Core Shell Quantum Dots

Author : Xin Tong,Zhiming M. Wang
Publisher : Springer Nature
Page : 331 pages
File Size : 47,5 Mb
Release : 2020-07-01
Category : Science
ISBN : 9783030465964

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Core/Shell Quantum Dots by Xin Tong,Zhiming M. Wang Pdf

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.

Author : Inamuddin,Tauseef Ahmad Rangreez,Mohammad Faraz Ahmer,Rajender Boddula
Publisher : Materials Research Forum LLC
Page : 360 pages
File Size : 43,9 Mb
Release : 2021-04-05
Category : Technology & Engineering
ISBN : 9781644901250

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Quantum Dots by Inamuddin,Tauseef Ahmad Rangreez,Mohammad Faraz Ahmer,Rajender Boddula Pdf

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.

Author : Omar Azzaroni,Katsuhiko Ariga
Publisher : Royal Society of Chemistry
Page : 521 pages
File Size : 52,8 Mb
Release : 2022-02-09
Category : Science
ISBN : 9781788019620

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Concepts and Design of Materials Nanoarchitectonics by Omar Azzaroni,Katsuhiko Ariga Pdf

The concept of nanoarchitechtonics was introduced to describe the correct manipulation of nanoscale materials in the creation of nano-devices and applications. Nanoarchitectonics has begun to spread into many fields including nanostructured materials synthesis, supramolecular assembly, nanoscale structural fabrications, materials hybridizations, materials and structures for energy and environmental sciences, device and physical application, and bio- and medical applications. Following on from the 2012 title Manipulation of Nanoscale Materials, Concepts and Design of Materials Nanoarchitectonics covers the introductory features underlying the field, presenting a unifying overview of the theoretical aspects and emerging applications that are changing the capability to understand and design advanced functional materials. Edited by pioneers of the field, this book will appeal to researchers working in nanoscience, materials science, supramolecular chemistry, physical chemistry and organic chemistry, as well as graduate students in these areas.

Author : John Callan,Françisco M. Raymo
Publisher : CRC Press
Page : 232 pages
File Size : 45,9 Mb
Release : 2013-01-24
Category : Science
ISBN : 9789814316002

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Quantum Dot Sensors by John Callan,Françisco M. Raymo Pdf

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. The book begins by detailing the range of methods currently used for the preparation and passivation of core/core–shell quantum dots and follows with a discussion on their electrochemical properties and potential toxicity. The book culminates by focusing on how electron and energy transfer mechanisms can be utilized to generate a range of quantum dot-based probes. This is the first text of its kind dedicated to quantum dot-based sensors and will appeal to those readers who have an interest in working with these versatile nanoparticles.

Author : Elizabeth J. Sodt
Publisher : Unknown
Page : 0 pages
File Size : 55,5 Mb
Release : 2007
Category : Quantum dots
ISBN : OCLC:228505312

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Synthesis and Characterization of Doped Core/shell Quantum Dots by Elizabeth J. Sodt Pdf

The central theme of the research performed is the systematic modification of the optical properties of quantum dots by the formation of a shell of another quantum dot of a different band gap energy. Core/shell quantum dots such as CdS:Mn/CdS. CdS:Mn/ZnS, and ZnS:Mn/CdS with various concentrations of dopant Mn2 in the core and shell concentrations have been synthesized under mild conditions in the aqueous phase using stoichiometric amounts of the surfactant stabilizer dodecyl sulfate. These quantum dots exhibit UV-vis, emission, and electron paramagnetic resonance (EPR) spectral behavior that is dependent on the concentration of the shell and the dopant Mn2 in the core. The emission intensities of the core quantum dots do exhibit a systematic variation with Mn2 concentration. When a shell is added a systematic variation in the emission intensity and lifetime that are inversely proportional to the concentration of the shell is observed. When the large band gap ZnS is added as a shell to the small band gap CdS, the Mn2+ ions migrate from the core to the shell which is manifested in the emission and EPR spectra. Additionally the mixing of the valence and conduction band energy states of the large and small band gap shell and core respectively is also manifested in the emission spectra. In the reverse case, namely when CdS is added as a shell to ZnS the migration is not observed and the mixing of the valence and conduction band energy levels is minimum. The tunable optical properties of these core/shell quantum dots make them excellent platforms for the generation of nanosensors for nerve gas analogs.

