Quenching behavior of thermally activated delayed fluorescence from a donor-acceptor molecule, 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene by O2

Ryoichi Ishimatsu; Yuko Kirino; Chihaya Adachi; Koji Nakano; Toshihiko Imato

doi:10.1246/cl.160561

Quenching behavior of thermally activated delayed fluorescence from a donor-acceptor molecule, 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene by O₂

Ryoichi Ishimatsu, Yuko Kirino, Chihaya Adachi, Koji Nakano, Toshihiko Imato

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

We describe the quenching behavior of thermally activated delayed fluorescence (TADF) from 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) by O₂ in bis(2-ethylhexyl)sebacate (DOS). Importantly, the high quantum yield of photoluminescence (φPL = 0.93) with efficient TADF was dramatically decreased by O₂. The quenching rate constants of the S₁ and T₁ states were estimated to be in the order of 10⁹ and 10⁸ s^-1 M^-1, respectively. A DOS-plasticized polystyrene film containing 4CzIPN was prepared for optical O₂ sensing to determine O₂ concentration.

Original language	English
Pages (from-to)	1183-1185
Number of pages	3
Journal	Chemistry Letters
Volume	45
Issue number	10
DOIs	https://doi.org/10.1246/cl.160561
Publication status	Published - Jan 1 2016

All Science Journal Classification (ASJC) codes

Chemistry(all)

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Ishimatsu, R., Kirino, Y., Adachi, C., Nakano, K., & Imato, T. (2016). Quenching behavior of thermally activated delayed fluorescence from a donor-acceptor molecule, 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene by O₂ Chemistry Letters, 45(10), 1183-1185. https://doi.org/10.1246/cl.160561

Quenching behavior of thermally activated delayed fluorescence from a donor-acceptor molecule, 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene by O₂ . / Ishimatsu, Ryoichi; Kirino, Yuko; Adachi, Chihaya ; Nakano, Koji; Imato, Toshihiko.

In: Chemistry Letters, Vol. 45, No. 10, 01.01.2016, p. 1183-1185.

Research output: Contribution to journal › Article

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abstract = "We describe the quenching behavior of thermally activated delayed fluorescence (TADF) from 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) by O2 in bis(2-ethylhexyl)sebacate (DOS). Importantly, the high quantum yield of photoluminescence (φPL = 0.93) with efficient TADF was dramatically decreased by O2. The quenching rate constants of the S1 and T1 states were estimated to be in the order of 109 and 108 s-1 M-1, respectively. A DOS-plasticized polystyrene film containing 4CzIPN was prepared for optical O2 sensing to determine O2 concentration.",

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AU - Ishimatsu, Ryoichi

AU - Kirino, Yuko

AU - Adachi, Chihaya

AU - Nakano, Koji

AU - Imato, Toshihiko

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N2 - We describe the quenching behavior of thermally activated delayed fluorescence (TADF) from 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) by O2 in bis(2-ethylhexyl)sebacate (DOS). Importantly, the high quantum yield of photoluminescence (φPL = 0.93) with efficient TADF was dramatically decreased by O2. The quenching rate constants of the S1 and T1 states were estimated to be in the order of 109 and 108 s-1 M-1, respectively. A DOS-plasticized polystyrene film containing 4CzIPN was prepared for optical O2 sensing to determine O2 concentration.

AB - We describe the quenching behavior of thermally activated delayed fluorescence (TADF) from 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) by O2 in bis(2-ethylhexyl)sebacate (DOS). Importantly, the high quantum yield of photoluminescence (φPL = 0.93) with efficient TADF was dramatically decreased by O2. The quenching rate constants of the S1 and T1 states were estimated to be in the order of 109 and 108 s-1 M-1, respectively. A DOS-plasticized polystyrene film containing 4CzIPN was prepared for optical O2 sensing to determine O2 concentration.

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