Optical properties of carbon dots in solvents with different polarity

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Author(s)

  • Evgeniia A. Stepanidenko
  • Irina A. Arefina
  • Sergei A. Cherevkov
  • Aliaksei Dubavik
  • Alexander V. Baranov
  • Anatoly V. Fedorov

Detail(s)

Original languageEnglish
Title of host publicationProceedings of SPIE
Subtitle of host publicationFourth International Conference on Applications of Optics and Photonics
PublisherSPIE
Volume11207
ISBN (Electronic)9781510631649
ISBN (Print)9781510631632
Publication statusPublished - May 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11207
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Title4th International Conference on Applications of Optics and Photonics, AOP 2019
PlacePortugal
CityLisbon
Period31 May - 4 June 2019

Abstract

Carbon dots are promising luminescent nanoparticles which possess unique optical properties together with the simplicity of their synthesis. The revealing of their energy level structure is a crucial for further implementation in various applications from biology to photonics. This work is devoted to the investigation of optical responses of citric acid-based carbon dots with respect to the chemical environment, as solvent polarity. Small spectral shifts of the luminescent and absorption bands for CDs are observed. Assuming the PL is originated from the emission of various luminescent centers in CDs we explain these shifts by their intensity redistribution within PL band in different solvents. The redistribution leads to blue shift of PL band in non-polar solvents, while in polar solvents strong dependence of PL band on polarity value is absent.

Research Area(s)

  • carbon dots, citric acid, energy structure, luminescence, solvent polarity

Citation Format(s)

Optical properties of carbon dots in solvents with different polarity. / Stepanidenko, Evgeniia A.; Arefina, Irina A.; Cherevkov, Sergei A.; Dubavik, Aliaksei; Xiong, Yuan; Baranov, Alexander V.; Fedorov, Anatoly V.; Ushakova, Elena V.; Rogach, Andrey L.

Proceedings of SPIE: Fourth International Conference on Applications of Optics and Photonics. Vol. 11207 SPIE, 2019. 112071X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11207).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review