Nature Communications (May 2022)

Singlet and triplet to doublet energy transfer: improving organic light-emitting diodes with radicals

  • Feng Li,
  • Alexander J. Gillett,
  • Qinying Gu,
  • Junshuai Ding,
  • Zhangwu Chen,
  • Timothy J. H. Hele,
  • William K. Myers,
  • Richard H. Friend,
  • Emrys W. Evans

DOI
https://doi.org/10.1038/s41467-022-29759-7
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 9

Abstract

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Organic light-emitting diodes must be engineered to circumvent efficiency limits imposed by the ratio of triplet to singlet exciton formation, following electron-hole capture. Here, authors unlock energy transfer channels between singlet, triplet and doublet excitons using thermally activated delayed fluorescence and radical emitters towards more efficient light-emitting devices.