Guo Guangyao, Li Huanhuan, Yan Yingmeng, Zhao Wei, Gao Zhisheng, Cao Hengyu, Yan Xin, Li Hui, Xie Gaozhan, Chen Runfeng, Tao Ye, Huang Wei
State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China.
Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China.
Adv Mater. 2024 Nov;36(47):e2412100. doi: 10.1002/adma.202412100. Epub 2024 Oct 6.
The development of stimuli-responsive and color-tunable chiral organic afterglow materials has attracted great attention but remains a daunting challenge. Here, a simple yet effective strategy through the construction of a dynamic H-bonding network is proposed to explore the multi-color stimuli-responsive chiral afterglow by doping a self-designed chiral phosphorescent chromophore into a polyvinyl alcohol matrix. A stimuli-responsive deep blue chiral afterglow system with a lifetime of up to 3.35 s, quantum yield of 25.0%, and luminescent dissymmetry factor of up to 0.05 is achieved through reversible formation and breakdown of the H-bonding network upon thermal-heating and water-fumigating. Moreover, multi-color stimuli-responsive chiral afterglow can be obtained by chiral and afterglow energy transfer, allowing the establishment of afterglow information displays and high-level 4D encryption. This work not only offers a facile platform to develop advanced stimuli-responsive materials but also opens a new avenue for developing next-generation optical information technology with enhanced functionality and responsiveness.
刺激响应型和颜色可调的手性有机余辉材料的发展备受关注，但仍是一项艰巨的挑战。在此，我们提出了一种简单而有效的策略，即通过构建动态氢键网络，将自行设计的手性磷光发色团掺杂到聚乙烯醇基质中，以探索多色刺激响应型手性余辉。通过热加热和水熏蒸时氢键网络的可逆形成和分解，实现了一种刺激响应型深蓝色手性余辉体系，其寿命长达3.35秒，量子产率为25.0%，发光不对称因子高达0.05。此外，通过手性和余辉能量转移可获得多色刺激响应型手性余辉，从而实现余辉信息显示和高级4D加密。这项工作不仅为开发先进的刺激响应材料提供了一个简便的平台，也为开发具有增强功能和响应性的下一代光学信息技术开辟了一条新途径。
