Innovations in the Solid‐State Fluorescence of Carbon Dots: Strategies, Optical Manipulations, and Applications

Abstract Carbon dots (CDs)—carbon nanoparticles smaller than 10 nm—have attracted widespread attention owing to their excellent optical properties. However, high‐performing CDs often suffer from severe aggregation‐induced quenching in the solid state, which limits their commercial applicability. The...

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Bibliographic Details
Published inAdvanced functional materials Vol. 33; no. 41
Main Authors Wang, Haolin, Ai, Lin, Song, Haoqiang, Song, Ziqi, Yong, Xue, Qu, Songnan, Lu, Siyu
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc 01.10.2023
Subjects
Carbon dots
Fluorescence
Materials science
Nanoparticles
Optical properties
Optoelectronics
Photoluminescence
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Summary:Abstract Carbon dots (CDs)—carbon nanoparticles smaller than 10 nm—have attracted widespread attention owing to their excellent optical properties. However, high‐performing CDs often suffer from severe aggregation‐induced quenching in the solid state, which limits their commercial applicability. Therefore, CD materials with efficient solid‐state luminescence are sought. As research on the structure and photoluminescence mechanisms of CDs has intensified in recent years, strategies to construct fluorescent solid‐state CD materials and tune their emissions have broadened. This article reviews recent advances in the strategies and mechanisms for attaining solid‐state fluorescence in CDs, describes specific ways to tune the optical properties of this fluorescence, introduces the latest applications of the resulting CDs to optoelectronics, biology, and sensing, and finally considers the prospects for future application and current challenges facing the development of solid‐state fluorescence in CDs.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.202303756