Influence of initial temperature of water analyte on the readings of optical sensors based on surface plasmon resonance

Abstract

The analysis of additional aspects of thermal influence on the sensory effect of the three-layer optical structure “prism - gold nanolayer - water” was continued. Here, the influence of the initial temperature of the “gold nanolayer - water” system on the surface plasmon resonance wavelength change is studies. It was established that the change in the value of the sensor effect along the wavelength of the surface plasmon resonance in the range of initial temperatures from 20 °C to 25 °C is insignificant. With an increase in the initial temperature to ∼100 °C, the change in the surface plasmon resonance wavelength can reach 0.75%, and is fixed experimentally.

Keywords:

• Analyte
• plasmon resonance
• sensor
• SPR wavelength
• temperatures

Acknowledgments

The authors are grateful to the International Conference “Nanotechnologies and Nanomaterials” NANO-2023 for the opportunity to present this research at the conference.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The work was supported by the Ministry of Education and Science of Ukraine in the framework of projects, which are performed on the basis of Taras Shevchenko National University of Kyiv.