Effect of Silver and Gold Nanoparticles on the Spectral and Luminescent Properties of a Merocyanine Dye

A. K. Aimukhanov, N. Kh Ibrayev, A. A. Ishchenko, A. V. Kulinich

Research output: Contribution to journal › Article

Abstract

An increase in the concentration of silver nanoparticles (NP) initially causes an increase and then a decrease in the absorption and fluorescence intensities of a solution of tetramethinemerocyanine dye derived from indole and thiobarbituric acid. In the case of gold NP, the dye absorption remains unchanged, while fluorescence is reduced. The lifetime of the merocyanine fluorescent state does not change upon the addition of both types of nanoparticles. It is suggested that the observed effects are related to the action of plasmons in the metal nanoparticles on the electronic processes in the dye molecules.

Original language	English
Pages (from-to)	369-374
Number of pages	6
Journal	Theoretical and Experimental Chemistry
Volume	54
Issue number	6
DOIs	https://doi.org/10.1007/s11237-019-09583-9
Publication status	Published - 15 Jan 2019
Externally published	Yes

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Keywords

ablation
absorption and fluorescence spectra
fluorescence kinetics
merocyanine
plasmon resonance
silver and gold nanoparticles

ASJC Scopus subject areas

Chemistry(all)

Cite this

Aimukhanov, A. K., Ibrayev, N. K., Ishchenko, A. A., & Kulinich, A. V. (2019). Effect of Silver and Gold Nanoparticles on the Spectral and Luminescent Properties of a Merocyanine Dye. Theoretical and Experimental Chemistry, 54(6), 369-374. https://doi.org/10.1007/s11237-019-09583-9

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AU - Aimukhanov, A. K.

AU - Ibrayev, N. Kh

AU - Ishchenko, A. A.

AU - Kulinich, A. V.

PY - 2019/1/15

Y1 - 2019/1/15

N2 - An increase in the concentration of silver nanoparticles (NP) initially causes an increase and then a decrease in the absorption and fluorescence intensities of a solution of tetramethinemerocyanine dye derived from indole and thiobarbituric acid. In the case of gold NP, the dye absorption remains unchanged, while fluorescence is reduced. The lifetime of the merocyanine fluorescent state does not change upon the addition of both types of nanoparticles. It is suggested that the observed effects are related to the action of plasmons in the metal nanoparticles on the electronic processes in the dye molecules.

AB - An increase in the concentration of silver nanoparticles (NP) initially causes an increase and then a decrease in the absorption and fluorescence intensities of a solution of tetramethinemerocyanine dye derived from indole and thiobarbituric acid. In the case of gold NP, the dye absorption remains unchanged, while fluorescence is reduced. The lifetime of the merocyanine fluorescent state does not change upon the addition of both types of nanoparticles. It is suggested that the observed effects are related to the action of plasmons in the metal nanoparticles on the electronic processes in the dye molecules.

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KW - absorption and fluorescence spectra

KW - fluorescence kinetics

KW - merocyanine

KW - plasmon resonance

KW - silver and gold nanoparticles

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10.1007/s11237-019-09583-9