Organic LEDs articles within Nature

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  • Analysis
    | Open Access

    Efficiency roll-off in a wide range of TADF OLEDs is analysed and a figure of merit proposed for materials design to improve efficiency at high brightness, potentially expanding the range of applications of TADF materials.

    • S. Diesing
    • , L. Zhang
    •  & I. D. W. Samuel

  • Article
    | Open Access

    An electrically driven organic semiconductor laser is achieved by integrating a device structure that efficiently couples an organic light-emitting diode, with extremely high internal-light generation, with a polymer distributed feedback laser.

    • Kou Yoshida
    • , Junyi Gong
    •  & Ifor D. W. Samuel

  • Article
    | Open Access

    A fluorescent molecule is described that does not follow Hund’s rule and instead shows singlet and triplet excited states with inverted energy levels, leading to high-efficiency OLEDs with potential implications for optoelectronic devices.

    • Naoya Aizawa
    • , Yong-Jin Pu
    •  & Daigo Miyajima

  • Article |

    A material design strategy and fabrication process is described to produce all-polymer light-emitting diodes with high brightness, current efficiency and good mechanical stability, with applications in skin electronics and human–machine interfaces.

    • Zhitao Zhang
    • , Weichen Wang
    •  & Zhenan Bao

  • Letter |

    Organic light-emitting devices containing radical emitters can achieve an efficiency of 27 per cent at deep-red and infrared wavelengths based on the excitation of spin doublets, rather than singlet or triplet states.

    • Xin Ai
    • , Emrys W. Evans
    •  & Feng Li

  • News & Views |

    A class of fluorescent organic molecule has been designed that enables highly efficient light-emitting diodes to be made. The devices may turn out to be competitors to their conventional analogues. See Letter p.234

    • Brian D'Andrade

  • Letter |

    A class of metal-free organic electroluminescent molecules is designed in which both singlet and triplet excitons contribute to light emission, leading to an intrinsic fluorescence efficiency greater than 90 per cent and an external electroluminescence efficiency comparable to that achieved in high-efficiency phosphorescence-based organic light-emitting diodes.

    • Hiroki Uoyama
    • , Kenichi Goushi
    •  & Chihaya Adachi

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