Issue 4, 2018

Bias-scanning based tunable LSPR sensor

Abstract

The principle and the characteristics of the bias-scanning based tunable localized surface plasmon resonance (LSPR) sensors for environmental refractive index have been theoretically and numerically investigated in detail. The sensors exhibit linear negative-shifts in the scattering-bias spectral position when the refractive index of the surrounding medium increases. By bias-scanning, a single-wavelength measurement for sensing the environmental refractive index can be realized effectively. In addition, we demonstrate that the sensing performance of the designed sensor can be adjusted by nano-scale manipulations of metal nanoparticles’ sizes and shapes. The proposed devices may pave the way for the development of electrochemical sensors that can convert spectrum scanning into bias scanning.

Graphical abstract: Bias-scanning based tunable LSPR sensor

Article information

Article type
Communication
Submitted
09 Nov 2017
Accepted
14 Dec 2017
First published
14 Dec 2017

Phys. Chem. Chem. Phys., 2018,20, 2146-2150

Bias-scanning based tunable LSPR sensor

L. Ran, Y. Tao, K. Guo, F. Shen, H. Zhou, Y. Sun, R. Zhang, Q. Zhou, J. Yang, Z. Yin and Z. Guo, Phys. Chem. Chem. Phys., 2018, 20, 2146 DOI: 10.1039/C7CP07565K

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