Author : Paras N. Prasad
Publisher : John Wiley & Sons
Page : 433 pages
File Size : 43,5 Mb
Release : 2004-09-21
Category : Science
ISBN : 9780471670247

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Nanophotonics by Paras N. Prasad Pdf

The only comprehensive treatment of nanophotonics currently available Photonics is an all-encompassing optical science and technology which has impacted a diverse range of fields, from information technology to health care. Nanophotonics is photonic science and technology that utilizes light-matter interactions on the nanoscale, where researchers are discovering new phenomena and developing technologies that go well beyond what is possible with conventional photonics and electronics. These new technologies could include efficient solar power generation, high-bandwidth and high-speed communications, high-capacity data storage, and flexible- and high-contrast displays. In addition, nanophotonics will continue to impact biomedical technologies by providing new and powerful diagnostic techniques, as well as light-guided and activated therapies. Nanophotonics provides the only available comprehensive treatment of this exciting, multidisciplinary field, offering a wide range of topics covering: * Foundations * Materials * Applications * Theory * Fabrication Nanophotonics introduces students to important and timely concepts and provides scientists and engineers with a cutting-edge reference. The book is intended for anyone who wishes to learn about light-matter interactions on the nanoscale, as well as applications of photonics for nanotechnology and nanobiotechnology. Written by an acknowledged leader in the field, this text provides an essential resource for those interested in the future of materials science and engineering, nanotechnology, and photonics.

Author : Zhiming M. Wang
Publisher : Springer Science & Business Media
Page : 375 pages
File Size : 53,6 Mb
Release : 2012-05-24
Category : Science
ISBN : 9781461435709

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Quantum Dot Devices by Zhiming M. Wang Pdf

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.

Author : Gerasimos Konstantatos,Edward H. Sargent
Publisher : Cambridge University Press
Page : 329 pages
File Size : 49,6 Mb
Release : 2013-11-07
Category : Science
ISBN : 9780521198264

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Colloidal Quantum Dot Optoelectronics and Photovoltaics by Gerasimos Konstantatos,Edward H. Sargent Pdf

Captures the most up-to-date research in the field, written in an accessible style by the world's leading experts.

Author : N. Thejo Kalyani,Sanjay J. Dhoble,Marta Michalska Domanska,B. Vengadaesvaran,H. Nagabhushana,Abdul Kariem Arof
Publisher : Woodhead Publishing
Page : 612 pages
File Size : 50,5 Mb
Release : 2023-01-18
Category : Technology & Engineering
ISBN : 9780323852791

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Quantum Dots by N. Thejo Kalyani,Sanjay J. Dhoble,Marta Michalska Domanska,B. Vengadaesvaran,H. Nagabhushana,Abdul Kariem Arof Pdf

Quantum dots: Emerging materials for versatile applications is an introduction to the fundamentals and important advances of research of this important category of semiconductor nanostructured materials. After a brief review of relevant nanotechnology concepts and the unique properties of nanomaterials, the book describes the fundamentals of quantum dots with definitions of the primary classifications of quantum dots. There is an emphasis on practical considerations of the commercial translation of quantum dots such as their toxicity, stability, and disposal. Moreover, the book focuses on a review of the advances in research in emerging quantum dot materials along with the latest innovations in materials design and fabrication methods. Quantum Dots is suitable for materials scientists and engineers in academia or industry R&D who are looking for an introduction to this research topic or a key reference on the latest advances and applications. Introduces the primary classifications, properties, synthesis, characterization and fabrication strategies of quantum dots Reviews the latest applications of quantum dots for LEDs, displays, energy storage devices, photovoltaic cells, medicine, and more Discusses the practical barriers to commercial translation of quantum dots, including toxicity, stability, and their safe disposal

Author : Rakshit Ameta,Jayesh P. Bhatt,Suresh C. Ameta
Publisher : Elsevier
Page : 393 pages
File Size : 53,7 Mb
Release : 2022-09-20
Category : Science
ISBN : 9780323858953

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Quantum Dots by Rakshit Ameta,Jayesh P. Bhatt,Suresh C. Ameta Pdf

