Synergistic SERS enhancement and in situ monitoring of photocatalytic reactions in a plasmonic metal/ferroelectric hybrid system by the light-induced pyroelectric effect

Abstract

The pyroelectric effect converts thermal energy into usable electrical energy. It is an ideal and effective strategy to enhance the surface-enhanced Raman scattering (SERS) detection sensitivity by tuning the electromagnetic...

Giant enhancement of the initial SERS activity for plasmonic nanostructures via pyroelectric PMN-PT

“…Apart from the piezoelectric effect, at present, there are few studies on introducing the pyroelectric effect into an SERS substrate as an active regulation strategy. 27,28 However, the current work simply attributed the signal enhancement to the electromagnetic field up-regulation effects. The role of CM caused by CT in a pyroelectric based SERS substrate has not been discussed.…”

Plasmonic‐Pyroelectric Materials and Structures

“…[117] A particularly promising application to exploit plasmonicpyroelectric hybrids is in the field of catalysis to enhance pyrocatalytic effects, photo-catalytic effects, or combined effects. The applications include exploiting the oxygen reduction reaction (ORR), [104] CO 2 reduction reaction (CO 2 -RR), [116] degradation of a dye in solutions, [81,105] and the detection of biomolecules, [106,107] as summarized in Figure 8. Pyro-catalytic systems have been widely reported in applications related to the degradation of organic contaminants and the disinfection of bacteria in an aqueous environment, primarily due to their potential non-toxic nature and high efficiency.…”

SERS hotspot engineering using external field assembly of a plasmonic magnetic nanocomposite with high sensitivity and uniformity

“…The ability to reuse magnetic nanoparticles (MNPs) not only promotes economic efficiency but also aligns with ecological sustainability by reducing both costs and the environmental impact. [4][5][6][7][8][9][10][11][12][13][14][15][16] Despite its potential, the practical application of magnetic SERS in realworld scenarios is hampered by a trio of formidable challenges: the inconsistent reproducibility across different batches, concerns over substrate stability, and the inherent nonuniformity of hotspot distribution. 17 To address these issues, recent advances have shied focus toward the integration of plasmonic magnetic nanocomposites with external elds to manipulate hotspot formation and positioning.…”