Controlled growth of plasmonic heterostructures and their applications

Abstract

Plasmonic nanocrystals with unique properties have been extensively studied in the past decades. A combination of plasmonic materials with other characteristic materials of metals and semiconductors leads to properties far beyond single-component materials and excellent performances in many optical-related applications. In this review, we summarize the recent advances in the controlled growth of plasmonic heterostructures with a specific composition, morphology, size, and structural symmetry. Plasmonenhanced properties of the heterostructures and their excellent performances in applications are also discussed. The synthesis strategies and the intriguing properties of the plasmonic heterostructures provide great opportunity for applications in plasmon-enhanced nonlinear optics, optical spectroscopy, photocatalysis, solar energy conversion, and so on.

Construction of Plasmonic Metal@Semiconductor Core–Shell Photocatalysts: From Epitaxial to Nonepitaxial Strategies

“…[ 31,39–43 ] In the last decade, a number of excellent reviews on plasmonic hybrid photocatalysts have been published, which detailedly interpret the mechanisms of plasmon‐enhanced photocatalysis as well as how to regulate the properties of materials toward different photocatalytic applications. [ 27,31–38,44–46 ] In this review, our effort is to outline the recent synthetic breakthroughs in fabrication and modulation of plasmonic metal@semiconductor core–shell photocatalysts, with particular emphasis on the mechanism of the synthetic process and the associating impacts on the crystallographic and physical properties of the resultant materials. The understanding in this scope provides importance in architecting the plasmonic hybrid nanostructured photocatalysts through promoting the synergistic interactions between plasmonic metal and semiconductor.…”

Portable wastewater treatment system based on synergistic photocatalytic and persulphate degradation under visible light

“…S7, the COD and TOC removal of 74.8% and 62.3%, respectively, were achieved after 240 min degradation with H-AB@RTNRs in the thin-layer cell system under visible light irradiation. Moreover, the biodegradability variation of the wastewater sample was analyzed by calculating the average oxidation state (AOS) and carbon oxidation state (COS) by Equations (11) and (12):…”

“…However, pristine TiO 2 photocatalysts can only be stimulated by UV irradiation because the bandgap of pristine TiO 2 is higher than 3.0 eV, which seriously impedes its utilization in low-cost and environmentally friendly solar energy applications [8]. According to previous studies, building heterojunctions between anatase and rutile TiO 2 effectively enhances solar energy utilization and PC efficiency [9][10][11][12]. Though the energy level position of the anatase/rutile heterophase junction is unclear, markedly improved separation rates of photogenerated electrons and holes have been experimentally verified [13][14][15].…”

In Situ Partial Sulfidation for Preparing Cu/Cu2−xS Core/Shell Nanorods with Enhanced Photocatalytic Degradation

“…On this basis, the growth of semiconductor components on plasmonic NRs forms metal-semiconductor heterogeneous nanostructures with a fascinating interaction between the plasmon and semiconductor [6][7][8][9]. These nanostructured materials show promising potentials in the applications of energy devices, photocatalytic hydrogen production, second-harmonic generation enhancement and ultrafast, optical, nonlinear properties [9,10].…”