Ultralong Organic Phosphorescent Foams with High Mechanical Strength

• DOI: 10.1021/jacs.1c07674
• Publication Date: 2021-09-22T16:45:58Z
• Authors: Suzhi Cai; Zhifang Sun; He Wang; Xiaokang Yao; Huili Ma; Wenyong Jia; Shuxu Wang; Zhihao Li; Huifang Shi; Zhongfu An; Yasuhiro Ishida; Takuzo Aida; Wei Huang
• Keywords: Persistent luminescence

Ultralong organic phosphorescence (UOP) has aroused enormous interest in recent years. UOP materials are mainly limited to crystals or rigid host–guest systems. Their poor processability and mechanical properties critically hamper practical applications. Here, we reported a series of ultralong phosphorescent foams with high strength. Phosphorescence lifetime the foam can reach up 485.8 ms at room temperature. Impressively, lightweight gelatin bear compressive pressure 4.44 MPa. Moreover, emission polymer be tuned from blue orange through varying excitation wavelength. Experimental data theoretical calculations revealed that was ascribed fixation multiple hydrogen bonds clusters carbonyl groups. These results will allow for expanding scope luminescent foams, providing an ideal platform developing