Search query: Metal/Semiconductor Hybrid Nanostructures for Plasmon-Enhanced Applications

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abstract: Hybrid nanostructures composed of semiconductor and plasmonic metal components are receiving extensive attention. They display extraordinary optical characteristics that are derived from the simultaneous existence and close conjunction of localized surface plasmon resonance and semiconduction, as well as the synergistic interactions between the two components. They have been widely studied for photocatalysis, plasmon enhanced spectroscopy, biotechnology, and solar cells. In this review, the developments in the field of (plasmonic metal)/semiconductor hybrid nanostructures are comprehensively described. The preparation of the hybrid nanostructures is first presented according to the semiconductor type, as well as the nanostructure morphology. The plasmonic properties and the enabled applications of the hybrid nanostructures are then elucidated. Lastly, possible future research in this burgeoning field is discussed.
author_names: Ruibin Jiang

Benxia Li

Caihong Fang

Jianfang Wang
title: Metal/Semiconductor hybrid nanostructures for plasmon enhanced applications.
venue: Advanced materials
year: 2014

author_names: Ruibin Jiang

Benxia Li

Caihong Fang

Jianfang Wang
title: Metal/Semiconductor Hybrid Nanostructures for Plasmon Enhanced Applications
year: 2014

abstract: Hybrid nanostructures composed of graphene or other two dimensional (2D) nanomaterials and plasmonic metal components have been extensively studied. The unusual properties of 2D materials are associated with their atomically thin thickness and 2D morphology, and many impressive structures enable the metal nanomaterials to establish various interesting hybrid nanostructures with outstanding plasmonic properties. In addition, the hybrid nanostructures display unique optical characteristics that are derived from the close conjunction of plasmonic optical effects and the unique physicochemical properties of 2D materials. More importantly, the hybrid nanostructures show several plasmonic electrical effects including an improved photogeneration rate, efficient carrier transfer, and a plasmon induced "hot carrier" playing a significant role in enhancing device performance. They have been widely studied for plasmon enhanced optical signals, photocatalysis, photodetectors (PDs) and solar cells. In this review, the developments in the field of metal/2D hybrid nanostructures are comprehensively described. Preparation of hybrid nanostructures is first presented according to the 2D material type, as well as the metal nanomaterial morphology. The plasmonic properties and the enabled applications of the hybrid nanostructures are then described. Lastly, possible future research in this promising field is discussed.
author_names: Xuanhua Li

Jinmeng Zhu

Bingqing Wei
title: Hybrid nanostructures of metal/two dimensional nanomaterials for plasmon enhanced applications.
venue: Chemical Society reviews
year: 2016

abstract: Correction for 'Hybrid nanostructures of metal/two dimensional nanomaterials for plasmon enhanced applications' by Xuanhua Li et al. Chem. Soc. Rev. 2016, 45, 3145 3187.
author_names: Xuanhua Li

Jinmeng Zhu

Bingqing Wei
title: Correction: Hybrid nanostructures of metal/two dimensional nanomaterials for plasmon enhanced applications.
venue: Chemical Society reviews
year: 2016

abstract: Fluorescence is a powerful tool in biochemistry, biophysics, forensic science, and biotechnology. Two main principal properties for any fluorophore, brightness and photostability, are fundamentally important to achieve a high level of sensitivity for detection. Therefore, improvements in the technique are strongly encouraged and pursued, such as new developments in terms of the technique sensitivity, the range of fluorophores, their stability, and the versatility of the experimental setups that help move this particular scientific research in biosensing and molecular imaging forward. Therefore, a new avenue is based on the use of plasmonic nanostructures in the enhancement of the collective photo physical properties including their absorption and fluorescence, known as "plasmon enhanced fluorescence." Such plasmonic enhancement is due to the localized surface plasmon resonance at the metal surface, which leads to increasing the exciton radiative recombination rate in the fluorophore and thereby improves the signal obtained and increases sensitivity. In addition, the plasmonic enhancement might depend on several parameters such as nanoparticle size and shape, metal type, and the spectral overlap in the absorption spectra and the type and the separation distance between both plasmonic nanoparticle and the fluorophore. Throughout this chapter, previous approaches are discussed, which are devoted to tracking the influence of plasmonic nanostructures on the photoluminescence of the fluorophores especially the hybrid nanocomposites based on plasmonic/quantum dots including semiconductor and carbon based nanoparticles. In addition, the possible applications of metal enhanced fluorescence nanohybrids in the biological and medical applications such as imaging and biosensing techniques.
author_names: Ahmed N Emam

Ahmed Sadek Mansour

Mona Bakr Mohamed

Gehad G Mohamed
title: Plasmonic Hybrid Nanocomposites for Plasmon Enhanced Fluorescence and Their Biomedical Applications
year: 2020

abstract: Abstract Generation of laser light harmonics is one of the nonlinear optical phenomena offering unique opportunities for the development of applications in fields like photonics, materials science, chemistry, or medicine. Traditional nonlinear crystals are millimetre scale, thus current trends of device miniaturization require alternative strategies for generating harmonics from micro and nano scaled objects. Recently, several research groups showed that plasmonic metal nanostructures can be useful for generating harmonics from nanoscale volumes. As a more efficient alternative to full metallic nanostructures, an increasing amount of effort is currently put into the study of hybrid nano architectures, obtained by combining a nonlinear active material as the source of harmonics, and a plasmonic nanostructure as the amplifier of the generated harmonics. Here, we review the current state of the art concerning laser harmonics generation with hybrid nonlinear/noble metal nanostructures. After giving brief introductions into the fields of harmonics generation and plasmonics, we highlight the different kinds of hybrid nanostructures that were successfully employed to generate enhanced second third or higher harmonics. We describe nanofabrication approaches, but also findings related to the physical mechanisms involved in the enhancement process, such as correlations between surface plasmon resonances and harmonic generation efficiency or the origin of the enhanced signal.
author_names: A Falamas

