articleAdvanced MaterialsApr 23, 2024Closed access

Tailored Fabrication of Full‐Color Ultrastable Room‐Temperature Phosphorescence Carbon Dots Composites with Unexpected Thermally Activated Delayed Fluorescence

LALin AiWXWenjuan XiangJXJiping XiaoHLHuimin LiuJYJingkun Yu

Zhengzhou University

PubMed
Indexed incrossrefpubmed

Abstract

Abstract The development of single‐system materials that exhibit both multicolor room‐temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) with tunable after glow colors and channels is challenging. In this study, four metal‐free carbon dots (CDs) are developed through structural tailoring, and panchromatic high‐brightness RTP is achieved via strong chemical encapsulation in urea. The maximum lifetime and quantum yield reaches 2141 ms and 56.55%, respectively. Moreover, CDs‐IV@urea, prepared via coreshell interaction engineering, exhibits a dual afterglow of red RTP and green TADF. The degree of conjugation and functional groups of precursors affects the binding interactions of…

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136
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14.82
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100%
References
77
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Authors

9

Topics & keywords

Topics
Keywords
  • Materials science
  • Phosphorescence
  • Fabrication
  • Fluorescence
  • Composite material
  • Optoelectronics
  • Activated carbon
  • Nanotechnology
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