Highly Luminescent π-Conjugated Terpyridine Derivatives Exhibiting Thermally Activated Delayed Fluorescence

Hisahiro Sasabe, Yuya Hayasaka, Ryutaro Komatsu, Kohei Nakao, Junji Kido

研究成果: ジャーナルへの寄稿学術誌査読

23 被引用数 (Scopus)

抄録

Typically, luminescent π-conjugated 2,2′:6′,2′′-terpyridine (tpy) derivatives are versatile components for tridentate metal ligands, supramolecular materials, two-photon absorption bioimaging probes, fluorescent ion sensors, and organic light-emitting devices. However, a limited number of luminescent tpy materials, other than metal complexes, have been reported. This study introduces a series of π-conjugated tpy derivatives that exhibit strong thermally activated delayed fluorescence (TADF). We have observed that a blue tpy emitter outperforms conventional fluorescent emitters. Additionally, a green tpy emitter has exhibited a performance that is almost comparable to that of its green phosphorescent counterparts, realizing an external quantum efficiency close to 25 % and a power efficiency exceeding 80 lm W−1with an exceptionally low efficiency roll-off. This study demonstrates the first example of highly luminescent tpy-based TADF emitters.

本文言語英語
ページ(範囲)114-119
ページ数6
ジャーナルChemistry - A European Journal
23
1
DOI
出版ステータス出版済み - 1月 1 2017
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 触媒
  • 有機化学

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