Survey of Plasmonic Nanoparticles: From Synthesis to Application

Abstract

The unique properties of plasmonic nanostructures have fuelled research based on the tremendous amount of potential applications. Their tailor‐made assemblies in combination with the tunable size and morphology of the initial building blocks allow for the creation of materials with a desired optical response. In this respect, it is crucial to synthesize nanoparticles with a defined shape that are at the core of such developments. Moreover, the interaction of individual nanoparticles with an incident electromagnetic field cannot only be influenced by their structure, but in fact, also by their spatial arrangement to each other. To harvest such opportunities, a profound theoretical understanding of these interactions is required as well as concise strategies to create such ordered assemblies. A quantitative evaluation of their optical properties can only be conducted when discrete structures of high uniformity can be achieved. As a consequence, separation steps have to be applied in order to obtain materials of high purity and uniformity. This also allows for an easier structural characterization of the nanoparticles and their assembled superstructures. In this progress report, an overview about the current development in this field of research is provided.

Characteristics of localized surface plasmons excited on mixed monolayers composed of self-assembled Ag and Au nanoparticles

“…[1][2][3][4][5] Localized surface plasmon resonance (LSPR) excited on novel metal NPs are one of the representative functions originating from nanostructures, which can be widely utilized for various devices to improve their optical or optoelectronic properties. [1][2][3][4][5] Localized surface plasmon resonance (LSPR) excited on novel metal NPs are one of the representative functions originating from nanostructures, which can be widely utilized for various devices to improve their optical or optoelectronic properties.…”

Future prospects of luminescent nanomaterial based security inks: from synthesis to anti-counterfeiting applications

“…By using this method the morphology of nanoparticles (for examples; stars, rods, plates, and prisms) can 20 be controlled by changing the reaction conditions like temperature, solvent and additives etc. 272,[275][276][277][278][279][280] Furthermore, the choice of solvent is also a very important factor for the synthesis of plasmonic nanoparticles. It can potentially modify the nucleation, growth, and shape of nanoparticles because of its 25 proficiency to interact with metal ions and surfaces as well as the preferable attachment to distinct crystal facets of certain metals (e.g., silver).…”

Ordered Arrangement and Optical Properties of Silica‐Stabilized Gold Nanoparticle–PNIPAM Core–Satellite Clusters for Sensitive Raman Detection

“…The unique properties of metal nanoparticles (NPs), that is, gold or silver nanoparticles, and assemblies thereof, motivated the synthesis of many different kinds of nanoparticle architectures, starting off with 1D NP dimers and NP chains, 2D‐ordered sheets, and 3D clusters, pyramids, etc . Depending on their geometry, material composition, degree of order, and periodicity, these nanoparticle assemblies show a large variety of interesting optical phenomena.…”