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Materials 2017, 10(2), 97; doi:10.3390/ma10020097

Gold Nanoparticles in Photonic Crystals Applications: A Review

Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00187 Rome, Italy
Academic Editor: Ilaria Fratoddi
Received: 30 November 2016 / Revised: 11 January 2017 / Accepted: 12 January 2017 / Published: 24 January 2017
(This article belongs to the Special Issue Noble Metal Nanoparticles)
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Abstract

This review concerns the recently emerged class of composite colloidal photonic crystals (PCs), in which gold nanoparticles (AuNPs) are included in the photonic structure. The use of composites allows achieving a strong modification of the optical properties of photonic crystals by involving the light scattering with electronic excitations of the gold component (surface plasmon resonance, SPR) realizing a combination of absorption bands with the diffraction resonances occurring in the body of the photonic crystals. Considering different preparations of composite plasmonic-photonic crystals, based on 3D-PCs in presence of AuNPs, different resonance phenomena determine the optical response of hybrid crystals leading to a broadly tunable functionality of these crystals. Several chemical methods for fabrication of opals and inverse opals are presented together with preparations of composites plasmonic-photonic crystals: the influence of SPR on the optical properties of PCs is also discussed. Main applications of this new class of composite materials are illustrated with the aim to offer the reader an overview of the recent advances in this field. View Full-Text
Keywords: gold nanoparticles; composite materials; photonic crystals; opals; inverse opals; plasmonic; plasmonic photonic crystals gold nanoparticles; composite materials; photonic crystals; opals; inverse opals; plasmonic; plasmonic photonic crystals
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Venditti, I. Gold Nanoparticles in Photonic Crystals Applications: A Review. Materials 2017, 10, 97.

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