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

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Fluorescence
Molecules
Organic light emitting diodes (OLED)
Quantum yield
Quantum efficiency
Thin films
Wavelength
carbazole
benzophenone

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Carbazole and benzophenone based twisted donoracceptor systems as solution processable green thermally activated delayed fluorescence organic light emitters. / Tani, Keita; Yashima, Toru; Miyanaga, Kanae; Hori, Kazushige; Goto, Kenta; Tani, Fumito; Habuka, Yume; Suzuki, Katsuaki; Shizu, Katsuyuki; Kaji, Hironori.

In: Chemistry Letters, Vol. 47, No. 9, 01.01.2018, p. 1236-1239.

Research output: Contribution to journalArticle

Tani, Keita ; Yashima, Toru ; Miyanaga, Kanae ; Hori, Kazushige ; Goto, Kenta ; Tani, Fumito ; Habuka, Yume ; Suzuki, Katsuaki ; Shizu, Katsuyuki ; Kaji, Hironori. / Carbazole and benzophenone based twisted donoracceptor systems as solution processable green thermally activated delayed fluorescence organic light emitters. In: Chemistry Letters. 2018 ; Vol. 47, No. 9. pp. 1236-1239.
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AU - Miyanaga, Kanae

AU - Hori, Kazushige

AU - Goto, Kenta

AU - Tani, Fumito

AU - Habuka, Yume

AU - Suzuki, Katsuaki

AU - Shizu, Katsuyuki

AU - Kaji, Hironori

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