Spiroborate‐Based Host Materials with High Triplet Energies and Ambipolar Charge‐Transport Properties-Reference-Cited by-同舟云学术

Spiroborate‐Based Host Materials with High Triplet Energies and Ambipolar Charge‐Transport Properties

Published:2023-02-15 Issue:14 Volume:135 Page:
ISSN:0044-8249
Container-title:Angewandte Chemie
language:en
Short-container-title:Angewandte Chemie

Author:

Hayakawa Masahiro¹^ORCID,Kameda Mayu²,Kawasumi Ryosuke³,Nakatsuka Soichiro¹²^ORCID,Yasuda Nobuhiro⁴,Hatakeyama Takuji¹²^ORCID

Affiliation:

1. Department of Chemistry Graduate School of Science Kyoto University Kitashirakawa Oiwake-cho, Sakyo-ku Kyoto 606-8502 Japan

2. Department of Chemistry School of Science and Technology Kwansei Gakuin University 1 Gakuen Uegahara Sanda Hyogo 669-1330 Japan

3. SK JNC Japan Co., Ltd. 5-1 Goi Kaigan Ichihara Chiba 290-8551 Japan

4. Center for Synchrotron Radiation Research Japan Synchrotron Radiation Research Institute (JASRI) 1-1-1 Kouto Sayo-cho, Sayo-gun Hyogo 679-5198 Japan

Abstract

AbstractOrganic light‐emitting diodes (OLEDs) receive considerable attention because of their commercial use in flat panel displays. Herein, highly efficient spiroborate‐based host materials are reported for use in blue OLEDs. Our designed spiroborates (SBOX) were simple to synthesize and exhibited high triplet excitation energies, narrow S‐T gaps, and balanced charge carrier mobilities. A blue OLED containing one of the designed spiroborates, SBON, as a host exhibited a high external quantum efficiency (27.6 %) and low turn‐on voltage (3.7 V) compared to those observed using 3,3′‐di(9H‐carbazol‐9‐yl)‐1,1′‐biphenyl (17.6 % and 4.5 V, respectively), indicating their potential as host materials in OLEDs.

Funder

Japan Society for the Promotion of Science

Asahi Glass Foundation

Publisher

Wiley

Subject

General Medicine

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/ange.202217512

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