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Active molecular plasmonics: tuning surface plasmon resonances by exploiting molecular dimensions

By Chen Kai, Leong Eunice Sok Ping, Rukavina Michael, Nagao Tadaaki, Liu Yan Jun and Zheng Yuebing

Abstract

Molecular plasmonics explores and exploits the molecule–plasmon interactions on metal nanostructures to harness light at the nanoscale for nanophotonic spectroscopy and devices. With the functional molecules and polymers that change their structural, electrical, and/or optical properties in response to external stimuli such as electric fields and light, one can dynamically tune the plasmonic properties for enhanced or new applications, leading to a new research area known as active molecular plasmonics (AMP). Recent progress in molecular design, tailored synthesis, and self-assembly has enabled a variety of scenarios of plasmonic tuning for a broad range of AMP applications. Dimension (i.e., zero-, two-, and threedimensional) of the molecules on metal nanostructures has proved to be an effective indicator for defining the specific scenarios. In this review article, we focus on structuring the field of AMP based on the dimension of molecules and discussing the state of the art of AMP. Our perspective on the upcoming challenges and opportunities in the emerging field of AMP is also included

Topics: active molecular plasmonics, dimension, graphene, molecular switches, organic materials, plasmon–molecule interactions, polymers, surface plasmons, Physics, QC1-999
Publisher: De Gruyter
Year: 2015
DOI identifier: 10.1515/nanoph-2015-0007
OAI identifier: oai:doaj.org/article:d2a94d25f804467aa396be8eaea653fb
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