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Issue 36, 2019
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Scanning probe microscopy for real-space observations of local chemical reactions induced by a localized surface plasmon

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Abstract

Localised surface plasmon (LSP) resonance has attracted considerable attention in recent years as an efficient driving force for chemical reactions. The chemical reactions induced by LSP are classified into two types, namely, redox reactions based on plasmon-induced charge separation (PICS) and chemical reactions induced by the direct interaction between LSP and molecules (plasmon-induced chemical reactions). Although both types of reactions have been extensively studied, the mechanisms of PICS and plasmon-induced chemical reactions remain unexplained and controversial because conventional macroscopic methods can hardly grasp the local chemical reactions induced by LSP. In order to obtain mechanistic insights, nanoscale observations and investigations are necessary. Scanning probe microscopy (SPM) is a powerful experimental tool to investigate not only the surface morphology but also the physical and chemical properties of samples at a high spatial resolution. In this perspective review, we first explain SPM combined with optical excitation, and then, review the recent studies using SPM techniques for real-space observations of the chemical reactions induced by LSP.

Graphical abstract: Scanning probe microscopy for real-space observations of local chemical reactions induced by a localized surface plasmon

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Article information


Submitted
15 Apr 2019
Accepted
08 Jul 2019
First published
08 Jul 2019

Phys. Chem. Chem. Phys., 2019,21, 19720-19731
Article type
Perspective

Scanning probe microscopy for real-space observations of local chemical reactions induced by a localized surface plasmon

E. Kazuma and Y. Kim, Phys. Chem. Chem. Phys., 2019, 21, 19720
DOI: 10.1039/C9CP02100K

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