Simplifying complexity: integrating color science for predictable full-color and on-demand persistent luminescence
Guowei Xiao1, Xiaoyan Wang1, Xiaoyu Fang2
1College of Textiles & Clothing, Qingdao University Qingdao Shandong 266071 China changhai_xu@qdu.edu.cn.
Chemical Science
|October 4, 2024
Summary
Researchers developed a new method for creating full-color ultralong room temperature phosphorescence (RTP) materials. This strategy uses disperse dyes and phosphorescence resonance energy transfer (PRET) for predictable and tunable afterglow in polymers.
Area of Science:
- Materials Science
- Photophysics
- Polymer Chemistry
Background:
- Ultralong room temperature phosphorescence (RTP) materials are crucial for advanced applications like displays and sensors.
- Achieving predictable, full-color ultralong RTP with tunable afterglow remains a significant scientific challenge.
- Existing coloration dye systems often lack the desired predictability and tunability for persistent luminescence.
Purpose of the Study:
- To develop a straightforward strategy for achieving predictable, full-color afterglow using disperse dyes in polymeric systems.
- To investigate the phosphorescence resonance energy transfer (PRET) process for color modulation in RTP materials.
- To establish an on-demand design strategy for customized ultralong RTP emission.
Main Methods:
- Incorporation of tetraacetylethylenediamine (TAED) as an unconventional luminophore into a polyurethane (PU) polymer host.
- Addition of three typical disperse dyes as guest emitters to modulate the green afterglow of the TAED-PU system.
- Utilizing the phosphorescence resonance energy transfer (PRET) process between the host and guest luminophores for color tuning.
Main Results:
- A polymer host with intrinsic green afterglow was successfully created using TAED in PU.
- Modulated afterglow covering the full visible light spectrum was achieved by incorporating disperse dyes.
- A high prediction accuracy of 88.89% for afterglow color was demonstrated, surpassing existing systems through PRET processes.
Conclusions:
- A novel and straightforward method for obtaining easily predictable ultralong RTP emission has been introduced.
- The study establishes an effective on-demand design strategy for constructing disperse dye-based full-color afterglow materials.
- This work successfully links fundamental color science principles with practical customization for advanced optoelectronic applications.
