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A donor-acceptor 10-cycloparaphenylene and its use as an emitter in an organic light-emitting diode

  • Dongyang Chen
  • , Yoshimasa Wada
  • , Yu Kusakabe
  • , Liangsheng Sun
  • , Ei-ichi Kayahara
  • , Katsuaki Suzuki
  • , Hiroyuki Tanaka
  • , Shigeru Yamago*
  • , Hironori Kaji*
  • , Eli Zysman-Colman*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Here, we explored the possibility of using cycloparaphenylenes (CPP) within a donor–acceptor TADF emitter design. 4PXZPh-[10]CPP contains four electron-donating moieties connected to a [10]CPP. In the 15 wt % doped in CzSi film, 4PXZPh-[10]CPP showed sky-blue emission with λPL = 475 nm, ΦPL = 29%, and triexponential emission decays with τPL of 4.4, 46.3, and 907.8 ns. Solution-processed OLEDs using 4PXZPh-[10]CPP exhibited sky-blue emission with an λEL of 465 nm and an EQEmax of 1.0%.
Original languageEnglish
Pages (from-to)998-1002
Number of pages5
JournalOrganic Letters
Volume25
Issue number6
Early online date6 Feb 2023
DOIs
Publication statusPublished - 17 Feb 2023

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