[PDF] Exciton Plasmon Interactions In Metal Semiconductor Nanostructures eBook

Author : Yikuan Wang
Publisher : LAP Lambert Academic Publishing
Page : 116 pages
File Size : 41,31 MB
Release : 2012-07
Category :
ISBN : 9783659166198

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Over the past decades, the use of surface plasmons (SPs) of noble metal nano-particles to control light emission on the nanometer scale has increased rapidly, due to their field enhancement and other special properties. With this boom in physics, chemistry, biomedical science and engineering has also come a rise in the need for understanding the dynamics of light emission in these systems. Traditional photoluminescence spectrum only gives limited information on quantum dot emission under SP resonances. This book, therefore, uses modern Time-Correlated Single Photon Counting technique and other approaches to study SPs in nanoparticle arrays, and their effects on semiconductor quantum dot emission. The observed SP resonances in metal nano-disc arrays enhances the CdSe/ZnS (core/shell) quantum dot emission in a way that is dependent on dipole emission angle and photon polarization, which is fully explained by quantum electrodynamics. This fundamental finding could be used to control the light emission in plasmonic device applications.

Author : Alexey A. Toropov
Publisher : Oxford University Press, USA
Page : 385 pages
File Size : 42,35 MB
Release : 2015
Category : Science
ISBN : 0199699313

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One of the most promising trends in modern nanophotonics is the employment of plasmonic effects in the engineering of advanced device nanostructures. This book implements the binocular vision of such a complex metal-semiconductor system, examining both the constituents and reviewing the characteristics of promising constructive materials.

Author : Satyabrata Mohapatra
Publisher : Elsevier
Page : 674 pages
File Size : 38,30 MB
Release : 2018-10-11
Category : Technology & Engineering
ISBN : 0128141352

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Noble Metal-Metal Oxide Hybrid Nanoparticles: Fundamentals and Applications sets out concepts and emerging applications of hybrid nanoparticles in biomedicine, antibacterial, energy storage and electronics. The hybridization of noble metals (Gold, Silver, Palladium and Platinum) with metal-oxide nanoparticles exhibits superior features when compared to individual nanoparticles. In some cases, metal oxides act as semiconductors, such as nano zinc oxide or titanium oxide nanoparticles, where their hybridization with silver nanoparticles, enhanced significantly their photocatalytic efficiency. The book highlights how such nanomaterials are used for practical applications. Examines the properties of metal-metal oxide hybrid nanoparticles that make them so adaptable Explores the mechanisms by which nanoparticles interact with each other, showing how these can be exploited for practical applications Shows how metal oxide hybrid nanomaterials are used in a range of industry sectors, including energy, the environment and healthcare

Author : Haixu Leng
Publisher :
Page : 420 pages
File Size : 38,88 MB
Release : 2018
Category :
ISBN :

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One of the reasons why nanoscience is so fascinating is that the size of the nano-systems is "just about right". They are large enough to have various complex properties, and at the same time they are small enough to be treated (calculated) by numerical methods. I studied the interaction between individual gold nanoparticles (in which plasmons are excited) and quantum dots (in which excitons are excited) experimentally and theoretically at the nanoscale. Coupling optical emitters (quantum dots) to plasmon resonances in metal nanostructures has long been investigated as a means to increase their spontaneous emission rates. This increased rate occurs for weak coupling between the emitter and plasmon; for intermediate coupling, a Fano resonance will be seen; under strong coupling, the system undergoes Rabi splitting into new, hybrid modes. To date, efforts at achieving strong coupling between plasmons and single emitters have mostly been studied in scattering measurements; however, Rabi splitting in the scattering spectrum is difficult to distinguish from the Fano interference, or induced transparency, that occurs at intermediate coupling strengths. Here, we report measurements of scattering and photoluminescence from individual coupled plasmon-emitter systems that consist of a single quantum dot in the gap between a gold nanoparticle and a silver film. Splitting of the modes in photoluminescence is a signature of the strong coupling effect. The measurements unambiguously demonstrated weak, intermediate, and strong coupling at room temperature. In a separate study, we found that the photoluminescence of a quantum dot splits into two modes as a nanometer-sized gold tip approaches the quantum dots on a gold substrate. The splitting in both cases was over 150 meV, which exceeded the plasmon cavity loss (definition of the strong coupling). These studies opened up the possibility of single-photon nonlinearities and other extreme light-matter interactions at the nanoscale at room temperature.

