Degradation Mechanism and Stability Improvement Strategy for an Organic Laser Gain Material 4,4′-Bis[(N-carbazole)styryl]biphenyl (BSBCz)

Toshinori Matsusima, Seiya Yoshida, Ko Inada, Yu Esaki, Toshiya Fukunaga, Hiroyuki Mieno, Nozomi Nakamura, Fatima Bencheikh, Matthew R. Leyden, Ryutaro Komatsu, Chuanjiang Qin, Atula S.D. Sandanayaka, Chihaya Adachi

研究成果: ジャーナルへの寄稿記事

抄録

The organic material 4,4′-bis[(N-carbazole)styryl]biphenyl (BSBCz) is an excellent gain medium for laser devices. However, BSBCz laser output quickly degrades during photoexcitation, which is an issue that must be overcome before it can be used for practical applications. In this study, the photodegradation mechanisms of BSBCz are investigated with the aim of enhancing its excited-state stability. The photodegradation of BSBCz is attributed to instability of the triplet excited states that would occasionally decompose into other species. This decomposition reduces absorption and introduces exciton quenchers. Incorporating the triplet managing material 9,10-di(naphtha-2-yl)anthracene (ADN) into BSBCz films greatly improves photoluminescence and amplified spontaneous emission stability because of the effective removal of the unstable triplets by ADN. This triplet managing method makes it possible to increase operational stability for BSBCz-based organic light-emitting diodes. Therefore, these results will contribute toward the fabrication of stable optically and electrically pumped organic laser diodes.

元の言語英語
記事番号1807148
ジャーナルAdvanced Functional Materials
29
発行部数10
DOI
出版物ステータス出版済み - 3 7 2019

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Organic lasers
organic lasers
carbazoles
degradation
Degradation
Photodegradation
Excited states
Lasers
Photoexcitation
Anthracene
Naphthas
Spontaneous emission
Organic light emitting diodes (OLED)
laser outputs
organic materials
anthracene
photoexcitation
Excitons
spontaneous emission
excitation

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

これを引用

Degradation Mechanism and Stability Improvement Strategy for an Organic Laser Gain Material 4,4′-Bis[(N-carbazole)styryl]biphenyl (BSBCz). / Matsusima, Toshinori; Yoshida, Seiya; Inada, Ko; Esaki, Yu; Fukunaga, Toshiya; Mieno, Hiroyuki; Nakamura, Nozomi; Bencheikh, Fatima; Leyden, Matthew R.; Komatsu, Ryutaro; Qin, Chuanjiang; Sandanayaka, Atula S.D.; Adachi, Chihaya.

:: Advanced Functional Materials, 巻 29, 番号 10, 1807148, 07.03.2019.

研究成果: ジャーナルへの寄稿記事

Matsusima, T, Yoshida, S, Inada, K, Esaki, Y, Fukunaga, T, Mieno, H, Nakamura, N, Bencheikh, F, Leyden, MR, Komatsu, R, Qin, C, Sandanayaka, ASD & Adachi, C 2019, 'Degradation Mechanism and Stability Improvement Strategy for an Organic Laser Gain Material 4,4′-Bis[(N-carbazole)styryl]biphenyl (BSBCz)', Advanced Functional Materials, 巻. 29, 番号 10, 1807148. https://doi.org/10.1002/adfm.201807148
Matsusima, Toshinori ; Yoshida, Seiya ; Inada, Ko ; Esaki, Yu ; Fukunaga, Toshiya ; Mieno, Hiroyuki ; Nakamura, Nozomi ; Bencheikh, Fatima ; Leyden, Matthew R. ; Komatsu, Ryutaro ; Qin, Chuanjiang ; Sandanayaka, Atula S.D. ; Adachi, Chihaya. / Degradation Mechanism and Stability Improvement Strategy for an Organic Laser Gain Material 4,4′-Bis[(N-carbazole)styryl]biphenyl (BSBCz). :: Advanced Functional Materials. 2019 ; 巻 29, 番号 10.
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abstract = "The organic material 4,4′-bis[(N-carbazole)styryl]biphenyl (BSBCz) is an excellent gain medium for laser devices. However, BSBCz laser output quickly degrades during photoexcitation, which is an issue that must be overcome before it can be used for practical applications. In this study, the photodegradation mechanisms of BSBCz are investigated with the aim of enhancing its excited-state stability. The photodegradation of BSBCz is attributed to instability of the triplet excited states that would occasionally decompose into other species. This decomposition reduces absorption and introduces exciton quenchers. Incorporating the triplet managing material 9,10-di(naphtha-2-yl)anthracene (ADN) into BSBCz films greatly improves photoluminescence and amplified spontaneous emission stability because of the effective removal of the unstable triplets by ADN. This triplet managing method makes it possible to increase operational stability for BSBCz-based organic light-emitting diodes. Therefore, these results will contribute toward the fabrication of stable optically and electrically pumped organic laser diodes.",
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AU - Inada, Ko

AU - Esaki, Yu

AU - Fukunaga, Toshiya

AU - Mieno, Hiroyuki

AU - Nakamura, Nozomi

AU - Bencheikh, Fatima

AU - Leyden, Matthew R.

AU - Komatsu, Ryutaro

AU - Qin, Chuanjiang

AU - Sandanayaka, Atula S.D.

AU - Adachi, Chihaya

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N2 - The organic material 4,4′-bis[(N-carbazole)styryl]biphenyl (BSBCz) is an excellent gain medium for laser devices. However, BSBCz laser output quickly degrades during photoexcitation, which is an issue that must be overcome before it can be used for practical applications. In this study, the photodegradation mechanisms of BSBCz are investigated with the aim of enhancing its excited-state stability. The photodegradation of BSBCz is attributed to instability of the triplet excited states that would occasionally decompose into other species. This decomposition reduces absorption and introduces exciton quenchers. Incorporating the triplet managing material 9,10-di(naphtha-2-yl)anthracene (ADN) into BSBCz films greatly improves photoluminescence and amplified spontaneous emission stability because of the effective removal of the unstable triplets by ADN. This triplet managing method makes it possible to increase operational stability for BSBCz-based organic light-emitting diodes. Therefore, these results will contribute toward the fabrication of stable optically and electrically pumped organic laser diodes.

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