Ultra-fast triplet-triplet-annihilation-mediated high-lying reverse intersystem crossing triggered by participation of nπ*-featured excited states

Yanju Luo; Kai Zhang; Zhenming Ding; Ping Chen; Xiaomei Peng; Yihuan Zhao; Kuan Chen; Chuan Li; Xujun Zheng; Yan Huang; Xuemei Pu; Yu Liu; Shi-Jian Su; Xiandeng Hou; Zhiyun Lu

doi:10.1038/s41467-022-34573-2

Nature Communications (Nov 2022)

Ultra-fast triplet-triplet-annihilation-mediated high-lying reverse intersystem crossing triggered by participation of nπ*-featured excited states

Yanju Luo,
Kai Zhang,
Zhenming Ding,
Ping Chen,
Xiaomei Peng,
Yihuan Zhao,
Kuan Chen,
Chuan Li,
Xujun Zheng,
Yan Huang,
Xuemei Pu,
Yu Liu,
Shi-Jian Su,
Xiandeng Hou,
Zhiyun Lu

Affiliations

Yanju Luo: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University
Kai Zhang: Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, Changzhou University
Zhenming Ding: Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, Changzhou University
Ping Chen: Chongqing key Laboratory of Micro&Nano Structure Optoelectronics, School of Physical Science and Technology, Southwest University
Xiaomei Peng: State Key Laboratory of Luminescent Materials and Devices and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology
Yihuan Zhao: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University
Kuan Chen: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University
Chuan Li: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University
Xujun Zheng: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University
Yan Huang: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University
Xuemei Pu: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University
Yu Liu: Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, Changzhou University
Shi-Jian Su: State Key Laboratory of Luminescent Materials and Devices and Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology
Xiandeng Hou: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University
Zhiyun Lu: Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University

DOI: https://doi.org/10.1038/s41467-022-34573-2
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 12

Abstract

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Here, the authors investigate naphthalimide-based compounds with cold triplet excitons utilized by triplet-triplet annihilation-mediated high-lying reverse intersystem crossing, and realize rate constant of over 109 s−1 with exciton utilization efficiency of 46.7% in organic light-emitting diodes.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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