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Seo JA, Im Y, Han SH, et al. Unconventional Molecular Design Approach of High-Efficiency Deep Blue Thermally Activated Delayed Fluorescent Emitters Using Indolocarbazole as an Acceptor. ACS Appl Mater Interfaces. 2017;9(43):37864-37872doi: 10.1021/acsami.7b09351.
Seo, J. A., Im, Y., Han, S. H., Lee, C. W., & Lee, J. Y. (2017). Unconventional Molecular Design Approach of High-Efficiency Deep Blue Thermally Activated Delayed Fluorescent Emitters Using Indolocarbazole as an Acceptor. ACS applied materials & interfaces, 9(43), 37864-37872. https://doi.org/10.1021/acsami.7b09351
Seo, Jeong-A, et al. "Unconventional Molecular Design Approach of High-Efficiency Deep Blue Thermally Activated Delayed Fluorescent Emitters Using Indolocarbazole as an Acceptor." ACS applied materials & interfaces vol. 9,43 (2017): 37864-37872. doi: https://doi.org/10.1021/acsami.7b09351
Seo JA, Im Y, Han SH, Lee CW, Lee JY. Unconventional Molecular Design Approach of High-Efficiency Deep Blue Thermally Activated Delayed Fluorescent Emitters Using Indolocarbazole as an Acceptor. ACS Appl Mater Interfaces. 2017 Nov 01;9(43):37864-37872. doi: 10.1021/acsami.7b09351. Epub 2017 Oct 17. PMID: 28980471.
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ACS Appl Mater Interfaces. 2017 Nov 01;9(43):37864-37872. doi: 10.1021/acsami.7b09351. Epub 2017 Oct 17.

Unconventional Molecular Design Approach of High-Efficiency Deep Blue Thermally Activated Delayed Fluorescent Emitters Using Indolocarbazole as an Acceptor.

ACS applied materials & interfaces

Jeong-A Seo, Yirang Im, Si Hyun Han, Chil Won Lee, Jun Yeob Lee

Affiliations

  1. School of Chemical Engineering, Sungkyunkwan University , 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi 440-746, Korea.
  2. Department of Chemistry, Dankook University , Cheonan, Chungcheongnam-do 31116, Korea.

PMID: 28980471 DOI: 10.1021/acsami.7b09351

Abstract

Unconventional blue thermally activated delayed fluorescent emitters having electron-donating type indolocarbazole as an acceptor were developed by attaching carbazolylcarbazole or acridine donors to the indolocarbazole acceptor. Three compounds were derived from the indolocarbazole acceptor. The indolocarbazole-acridine combined products showed efficient delayed fluorescent behavior and a high quantum efficiency of 19.5% with a color coordinate of (0.15, 0.16) when they were evaluated as thermally activated delayed fluorescent emitters in deep blue fluorescent devices. This is the first demonstration of the use of electron-donating carbazole-derived moieties as efficient acceptor units of blue thermally activated delayed fluorescent emitters.

Keywords: acceptor; blue device; delayed fluorescence; indolocarbazole; quantum efficiency

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