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Doronin IV, Kalmykov AS, Zyablovsky AA, et al. Resonant Concentration-Driven Control of Dye Molecule Photodegradation via Strong Optical Coupling to Plasmonic Nanoparticles. Nano Lett. 2021;22(1):105-110doi: 10.1021/acs.nanolett.1c03277.
Doronin, I. V., Kalmykov, A. S., Zyablovsky, A. A., Andrianov, E. S., Khlebtsov, B. N., Melentiev, P. N., & Balykin, V. I. (2022). Resonant Concentration-Driven Control of Dye Molecule Photodegradation via Strong Optical Coupling to Plasmonic Nanoparticles. Nano letters, 22(1), 105-110. https://doi.org/10.1021/acs.nanolett.1c03277
Doronin, Ilya V, et al. "Resonant Concentration-Driven Control of Dye Molecule Photodegradation via Strong Optical Coupling to Plasmonic Nanoparticles." Nano letters vol. 22,1 (2022): 105-110. doi: https://doi.org/10.1021/acs.nanolett.1c03277
Doronin IV, Kalmykov AS, Zyablovsky AA, Andrianov ES, Khlebtsov BN, Melentiev PN, Balykin VI. Resonant Concentration-Driven Control of Dye Molecule Photodegradation via Strong Optical Coupling to Plasmonic Nanoparticles. Nano Lett. 2022 Jan 12;22(1):105-110. doi: 10.1021/acs.nanolett.1c03277. Epub 2021 Dec 15. PMID: 34910482.
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Nano Lett. 2022 Jan 12;22(1):105-110. doi: 10.1021/acs.nanolett.1c03277. Epub 2021 Dec 15.

Resonant Concentration-Driven Control of Dye Molecule Photodegradation via Strong Optical Coupling to Plasmonic Nanoparticles.

Nano letters

Ilya V Doronin, Alexey S Kalmykov, Alexander A Zyablovsky, Evgeny S Andrianov, Boris N Khlebtsov, Pavel N Melentiev, Victor I Balykin

Affiliations

  1. Dukhov Research Institute of Automatics (VNIIA), 22 Sushchevskaya, Moscow 127055, Russia.
  2. Moscow Institute of Physics and Technology, 9 Institutskiy per., Moscow 141700, Russia.
  3. Institute for Theoretical and Applied Electromagnetics, 13 Izhorskaya, Moscow 125412, Russia.
  4. Institute of Spectroscopy RAS, Moscow 108840, Russia.
  5. Kotelnikov Institute of Radioengineering and Electronics RAS, 11-7 Mokhovaya, Moscow 125009, Russia.
  6. Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia.

PMID: 34910482 DOI: 10.1021/acs.nanolett.1c03277

Abstract

Photobleaching is one of the basic chemical processes that occur naturally in organic molecules. In this work, we investigate the quantum dynamics of Cy 7.5 dye molecules optically coupled to Au nanorod particles and experimentally demonstrate the decrease of the photobleaching rate in this hybrid system. We discover the effect of a resonance-like behavior not observed before for any type of emitter─the photobleaching rate of the dye molecules reaches a minimum for a suitable number of molecules coupled to the nanoparticle. The manifestation of the effect is the consequence of shifts in the energy levels in the hybrid system caused by the change in the number of molecules coupled to a nanoparticle. The energy shifts are the prerequisite for the effective depopulation of the triplet level, which is responsible for the photodegradation mechanism. The discovered effect paves the way for increasing the efficiency of optoelectronic and photovoltaic devices.

Keywords: core−shell nanoparticles; dye molecules; photobleaching; strong coupling

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