Download or read book Synthesis and Photophysical Properties of CdSe Quantum Dots written by Nick Rightmire and published by . This book was released on 2010 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photoactive Semiconductor Nanocrystal Quantum Dots written by Alberto Credi and published by Springer. This book was released on 2017-01-20 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.
Download or read book Core Shell Quantum Dots written by Xin Tong and published by Springer Nature. This book was released on 2020-07-01 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book outlines various synthetic approaches, tuneable physical properties, and device applications of core/shell quantum dots (QDs). Core/shell QDs have exhibited enhanced quantum yield (QY), suppressed photobleaching/blinking, and significantly improved photochemical/physical stability as compared to conventional bare QDs. The core-shell structure also promotes the easy tuning of QDs’ band structure, leading to their employment as attractive building blocks in various optoelectronic devices. The main objective of this book is to create a platform for knowledge sharing and dissemination of the latest advances in novel areas of core/shell QDs and relevant devices, and to provide a comprehensive introduction and directions for further research in this growing area of nanomaterials research.
Download or read book Synthesis Biological Targeting and Photophysics of Quantum Dots written by Samuel Jon Clarke and published by . This book was released on 2008 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanocrystal Quantum Dots written by Victor I. Klimov and published by CRC Press. This book was released on 2017-12-19 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of recent advancements in colloidal nanocrystals and quantum-confined nanostructures, Nanocrystal Quantum Dots is the second edition of Semiconductor and Metal Nanocrystals: Synthesis and Electronic and Optical Properties, originally published in 2003. This new title reflects the book’s altered focus on semiconductor nanocrystals. Gathering contributions from leading researchers, this book contains new chapters on carrier multiplication (generation of multiexcitons by single photons), doping of semiconductor nanocrystals, and applications of nanocrystals in biology. Other updates include: New insights regarding the underlying mechanisms supporting colloidal nanocrystal growth A revised general overview of multiexciton phenomena, including spectral and dynamical signatures of multiexcitons in transient absorption and photoluminescence Analysis of nanocrystal-specific features of multiexciton recombination A review of the status of new field of carrier multiplication Expanded coverage of theory, covering the regime of high-charge densities New results on quantum dots of lead chalcogenides, with a focus studies of carrier multiplication and the latest results regarding Schottky junction solar cells Presents useful examples to illustrate applications of nanocrystals in biological labeling, imaging, and diagnostics The book also includes a review of recent progress made in biological applications of colloidal nanocrystals, as well as a comparative analysis of the advantages and limitations of techniques for preparing biocompatible quantum dots. The authors summarize the latest developments in the synthesis and understanding of magnetically doped semiconductor nanocrystals, and they present a detailed discussion of issues related to the synthesis, magneto-optics, and photoluminescence of doped colloidal nanocrystals as well. A valuable addition to the pantheon of literature in the field of nanoscience, this book presents pioneering research from experts whose work has led to the numerous advances of the past several years.
Download or read book Basic Solid State Chemistry written by Anthony R. West and published by . This book was released on 1988 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Properties and Surface Modifications of Cdse Quantum Dots written by Himani Sharma and published by LAP Lambert Academic Publishing. This book was released on 2010-11 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emergence of colloidal semiconductor nanocrystals has generated great fundamental and technical interest in recent years. The size dependent emission property for Cadmium Selenide quantum dots renders it indispensable in the field of nanocrystal-based emitters used in electronic and bioelectronic devices. Investigation of these semiconductor quantum dots reveals the evolution of the electronic structure from an extended solid state to the molecular limit, an extremely important issue of basic and applied research in condensed matter physics. The work presented in this book mainly deals with the synthesis and characterization of chemically synthesized CdSe nanoparticles. A detailed investigation of the optical, structural and morphological properties of CdSe QDs and their correlation with both core and surface has been carried out. The theoretical aspect of quantum confinement and stability of CdSe quantum dots with organic and inorganic layers, are correlated to understand the surface modification aspects. Finally CdSe-polymer nanocomposites were discussed for their potential application in biomarkers and photo-electronic devices.