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

Author : Won Kook Choi
Publisher : Unknown
Page : 75 pages
File Size : 46,9 Mb
Release : 2017
Category : Nanotechnology
ISBN : 9811009813

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ZnO-Nanocarbon Core-Shell Type Hybrid Quantum Dots by Won Kook Choi Pdf

Author : Andrey Rogach
Publisher : Springer Science & Business Media
Page : 374 pages
File Size : 46,5 Mb
Release : 2008-09-02
Category : Technology & Engineering
ISBN : 9783211752371

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Semiconductor Nanocrystal Quantum Dots by Andrey Rogach Pdf

This is the first book to specifically focus on semiconductor nanocrystals, and address their synthesis and assembly, optical properties and spectroscopy, and potential areas of nanocrystal-based devices. The enormous potential of nanoscience to impact on industrial output is now clear. Over the next two decades, much of the science will transfer into new products and processes. One emerging area where this challenge will be very successfully met is the field of semiconductor nanocrystals. Also known as colloidal quantum dots, their unique properties have attracted much attention in the last twenty years.

Author : Oluwatobi Samuel Oluwafemi,El Hadji Mamour Sakho,Sundararajan Parani,Thabang Calvin Lebepe
Publisher : Woodhead Publishing
Page : 282 pages
File Size : 45,9 Mb
Release : 2021-07-02
Category : Technology & Engineering
ISBN : 9780128183045

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Ternary Quantum Dots by Oluwatobi Samuel Oluwafemi,El Hadji Mamour Sakho,Sundararajan Parani,Thabang Calvin Lebepe Pdf

Ternary Quantum Dots: Synthesis, Properties, and Applications reviews the latest advances in ternary (I-III-VI) chalcopyrite quantum dots (QDs), along with their synthesis, properties and applications. Sections address the fundamental key concepts of ternary quantum dots, progress in synthesis strategies (i.e., organic and aqueous synthesis), and characterization methods (i.e., transmission electron microscopy, dynamic light scattering, etc.). Properties of ternary quantum dots are comprehensively reviewed, including optical, chemical and physical properties. The factors and mechanisms of the cytotoxicity of ternary quantum dot-based nanomaterials are also described. Since ternary chalcopyrite quantum dots are less toxic and more environmentally benign than conventional binary II-VI chalcogenide quantum dots, they are being investigated to replace conventional quantum dots in a range of applications. Thus, this book reviews QDs in various applications, such as solar cells, photocatalytic, sensors and bio-applications. Reviews fundamental concepts of ternary quantum dots and quantum dot-nanocomposites including the most relevant synthesis strategies, key properties, and characterization techniques Delves into the cytotoxicity of quantum dots looking at the factors and mechanisms that influence cytotoxicity including demonstration of cytotoxicity assays for in vitro and in vivo tests Touches on the many applications of ternary quantum dots including biomedical applications, applications in solar cells, sensing applications, and photocatalytic applications

Author : Ameenah Al-Ahmadi
Publisher : BoD – Books on Demand
Page : 294 pages
File Size : 42,9 Mb
Release : 2012-04-04
Category : Science
ISBN : 9789535104834

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Quantum Dots by Ameenah Al-Ahmadi Pdf

The book “Quantum dots: A variety of a new applications” provides some collections of practical applications of quantum dots. This book is divided into four sections. In section 1 a review of the thermo-optical characterization of CdSe/ZnS core-shell nanocrystal solutions was performed. The Thermal Lens (TL) technique was used, and the thermal self-phase Modulation (TSPM) technique was adopted as the simplest alternative method. Section 2 includes five chapters where novel optical and lasing application are discussed. In section 3 four examples of quantum dot system for different applications in electronics are given. Section 4 provides three examples of using quantum dot system for biological applications. This is a collaborative book sharing and providing fundamental research such as the one conducted in Physics, Chemistry, Biology, Material Science, Medicine with a base text that could serve as a reference in research by presenting up-to-date research work on the field of quantum dot systems.

Author : S. V. Gaponenko
Publisher : Cambridge University Press
Page : 263 pages
File Size : 41,8 Mb
Release : 1998-10-28
Category : Science
ISBN : 9780521582414

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Optical Properties of Semiconductor Nanocrystals by S. V. Gaponenko Pdf

Examines the optical properties of low-dimensional semiconductor structures, a hot research area - for graduate students and researchers.