Carbazole and benzophenone based twisted donoracceptor systems as solution processable green thermally activated delayed fluorescence organic light emitters

Keita Tani, Toru Yashima, Kanae Miyanaga, Kazushige Hori, Kenta Goto, Fumito Tani, Yume Habuka, Katsuaki Suzuki, Katsuyuki Shizu, Hironori Kaji

Research output: Contribution to journalArticle

Abstract

New donor-acceptor (D-A) and donor-acceptor-donor (D-AD) systems with carbazole and benzophenone moieties as donor and acceptor, respectively, have been synthesized. Photolumi-nescence quantum yields of D-A and D-A-D molecules in thin film were 76 and 73%, respectively. Solution-processed organic light-emitting diodes containing these D-A and D-A-D molecules as emitters showed the maximum external quantum efficiencies of 6.9 and 10.4% with a peak wavelength of 520 and 521 nm, respectively.

Original languageEnglish
Pages (from-to)1236-1239
Number of pages4
JournalChemistry Letters
Volume47
Issue number9
DOIs
Publication statusPublished - Jan 1 2018

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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