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发布时间：2021-07-29

论文类型：期刊论文

发表时间：2021-07-21

发表刊物：MATERIALS RESEARCH EXPRESS

卷号：6

期号：6

ISSN号：2053-1591

关键字：carbon dots (cds); gaseous detonation; fluorescent; white light-emitting diodes (WLEDs)

摘要：The quenching-resistant solid-state fluorescent polymer carbon dots (SSFPCDs) were rapidly prepared by a one-step gaseous detonation approach within milliseconds using citric acid (CA) and urea as the precursors, which exhibited bright blue solid-state fluorescence with an excitation/emission maximum at 360/442 nm and an excellent film-forming ability by simple heat-treatment without additional curing agent. Moreover, SSFPCDs were employed to fabricate white light-emitting diodes (WLEDs) with a color coordinate of (0.31, 0.42) and a color temperature of 6249 K. This work not only provided a rapid pathway for preparation of SSFPCDs, but also achieved low-cost and environment-friendly SSFPCDs-based WLEDs.