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Multicolor Afterglow from Carbon Dots: Preparation and Mechanism
Zhun Ran1, Jinkun Liu1, Jianle Zhuang1
1Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, P. R. China.
Small Methods
|October 28, 2023
Summary
This review details multicolor carbon dots (CDs) for long afterglow applications. It analyzes preparation strategies and luminescence mechanisms, highlighting challenges and future directions for these advanced materials.
Area of Science:
- Materials Science
- Nanotechnology
- Photochemistry
Background:
- Carbon dots (CDs) are emerging long afterglow luminescent materials.
- Current research focuses on developing CDs-based materials with diverse properties.
- A key challenge is achieving multicolor long afterglow emission from CDs.
Purpose of the Study:
- To systematically review preparation strategies for multicolor afterglow from CDs.
- To analyze the luminescence mechanisms behind multicolor afterglow in CDs.
- To discuss applications, challenges, and future directions in this field.
Main Methods:
- Summarizing preparation strategies based on raw materials and reaction parameters.
- Analyzing luminescence mechanisms considering factors like carbonization, surface state, aggregation, temperature, excitation, emission centers, and energy transfer.
- Compiling reported applications of multicolor afterglow CDs.
Main Results:
- Various preparation strategies for multicolor afterglow CDs have been developed.
- Luminescence mechanisms are influenced by multiple factors including material properties and external conditions.
- Emission spectra can span from UV to near-infrared, enabling diverse applications.
Conclusions:
- Understanding preparation and mechanisms is crucial for advancing multicolor afterglow CDs.
- Further research is needed to overcome current challenges and explore new applications.
- Multicolor afterglow CDs hold significant potential for future technological advancements.
