Frontiers in Chemistry (Oct 2023)

External magnetic field-induced circularly polarized luminescence and electroluminescence from optically inactive thermally activated delayed fluorescence material 4CzIPN

  • Takumi Kuroda,
  • Maho Kitahara,
  • Shigeyuki Yagi,
  • Yoshitane Imai

DOI
https://doi.org/10.3389/fchem.2023.1281168
Journal volume & issue
Vol. 11

Abstract

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An achiral optically inactive organic luminophore, 4CzIPN, exhibits circularly polarized thermally activated delayed fluorescence when photoexcited under an external magnetic field. By embedding this luminophore in an active emission layer, an external-magnetic-field-induced circularly polarized electroluminescent device is developed in this study. The Faraday geometry of the applied magnetic field completely controls the direction of rotation of 4CzIPN-derived circularly polarized luminescence and electroluminescence.

Keywords