Download or read book Quantum Dots written by Rakshit Ameta and published by Elsevier. This book was released on 2022-09-20 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum Dots: Fundamentals, Synthesis and Applications compiles key information, along with practical guidance on quantum dot synthesis and applications. Beginning with an introduction, Part One highlights such foundational knowledge as growth mechanisms, shape and composition, electrochemical properties, and production scale-up for quantum dots. Part Two goes on to provide practical guides to key chemical, physical and biological methods for the synthesis of quantum dots, with Part Three reviewing the application of quantum dots and a range of important use cases, including photocatalysis, energy cells and medical imaging. Drawing on the knowledge of its expert authors, this comprehensive book provides practical guidance for all those who already study, develop or use quantum dots in their work. - Presents the foundational information needed to effectively understand and manipulate quantum dot properties - Consolidates key methods of quantum dot synthesis in a single volume - Reviews both current and future practical applications of quantum dots across a range of important fields
Download or read book Optical Properties of Semiconductor Nanocrystals written by S. V. Gaponenko and published by Cambridge University Press. This book was released on 1998-10-28 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the optical properties of low-dimensional semiconductor structures, a hot research area - for graduate students and researchers.
Download or read book Cadmium Telluride Quantum Dots written by John Donegan and published by CRC Press. This book was released on 2016-04-19 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last two decades, semiconductor quantum dots-small colloidal nanoparticles-have garnered a great deal of scientific interest because of their unique properties. Among nanomaterials, CdTe holds special technological importance as the only known II-VI material that can form conventional p-n junctions. This makes CdTe very important for the dev
Download or read book Quantum Dot Devices written by Zhiming M. Wang and published by Springer Science & Business Media. This book was released on 2012-05-24 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum dots as nanomaterials have been extensively investigated in the past several decades from growth to characterization to applications. As the basis of future developments in the field, this book collects a series of state-of-the-art chapters on the current status of quantum dot devices and how these devices take advantage of quantum features. Written by 56 leading experts from 14 countries, the chapters cover numerous quantum dot applications, including lasers, LEDs, detectors, amplifiers, switches, transistors, and solar cells. Quantum Dot Devices is appropriate for researchers of all levels of experience with an interest in epitaxial and/or colloidal quantum dots. It provides the beginner with the necessary overview of this exciting field and those more experienced with a comprehensive reference source.
Download or read book Single Molecule Characterization of Photophysical and Colloidal Properties of Biocompatible Quantum Dots written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Colloidal semiconductor nanocrystals (NCs) have recently been introduced as novel fluorescent labels for various biological applications. Their unique optical properties -- tunable narrow emission spectrum, broad excitation spectrum, high photostability and long fluorescent lifetimes (on the order of tens of nanoseconds) -- make them attractive probes in experiments involving long observation times, multicolor and time-gated detection. Photophysical properties were investigated at the ensemble and single-molecule level for CdSe or CdTe core, CdSe/ZnS core-shell and surface-modified NCs. The use of NCs as fluorescent probes in biological applications requires various synthesis routes and surface modifications to enable solubility in aqueous solution and to allow labeling of biological macromolecules. Due to NC2s sensitivity to surface-defects chemical treatments have a significant influence on photophysical properties and need to be thoroughly monitored. Single-molecule fluorescence detection was used to characterize NC fluorescence, observe intermittency in the emission (blinking), and unravel a non-fluorescent subpopulation of NCs whose fluorescence can be restored through photo-induced activation. Stage-scanning confocal, epifluorescence and objective-type total-internal-reflection microscopy, were applied to observe surface-immobilized NCs. Fluorescence lifetimes were determined to be around 20 ns for single particles showing deviations from a mono-exponential decay. This observation was proven to be characteristic of single particles by monitoring photon antibunching. Fluorescence correlation spectroscopy (FCS) was used to characterize photophysical and colloidal properties in solution. It was shown to be a powerful technique to rapidly evaluate information on synthesis and surface modifications. These are essential to achieve water-solubility and bio-conjugation and dramatically influence the optical performance. FCS allows measuring concentration of fluorescent.
