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    Selective Formation of Excitons Could Lower OLED Energy Requirements

    Article obtained from Photonics RSS Feed.

    Scientists from RIKEN and the University of California, San Diego, in collaboration with international partners, have demonstrated a new way to manipulate the excitons that are essential to the transport of electrons within OLEDs. They showed that the electron transport process accompanying exciton formation in OLEDs can be controlled by manipulating an electron spin inside a molecule. The discovery could significantly reduce the amount of energy that OLEDs require.

    Schematic image of the measurement; (b) STM image of PTCDA adsorbed on NaCl grown on Ag(111); (c) luminescence spectrum. Courtesy of RIKEN.
    Typically, the excitons in OLEDs occur in two patterns, triplets and singlets. Singlets need more energy, and although they can…

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    Jun, 10 2019 |

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