Efficient and Color‐Tunable Dual‐Mode Afterglow from Large‐Area and Flexible Polymer‐Based Transparent Films for Anti‐Counterfeiting and Information Encryption

• Published in: Angewandte Chemie International Edition Vol. 61; no. 23; pp. e202201820 - n/a
• Main Authors: Yang, Yifan, Liang, Yaohui, Zheng, Yitao, Li, Jian‐An, Wu, Shiying, Zhang, Huaqing, Huang, Tepeng, Luo, Suilian, Liu, Cong, Shi, Guang, Sun, Fengqiang, Chi, Zhenguo, Xu, Bingjia
• Format: Journal Article
• Language: English
• Published: WEINHEIM Wiley 07.06.2022; Wiley Subscription Services, Inc
• Edition: International ed. in English
• Subjects: Afterglow; Anti-Counterfeiting; Chemistry; Chemistry, Multidisciplinary; Color; Counterfeiting; Doped Polymer Films; Phosphorescence; Physical Sciences; Polymer films; Polymers; Polyvinyl alcohol; Science & Technology; Thermally Activated Delayed Fluorescence; Doped Polymer Films; Afterglow; Phosphorescence; ROOM-TEMPERATURE PHOSPHORESCENCE; Thermally Activated Delayed Fluorescence; Anti-Counterfeiting

It remains a great challenge to develop polymer‐based materials with efficient and color‐tunable organic afterglow. Two indolocarbazole derivatives IaCzA and IbCzA have been synthesized and doped into poly(vinyl alcohol) (PVA) matrices. It is found that the resulting films can produce unique dual‐mo...