Download or read book Quantum Dot Sensors written by John Callan and published by CRC Press. This book was released on 2013-01-24 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consisting of six chapters, written by experts in their field, this book charts the progress made in the use of quantum dots as the signaling component in optical sensors since their discovery in the early 1980s. In particular, it focuses on CdS-, CdSe-, and CdTe-type QDs due to their emission in the visible region of the electromagnetic spectrum.
Download or read book Quantum Dots for DNA Biosensing written by Jun-Jie Zhu and published by Springer Science & Business Media. This book was released on 2013-12-04 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad introduction to all major aspects of quantum dot properties including fluorescence, electrochemical, photochemical and electroluminescence. Such properties have been produced for applications in biosensing, cell tracking, in vivo animal imaging and so on. It focuses on their special applications in DNA biosensing and provides readers with detailed information on the preparation and functionalization of quantum dots and the fabrication of DNA biosensors, using examples to show how these properties can be used in DNA biosensor design and the advantages of quantum dots in DNA biosensing. Further new emerging quantum dots such as metal nanoclusters and graphene dots and their applications in DNA biosensing have also been included.
Download or read book Investigating Photophysics in Colloidal Semiconductor Quantum Dots Through Photon correlation Methods written by Weiwei Sun (Chemist) and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colloidal semiconductor quantum dots (QDs) exhibit interesting photophysical properties due to their quantum-confined nature. Due to their bright and stable photoluminescence, they have been widely used in a variety of applications, including lasing, light emitting diodes (LEDs), solar cells, biological imaging, and most recently quantum information science. Numerous efforts have been made to optimize these QDs to improve their performance, which all require the establishment of an efficient feedback loop between optical properties and synthesis. Spectroscopic studies on their PL properties would inform us about the nature of QD emission and point new directions for future design and optimization of QDs. In this thesis, I will use photon-correlation-based spectroscopy, a powerful toolkit with both high temporal and spectral resolutions, to investigate the exciton photo-physics inside these QDs to build a complete understanding of the exciton dynamics in cesium lead halide and CdSe/CdS quantum dots. In the first two chapters, I will build a foundation on the understanding of semiconductor quantum dots, quantum emitters, and single particle spectroscopic techniques. In the next two chapters, I will use photon-correlation Fourier spectroscopy (PCFS) to investigate single particle optical coherence properties, to demonstrate cesium lead halide perovskite quantum dots (PQDs) as the next-generation quantum emitter materials for quantum information science, and investigate their dephasing mechanisms at cryogenic temperatures. In the next chapter, I will switch gears to CdSe/CdS quantum dots to develop the first-time all-optical deterministic blinking control method and explain the mechanisms behind it. Finally, I will present a few interesting and unexplored ideas in understanding the nature of fine structure states in PQDs and the integration of nanophotonic cavities to achieve true transform-limited single quantum emitters and large-scale generation.
Download or read book Colloidal Quantum Dot Optoelectronics and Photovoltaics written by Gerasimos Konstantatos and published by Cambridge University Press. This book was released on 2013-11-07 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Captures the most up-to-date research in the field, written in an accessible style by the world's leading experts.
Download or read book Quantum Dots written by Inamuddin and published by Materials Research Forum LLC. This book was released on 2021-04-05 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a thorough survey of current research in quantum dots synthesis, properties, and applications. The unique properties of these new nanomaterials offer multifunctional applications in such fields as photovoltaics, light-emitting diodes, field-effect transistors, lasers, photodetectors, solar cells, biomedical diagnostics and quantum computing. Keywords: Quantum Dots (QD), Photovoltaics, Light-emitting Diodes, Field-effect Transistors, Lasers, Photodetectors, Solar Cells, Biomedical Diagnostics, Quantum Computing, QD Synthesis, Carbon QDs, Graphene QDs, QD Sensors, Supercapacitors, Magnetic Quantum Dots, Cellular/Molecular Separation, Chromatographic Separation Column, Photostability, Luminescence of Carbon QDs, QD Materials for Water Treatment, Semiconductor Quantum Dots, QD Drug Delivery, Antibacterial Quantum Dots.
