Orange organic long-persistent luminescence from an electron donor/acceptor binary system

Zesen Lin, Ryota Kabe, Chihaya Adachi

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Organic long-persistent luminescence (LPL) materials can overcome the disadvantages of inorganic LPL materials in terms of element sustainability, processability, and color tunability. However, all published electron donor/acceptor binary organic LPL systems show green emission. Here, we report an organic LPL system consisting of N,N,N¤,N¤-tetrakis(p-diisobutylaminophenyl)-p-phenylenediamine (TBAPD) as a donor dopant and 2,8-bis(diphenylphosphoryl)dibenzo[b,d]thiophene (PPT) as an acceptor host. The TBAPD/PPT film exhibits orange photoluminescence (CIEx, CIEy = 0.49, 0.49) and LPL (CIEx, CIEy = 0.51, 0.48).

Original languageEnglish
Pages (from-to)203-206
Number of pages4
JournalChemistry Letters
Issue number2
Publication statusPublished - Jan 1 2020


All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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