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Optics and Spectroscopy, 2023 Volume 131, Issue 12, Pages 1720–1725 (Mi os1556)

Nanophotonics

Spectral properties of chiral carbon nanoparticles based on glutathione

E. A. Stepanidenkoa, M. D. Miruschenkoa, A. V. Korolevab, E. V. Zhizhinb, A. M. Mitroshinac, P. S. Parfenova, S. A. Cherevkova, E. V. Ushakovaa

a International Research and Educational Center for Physics of Nanostructures, ITMO University, 197101 Saint-Petersburg, Russia
b Research Park, St. Petersburg State University, 199034 Saint-Petersburg, Russia
c Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 Saint-Petersburg, Russia

Abstract: In this work, carbon nanoparticles (C-dots) were obtained from solution of chiral L-glutathione molecules in formamide. The resulting C-dots have photoluminescence (PL) in the red region of the spectrum at 370–470 nm and a high quantum yield for this band, reaching 10.8%. In the circular dichroism spectra of these C-dots, a signal in the optical transition region of 370–470 nm, associated with $sp^2$-hybridized carbon domains doped with nitrogen and oxygen atoms was observed.

Keywords: carbon dots, red photoluminescence, circular dichroism, chirality, glutathione.

Received: 06.12.2023
Revised: 06.12.2023
Accepted: 11.12.2023

DOI: 10.61011/OS.2023.12.57409.5833-23



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