V Tosa

Cosmin Farcau
title: Hybrid architectures made of nonlinear active and metal nanostructures for plasmon enhanced harmonic generation
venue: Optical Materials
year: 2019

abstract: Plasmonic metal nanoparticles have recently attracted increasing interest due to their nanosized dimensions, tunable optical properties in the visible and near infrared regions of the spectrum and easy manufacturing. Although the optical properties of these sub wavelength objects arising from plasmonic resonances have been extensively investigated in both isolated and assembled structures, their rational integration in 1D semiconductor based devices for generation of engineered properties is a novel and vastly unexplored field. In particular, development of metal nanoparticle 1D semiconductor hybrid nanostructures has been hampered by a number of challenges including limited control of component assembly processes and modest theoretical and experimental understanding of fundamental physical phenomena occurring in such hybrids. In this feature article, we describe recent progress in fabrication methods and review the relevant plasmonic properties of metal nanoparticles that can be exploited to manipulate, enhance and optimize the performance of semiconductor nanowire based devices. Finally, we explore the enhanced properties of hybrid metal nanoparticle semiconductor nanowire structures and describe their application in optoelectronics and sensing.
author_names: Andrea Pescaglini

Daniela Iacopino
title: Metal nanoparticle semiconductor nanowire hybrid nanostructures for plasmon enhanced optoelectronics and sensing
year: 2015

abstract: Integration of gold and titania in a nanoscale core/shell architecture can offer large active metal/semiconductor interfacial areas and avoid aggregation and reshaping of the metal nanocrystal core. Such hybrid nanostructures are very useful for studying plasmon enhanced/enabled processes and have great potential in light harvesting applications. Herein we report on a facile route to (gold nanocrystal core)(titania shell) nanostructures with their plasmon band synthetically variable from ~700 nm to over 1000 nm. The coating method has also been applied to other mono and bi metallic Pd, Pt, Au nanocrystals. The gold/titania nanostructures have been employed as the scattering layer in dye sensitized solar cells, with the resultant cells exhibiting a 13.3% increase in the power conversion efficiency and a 75% decrease in the scattering layer thickness. Moreover, under resonant excitation, the gold/titania nanostructures can efficiently utilize low energy photons to generate reactive oxygen species, including singlet oxygen and hydroxyl radicals.
author_names: Caihong Fang

Henglei Jia

Shuai Chang

Qifeng Ruan

Peng Wang

Tao Chen

Jianfang Wang
title: (Gold core)(titania shell) nanostructures for plasmon enhanced photon harvesting and generation of reactive oxygen species
year: 2014

abstract: Herein, we report the successful application of hybrid Au Ag nanoparticles (NPs) and nanochains (NCs) in the harvesting of visible light energy for selective hydrogenation reactions. For individual Au@Ag NPs with Au25 cores, the conversion and turnover frequency (TOF) are approximately 8 and 10 times higher than those of Au25 NPs, respectively. Notably, after the self assembly of the Au@Ag NPs, the conversion and TOF of 1D NCs were approximately 2.5 and 2 times higher than those of isolated Au@Ag NPs, respectively, owing to the coupling of surface plasmon and the increase in the rate at which hot (energetic) electrons are generated with the formation of plasmonic hot spots between NPs. Furthermore, the surface enhanced Raman scattering (SERS) activity of 1D Au@Ag NCs was strengthened by nearly 2 orders of magnitude.
author_names: Zhen Yin

Ye Wang

Chuqiao Song

Liheng Zheng

Na Ma

Xi Liu

Siwei Li

Lili Lin

Mengzhu Li

Yao Xu

Weizhen Li

Gang Hu

Zheyu Fang

Ding Ma
title: Hybrid Au Ag Nanostructures for Enhanced Plasmon Driven Catalytic Selective Hydrogenation through Visible Light Irradiation and Surface Enhanced Raman Scattering.
venue: Journal of the American Chemical Society
year: 2018

abstract: Organic single crystals have attracted great attention because of their advantages such as high carrier mobility and high thermal stability. Amplified spontaneous emission (ASE) is an important parameter for the optoelectronic applications of organic single crystals. Here, surface plasmon enhanced ASE from the organic single crystals has been demonstrated by integrating graphene/copper nanoparticle (Cu NP) hybrid nanostructures. Graphene is fully accommodating to the topography of Cu NPs by the transfer free as grown method for the configuration of the hybrid nanostructures, which makes full electrical contact and strong interactions between graphene and the local electric field of surface plasmon resonances. The enhanced localized surface plasmon resonances induced by the hybrid nanostructures result in an enhanced intensity and lowered threshold of ASE from the organic single crystals. Moreover, the as grown graphene sheets covering fully and uniformly on the Cu NPs act as a barrier against oxidation, and results in an enhanced stability of the fluorescence from the crystals.
author_names: Yun-fei Li

Jing Feng

F Dong

Ran Ding

Zhenyu Zhang

Xu-Lin Zhang

Yang Chen

Yangang Bi

Hong-Bo Sun
title: Surface plasmon enhanced amplified spontaneous emission from organic single crystals by integrating graphene/copper nanoparticle hybrid nanostructures.
venue: Nanoscale
year: 2017