Multicolor hyperafterglow from isolated fluorescence chromophores

Xiao Zhang, Mingjian Zeng, Yewen Zhang, Chenyu Zhang, Zhisheng Gao, Fei He, Xudong Xue, Huanhuan Li, Ping Li, Gaozhan Xie, Hui Li, Xin Zhang, Ningning Guo, He Cheng, Ansheng Luo, Wei Zhao, Yizhou Zhang, Ye Tao (), Runfeng Chen () and Wei Huang ()
Additional contact information
Xiao Zhang: Nanjing University of Posts & Telecommunications
Mingjian Zeng: Nanjing University of Posts & Telecommunications
Yewen Zhang: Nanjing University of Posts & Telecommunications
Chenyu Zhang: Nanjing University of Posts & Telecommunications
Zhisheng Gao: Nanjing University of Posts & Telecommunications
Fei He: Nanjing University of Posts & Telecommunications
Xudong Xue: Nanjing University of Posts & Telecommunications
Huanhuan Li: Nanjing University of Posts & Telecommunications
Ping Li: Nanjing University of Posts & Telecommunications
Gaozhan Xie: Nanjing University of Posts & Telecommunications
Hui Li: Nanjing University of Posts & Telecommunications
Xin Zhang: Nanjing University of Posts & Telecommunications
Ningning Guo: Nanjing University of Posts & Telecommunications
He Cheng: Nanjing University of Posts & Telecommunications
Ansheng Luo: Nanjing University of Posts & Telecommunications
Wei Zhao: Nanjing University of Posts & Telecommunications
Yizhou Zhang: Institute of Advanced Materials and Flexible Electronics (IAMFE) Nanjing University of Information Science and Technology
Ye Tao: Nanjing University of Posts & Telecommunications
Runfeng Chen: Nanjing University of Posts & Telecommunications
Wei Huang: Nanjing University of Posts & Telecommunications

Nature Communications, 2023, vol. 14, issue 1, 1-9

Abstract: Abstract High-efficiency narrowband emission is always in the central role of organic optoelectronic display applications. However, the development of organic afterglow materials with sufficient color purity and high quantum efficiency for hyperafterglow is still great challenging due to the large structural relaxation and severe non-radiative decay of triplet excitons. Here we demonstrate a simple yet efficient strategy to achieve hyperafterglow emission through sensitizing and stabilizing isolated fluorescence chromophores by integrating multi-resonance fluorescence chromophores into afterglow host in a single-component copolymer. Bright multicolor hyperafterglow with maximum photoluminescent efficiencies of 88.9%, minimum full-width at half-maximums (FWHMs) of 38 nm and ultralong lifetimes of 1.64 s under ambient conditions are achieved. With this facilely designed polymer, a large-area hyperafterglow display panel was fabricated. By virtue of narrow emission band and high luminescent efficiency, the hyperafterglow presents a significant technological advance in developing highly efficient organic afterglow materials and extends the domain to new applications.

Date: 2023
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DOI: 10.1038/s41467-023-36105-y

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