Color Tuning of Avobenzone Boron Difluoride as an Emitter to Achieve Full-Color Emission

Hin Wai Mo, Youichi Tsuchiya, Yan Geng, Takehiro Sagawa, Chika Kikuchi, Hajime Nakanotani, Fuyuki Ito, Chihaya Adachi

研究成果: Contribution to journalArticle査読

71 被引用数 (Scopus)

抄録

Organic light-emitting diodes (OLEDs) displaying a wide range of emission colors with emission peaks from 450 to 665 nm using a single emitting material, avobenzone boron difluoride (AVB-BF2), are reported. Color tuning is achieved by controlling the aggregation of AVB-BF2 and the formation of a “triadic” exciplex of an AVB-BF2 dimer and a host molecule. Various electroluminescent devices containing AVB-BF2 cover the whole visible light spectrum and a white-emitting device with CIE coordinates of (0.35, 0.37) is obtained with a single emitting material in a single emissive layer. Furthermore, an exceptionally high external quantum efficiency of nearly 13% is achieved for a green-emitting OLED because AVB-BF2 exhibits thermally activated delayed fluorescence by forming the exciplex.

本文言語英語
ページ(範囲)6703-6710
ページ数8
ジャーナルAdvanced Functional Materials
26
37
DOI
出版ステータス出版済み - 10 4 2016

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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