
1.Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China
2.Center of Information Optical Technologies, ITMO University, Saint Petersburg, 197101, Russia
3.Shenzhen Research Institute, City University of Hong Kong, 518057, Shenzhen, China
Andrey L. Rogach (andrey.rogach@cityu.edu.hk)
Published:30 April 2022,
Published Online:27 March 2022,
Received:21 October 2021,
Revised:09 February 2022,
Accepted:04 March 2022
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Döring, A., Ushakova, E. & Rogach, A. L. Chiral carbon dots: synthesis, optical properties, and emerging applications. Light: Science & Applications, 11, 542-564 (2022).
Döring, A., Ushakova, E. & Rogach, A. L. Chiral carbon dots: synthesis, optical properties, and emerging applications. Light: Science & Applications, 11, 542-564 (2022). DOI: 10.1038/s41377-022-00764-1.
Carbon dots are luminescent carbonaceous nanoparticles that can be endowed with chiral properties
making them particularly interesting for biomedical applications due to their low cytotoxicity and facile synthesis. In recent years
synthetic efforts leading to chiral carbon dots with other attractive optical properties such as two-photon absorption and circularly polarized light emission have flourished. We start this review by introducing examples of molecular chirality and its origins and providing a summary of chiroptical spectroscopy used for its characterization. Then approaches used to induce chirality in nanomaterials are reviewed. In the main part of this review we focus on chiral carbon dots
introducing their fabrication techniques such as bottom-up and top-down chemical syntheses
their morphology
and optical/chiroptical properties. We then consider emerging applications of chiral carbon dots in sensing
bioimaging
and catalysis
and conclude this review with a summary and future challenges.
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