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Efficient soluble deep blue electroluminescent dianthracenylphenylene emitters with CIE y (y ≤ 0.08) based on triplet-triplet annihilation.
Peng, Ling; Yao, Jing-Wen; Wang, Mei; Wang, Lin-Ye; Huang, Xiao-Lan; Wei, Xin-Feng; Ma, Dong-Ge; Cao, Yong; Zhu, Xu-Hui.
Afiliación
  • Peng L; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China.
  • Yao JW; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China.
  • Wang M; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China.
  • Wang LY; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China.
  • Huang XL; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China.
  • Wei XF; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China.
  • Ma DG; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China. Electronic address: msdgma@scut.edu.cn.
  • Cao Y; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China.
  • Zhu XH; State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640, China. Electronic address: xuhuizhu@scut.edu.cn.
Sci Bull (Beijing) ; 64(11): 774-781, 2019 Jun 15.
Article en En | MEDLINE | ID: mdl-36659547
ABSTRACT
It has been challenging to develop deep blue organic molecular fluorescent emitters with CIE y (y ≤ 0.08) based on triplet-triplet annihilation (TTA). Here, we report facilely available dianthracenylphenylene-based emitters, which have a 3,5-di(4-t-butylphenyl)phenyl moiety at the one end and 4-cyanophenyl or 3-pyridyl at the other end, respectively. Both fluorophores show a high glass transition temperature of over 220 °C with a thermal decomposition temperature of over 430 °C at an initial weight loss of 1%. The preliminary characterizations of the organic light-emitting diodes (OLEDs) that utilized these nondoped emitters provided high EQEs of 4.6%-5.9% with CIE coordinates (0.15, 0.07-0.08). The analysis of the EL transient decay revealed that TTA contributed to the observed performance. The results show that the new emitters are attractive as a potential TTA-based host to afford stable deep blue fluorescent OLEDs.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Sci Bull (Beijing) Año: 2019 Tipo del documento: Article País de afiliación: China
Texto completo
Imprimir
XML
PubMed Links
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Sci Bull (Beijing) Año: 2019 Tipo del documento: Article País de afiliación: China