Achieving Seconds-to-Hours Duration-Tunable Organic Long Persistent Luminescence from Carbon Dots-Based Exciplex Systems by Energy Gaps Regulation†
Yixuan Xu
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorCorresponding Author
Kai Jiang
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
E-mail: [email protected]; [email protected]Search for more papers by this authorLinger Feng
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorXinyuan Tong
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorZuxu Zhou
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorFengshi Li
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorYi Zhang
State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorJiaren Du
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorCorresponding Author
Hengwei Lin
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
E-mail: [email protected]; [email protected]Search for more papers by this authorYixuan Xu
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorCorresponding Author
Kai Jiang
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
E-mail: [email protected]; [email protected]Search for more papers by this authorLinger Feng
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorXinyuan Tong
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorZuxu Zhou
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorFengshi Li
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorYi Zhang
State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorJiaren Du
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
Search for more papers by this authorCorresponding Author
Hengwei Lin
International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122 China
E-mail: [email protected]; [email protected]Search for more papers by this authorComprehensive Summary
Duration-tunable afterglow materials have garnered considerable attention in various applications. Herein, carbon dots (CDs)-based long persistent luminescence (LPL) composites with a tunable duration in an ultrawide range of seconds-to-hours levels were designed and prepared for the first time. In contrast to the established CD-based afterglow materials, we reported that CD-based composites exhibit LPL in the form of exciplexes and long-lived charge-separated states, enabling the LPL to be prolonged from several seconds to over one hour, exceeding the typical regulation range (limited to 1 min). Further studies revealed that the relationship between the excited and charge-transfer states of CDs plays a pivotal role in activating the LPL and regulating its duration. Furthermore, these composites exhibited high photoluminescence (PL) quantum yields of up to 60.63%, and their LPL was robust under ambient conditions, even in aqueous media. Their robust and superior LPL performance endows these composites with a strong competitive advantage in dynamic display systems, such as tags for time-resolved data encryption and displays of the remaining time of takeaways. This study offers an approach to preparing CDs-based LPL composites with tunable durations and may provide new insights for the development of rare-earth-free LPL materials.
Supporting Information
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Appendix S1: Supporting Information |
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