Localized surface plasmon resonance on Au nanoparticles: tuning and exploitation for performance enhancement in ultrathin photovoltaics

Abstract

We report a detailed correlation analysis of the size, shape, and distribution of Au nanoparticles (NPs) on fine-tuning of localized surface plasmon resonance and optical absorption cross-section.

Cu@Au self-assembled nanoparticles as SERS-active substrates for (bio)molecular sensing

“…Raman scattering has emerged as a powerful technique for chemical sensing facilitating the detection of target molecules at trace levels and has demonstrated utility for use with biological samples such as tissues and living cells [1]. However, the performance of SERS substrates based on bimetallic NPs strongly depends on their morphological and structural properties (as a direct consequence of electromagnetic coupling), which are unequivocally controlled by the preparation method [2,3]. The development of SERS substrates with a high surface-to-volume ratio able to generate hot spots has become one of the primary goals in the advancement of analytical sensors.…”

Investigation of Dual-Ion Beam Sputter-Instigated Plasmon Generation in TCOs: A Case Study of GZO

“…Ultrathin metal layers and nanoparticles (noble metals, e.g., Au, Ag, Cu, etc. ), support collective oscillations of free electrons (plasmonics) at optical frequencies. − Such plasmonic features of metal nanostructures, having the ability of electromagnetic field coupling and confinement, due to sustained electronic oscillations, are appreciable for light manipulation. Electromagnetic field confinement in metals made plasmonics an area of interest for light harvesting in solar cells, photodetectors, optical sensing, imaging, and drug delivery. − However, few challenges related to technical and fabrication processes are the main obstacles to complete realization of the plasmonic-based commercial grade devices.…”

Oxide-based composites: applications in thermo-photocatalysis

“…In the 2010s, localized surface plasmon resonance (LSPR) has attracted the attention of scientific community due to its potential applications such as photovoltaics 23,24 , surface-enhanced Raman scattering sensing 25,26 , photothermal actuators 27,28 , and photocatalysis [29][30][31] . One of the most interesting applications of LSPR is enhancing visible or near infrared light activity in photocatalysis 14,29,32,33 .…”