High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter

Dae Hyeon Kim; Anthony D'Aléo; Xian Kai Chen; Atula D.S. Sandanayaka; Dandan Yao; Li Zhao; Takeshi Komino; Elena Zaborova; Gabriel Canard; Youichi Tsuchiya; Eunyoung Choi; Jeong Weon Wu; Frédéric Fages; Jean Luc Brédas; Jean Charles Ribierre; Chihaya Adachi

doi:10.1038/s41566-017-0087-y

High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter

Dae Hyeon Kim, Anthony D'Aléo, Xian Kai Chen, Atula D.S. Sandanayaka, Dandan Yao, Li Zhao, Takeshi Komino, Elena Zaborova, Gabriel Canard, Youichi Tsuchiya, Eunyoung Choi, Jeong Weon Wu, Frédéric Fages, Jean Luc Brédas, Jean Charles Ribierre, Chihaya Adachi

Department of Physics

Research output: Contribution to journal › Article › peer-review

427 Scopus citations

Abstract

Near-infrared organic light-emitting diodes and semiconductor lasers could benefit a variety of applications including night-vision displays, sensors and information-secured displays. Organic dyes can generate electroluminescence efficiently at visible wavelengths, but organic light-emitting diodes are still underperforming in the near-infrared region. Here, we report thermally activated delayed fluorescent organic light-emitting diodes that operate at near-infrared wavelengths with a maximum external quantum efficiency of nearly 10% using a boron difluoride curcuminoid derivative. As well as an effective upconversion from triplet to singlet excited states due to the non-adiabatic coupling effect, this donor-acceptor-donor compound also exhibits efficient amplified spontaneous emission. By controlling the polarity of the active medium, the maximum emission wavelength of the electroluminescence spectrum can be tuned from 700 to 780 nm. This study represents an important advance in near-infrared organic light-emitting diodes and the design of alternative molecular architectures for photonic applications based on thermally activated delayed fluorescence.

Original language	English
Pages (from-to)	98-104
Number of pages	7
Journal	Nature Photonics
Volume	12
Issue number	2
DOIs	https://doi.org/10.1038/s41566-017-0087-y
State	Published - 1 Feb 2018

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© 2018 The Author(s).

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Kim, D. H., D'Aléo, A., Chen, X. K., Sandanayaka, A. D. S., Yao, D., Zhao, L., Komino, T., Zaborova, E., Canard, G., Tsuchiya, Y., Choi, E., Wu, J. W., Fages, F., Brédas, J. L., Ribierre, J. C., & Adachi, C. (2018). High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter. Nature Photonics, 12(2), 98-104. https://doi.org/10.1038/s41566-017-0087-y

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title = "High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter",

abstract = "Near-infrared organic light-emitting diodes and semiconductor lasers could benefit a variety of applications including night-vision displays, sensors and information-secured displays. Organic dyes can generate electroluminescence efficiently at visible wavelengths, but organic light-emitting diodes are still underperforming in the near-infrared region. Here, we report thermally activated delayed fluorescent organic light-emitting diodes that operate at near-infrared wavelengths with a maximum external quantum efficiency of nearly 10% using a boron difluoride curcuminoid derivative. As well as an effective upconversion from triplet to singlet excited states due to the non-adiabatic coupling effect, this donor-acceptor-donor compound also exhibits efficient amplified spontaneous emission. By controlling the polarity of the active medium, the maximum emission wavelength of the electroluminescence spectrum can be tuned from 700 to 780 nm. This study represents an important advance in near-infrared organic light-emitting diodes and the design of alternative molecular architectures for photonic applications based on thermally activated delayed fluorescence.",

author = "Kim, {Dae Hyeon} and Anthony D'Al{\'e}o and Chen, {Xian Kai} and Sandanayaka, {Atula D.S.} and Dandan Yao and Li Zhao and Takeshi Komino and Elena Zaborova and Gabriel Canard and Youichi Tsuchiya and Eunyoung Choi and Wu, {Jeong Weon} and Fr{\'e}d{\'e}ric Fages and Br{\'e}das, {Jean Luc} and Ribierre, {Jean Charles} and Chihaya Adachi",

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Kim, DH, D'Aléo, A, Chen, XK, Sandanayaka, ADS, Yao, D, Zhao, L, Komino, T, Zaborova, E, Canard, G, Tsuchiya, Y, Choi, E, Wu, JW, Fages, F, Brédas, JL, Ribierre, JC & Adachi, C 2018, 'High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter', Nature Photonics, vol. 12, no. 2, pp. 98-104. https://doi.org/10.1038/s41566-017-0087-y

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AU - D'Aléo, Anthony

AU - Chen, Xian Kai

AU - Sandanayaka, Atula D.S.

AU - Yao, Dandan

AU - Zhao, Li

AU - Komino, Takeshi

AU - Zaborova, Elena

AU - Canard, Gabriel

AU - Tsuchiya, Youichi

AU - Choi, Eunyoung

AU - Wu, Jeong Weon

AU - Fages, Frédéric

AU - Brédas, Jean Luc

AU - Ribierre, Jean Charles

AU - Adachi, Chihaya

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AB - Near-infrared organic light-emitting diodes and semiconductor lasers could benefit a variety of applications including night-vision displays, sensors and information-secured displays. Organic dyes can generate electroluminescence efficiently at visible wavelengths, but organic light-emitting diodes are still underperforming in the near-infrared region. Here, we report thermally activated delayed fluorescent organic light-emitting diodes that operate at near-infrared wavelengths with a maximum external quantum efficiency of nearly 10% using a boron difluoride curcuminoid derivative. As well as an effective upconversion from triplet to singlet excited states due to the non-adiabatic coupling effect, this donor-acceptor-donor compound also exhibits efficient amplified spontaneous emission. By controlling the polarity of the active medium, the maximum emission wavelength of the electroluminescence spectrum can be tuned from 700 to 780 nm. This study represents an important advance in near-infrared organic light-emitting diodes and the design of alternative molecular architectures for photonic applications based on thermally activated delayed fluorescence.

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High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter

Abstract

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