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Issue 4, 2018
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Bias-scanning based tunable LSPR sensor

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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

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Publication details

The article was received on 09 Nov 2017, accepted on 14 Dec 2017 and first published on 14 Dec 2017

Article type: Communication
DOI: 10.1039/C7CP07565K
Citation: Phys. Chem. Chem. Phys., 2018,20, 2146-2150
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    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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