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

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)6703-6710
Number of pages8
JournalAdvanced Functional Materials
Volume26
Issue number37
DOIs
Publication statusPublished - Oct 4 2016

Fingerprint

difluorides
Organic light emitting diodes (OLED)
Boron
emitters
boron
light emitting diodes
Tuning
tuning
Color
color
Luminescent devices
Quantum efficiency
Dimers
quantum efficiency
Agglomeration
Fluorescence
dimers
fluorescence
Molecules
molecules

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Condensed Matter Physics
  • Electrochemistry

Cite this

Color Tuning of Avobenzone Boron Difluoride as an Emitter to Achieve Full-Color Emission. / Mo, Hin Wai; Tsuchiya, Youichi; Geng, Yan; Sagawa, Takehiro; Kikuchi, Chika; Nakanotani, Hajime; Ito, Fuyuki; Adachi, Chihaya.

In: Advanced Functional Materials, Vol. 26, No. 37, 04.10.2016, p. 6703-6710.

Research output: Contribution to journalArticle

Mo, Hin Wai ; Tsuchiya, Youichi ; Geng, Yan ; Sagawa, Takehiro ; Kikuchi, Chika ; Nakanotani, Hajime ; Ito, Fuyuki ; Adachi, Chihaya. / Color Tuning of Avobenzone Boron Difluoride as an Emitter to Achieve Full-Color Emission. In: Advanced Functional Materials. 2016 ; Vol. 26, No. 37. pp. 6703-6710.
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