Improved localized surface plasmon resonance index sensitivity based on chemically-synthesized gold nanoparticles on indium tin oxide surfaces.

Author(s) Zhu, J.; Li, X.; Zheng, W.; Wang, B.; Tian, Y.
Journal Nanotechnology
Date Published 2018 Feb 02

The results of this reported work indicated that gold nanoparticle arrays self-assembled on indium tin oxide (ITO) glasses can obtain broader localized surface plasmon resonance (LSPR) wavelength range and higher sensitivity than the bare quartz. The results of surface electric field calculated using finite difference time domain showed that the electric field of nanoparticles on ITO glasses is enhanced and the repulsive forces within each particle is weakened. According to the dipolar interaction mechanism, a weakened repulsive forces within each particle lead to a lower resonance frequency and a strong redshift of the LSPR spectra.

DOI 10.1088/1361-6528/aa9c05
ISSN 1361-6528
Citation Nanotechnology. 2018;29(5):055701.

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