Author : Tupei Chen
Publisher : CRC Press
Page : 732 pages
File Size : 42,30 MB
Release : 2016-10-14
Category : Technology & Engineering
ISBN : 1315357003

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Semiconductor nanocrystals and metal nanoparticles are the building blocks of the next generation of electronic, optoelectronic, and photonic devices. Covering this rapidly developing and interdisciplinary field, the book examines in detail the physical properties and device applications of semiconductor nanocrystals and metal nanoparticles. It begins with a review of the synthesis and characterization of various semiconductor nanocrystals and metal nanoparticles and goes on to discuss in detail their optical, light emission, and electrical properties. It then illustrates some exciting applications of nanoelectronic devices (memristors and single-electron devices) and optoelectronic devices (UV detectors, quantum dot lasers, and solar cells), as well as other applications (gas sensors and metallic nanopastes for power electronics packaging). Focuses on a new class of materials that exhibit fascinating physical properties and have many exciting device applications. Presents an overview of synthesis strategies and characterization techniques for various semiconductor nanocrystal and metal nanoparticles. Examines in detail the optical/optoelectronic properties, light emission properties, and electrical properties of semiconductor nanocrystals and metal nanoparticles. Reviews applications in nanoelectronic devices, optoelectronic devices, and photonic devices.

Author : Jai Singh
Publisher : Springer
Page : 369 pages
File Size : 18,69 MB
Release : 2014-07-29
Category : Science
ISBN : 9812871314

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This book is expected to present state-of-the-art understanding of a selection of excitonic and photonic processes in useful materials from semiconductors to insulators to metal/insulator nanocomposites, both inorganic and organic. Among the featured applications are components of solar cells, detectors, light-emitting devices, scintillators and materials with novel optical properties. Excitonic properties are particularly important in organic photovoltaics and light emitting devices, as also in questions of the ultimate resolution and efficiency of new-generation scintillators for medical diagnostics, border security and nuclear non proliferation. Novel photonic and optoelectronic applications benefit from new material combinations and structures to be discussed.

Author : Olena Fesenko
Publisher : Springer Nature
Page : 447 pages
File Size : 45,65 MB
Release : 2023-03-01
Category : Science
ISBN : 3031181042

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This book highlights some of the latest advances in nanotechnology and nanomaterials from leading researchers in Ukraine, Europe and beyond. It features contributions presented at the 9th International Science and Practice Conference Nanotechnology and Nanomaterials (NANO2021), which was held on August 25–28, 2021 at Lviv Polytechnic National University, and was jointly organized by the Institute of Physics, the National Academy of Sciences of Ukraine, Lviv Polytechnic National University, University of Tartu (Estonia), University of Turin (Italy), Pierre and Marie Curie University (France), European Profiles S.A. (Greece), Representation of the Polish Academy of Sciences in Kyiv, University of Angers (France), Ruprecht Karl University of Heidelberg (Germany). Internationally recognized experts from a wide range of universities and research institutions share their knowledge and key findings on material properties, behavior, and synthesis. This book’s companion volume also addresses topics such as nano-optics, energy storage, and biomedical applications.

Author : Sandip Dhara
Publisher : CRC Press
Page : 281 pages
File Size : 11,75 MB
Release : 2023-03-31
Category : Science
ISBN : 100084577X

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This book builds a narrative on the near-field optical and spectroscopic studies with an emphasis on plasmonic- and photonic-assisted nano-optics as a tool for superlensing. Deliberations on near-field studies using confined light in various applications are included along with their commercial implications. Single-molecule detection utilizing efficient surface-enhanced Raman scattering phenomenon in the far-field and plasmonic tip-enhanced Raman scattering studies in the near-field measurements for fast analysis up to trace level is discussed. Features: Covers the broad area of nano-optical spectroscopy from the perspective of putting the concepts and innovations in the field to use Discusses entire spectra of near-field optics and spectroscopy using light Explores gas/chemical sensing using surface plasmon resonance (SPR) in the Kretschmann configuration Includes dielectric nano-photonics and optical confinement Studies phonon behaviour using confined light for the analysis of chemical, biological, and other materials This book is aimed at graduate students and researchers in material science, analytical chemistry, nanotechnology, and electrical engineering.

Author : Paulo André Dias Gonçalves
Publisher : Springer Nature
Page : 232 pages
File Size : 17,56 MB
Release : 2020-03-19
Category : Science
ISBN : 3030382915

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This thesis presents a comprehensive theoretical description of classical and quantum aspects of plasmonics in three and two dimensions, and also in transdimensional systems containing elements with different dimensionalities. It focuses on the theoretical understanding of the salient features of plasmons in nanosystems as well as on the multifaceted aspects of plasmon-enhanced light–matter interactions at the nanometer scale. Special emphasis is given to the modeling of nonclassical behavior across the transition regime bridging the classical and the quantum domains. The research presented in this dissertation provides useful tools for understanding surface plasmons in various two- and three-dimensional nanostructures, as well as quantum mechanical effects in their response and their joint impact on light–matter interactions at the extreme nanoscale. These contributions constitute novel and solid advancements in the research field of plasmonics and nanophotonics that will help guide future experimental investigations in the blossoming field of nanophotonics, and also facilitate the design of the next generation of truly nanoscale nanophotonic devices.