August 20, 2019 | Leave a Comment

Columbia University scientists have designed organic molecules capable of generating two excitons per photon of light. The process is called singlet fission. Of importance is the excitons can live for much longer than those generated from their inorganic counterparts, which leads to an amplification of electricity generated per photon that is absorbed by a solar […]

Apr

25

An All New Light Emitting Diode

April 25, 2019 | Leave a Comment

Scientists at TU Wien (Vienna) have now succeeded in using exotic bound states of particles to create a novel kind of light-emitting diode. In ultra thin materials, exotic bound states of particles can be created which are then converted into light. When particles bond in free space, they normally create atoms or molecules. However, much […]

Feb

6

More Efficient LED Material Found

February 6, 2018 | Leave a Comment

Researchers at the US Naval Research Laboratory Center for Computational Materials Science (NRL), show that cesium lead halide perovskites nanocrystals (CsPbX3) emit light much faster than conventional light emitting materials. Working with an international team of physicists the group showed the property is enabling more efficient lasers and LEDs with larger emission power at lower […]

Jul

10

Singlet Fission in Solar Cells Gains Credence

July 10, 2014 | Leave a Comment

Scientists have reviewed chemists’ work on “singlet fission,” a process in which a single photon generates a pair of excited states. Singlet fission as a 1->2 conversion process has the potential to boost solar cell efficiency by as much as 30 percent. Chemists at the University of California, Riverside published a perspective article published last […]

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