Syntheses and Application of Min-doped II-VI Semiconductor Nanocrystals PDF Download
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Author: Heesun Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 258
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Book Description
Author: Heesun Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 258
Get Book Here
Book Description
Author: Heesun Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 258
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Book Description
Author: Xin Tong
Publisher: Springer Nature
ISBN: 3030465969
Category : Science
Languages : en
Pages : 331
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Book Description
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: Alexander L. Efros
Publisher: Springer Science & Business Media
ISBN: 1475736770
Category : Technology & Engineering
Languages : en
Pages : 277
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Book Description
A physics book that covers the optical properties of quantum-confined semiconductor nanostructures from both the theoretical and experimental points of view together with technological applications. Topics to be reviewed include quantum confinement effects in semiconductors, optical adsorption and emission properties of group IV, III-V, II-VI semiconductors, deep-etched and self assembled quantum dots, nanoclusters, and laser applications in optoelectronics.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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HKUST Call Number: Thesis PHYS 2007 Zhao.
Author: Ghenadii Korotcenkov
Publisher: Springer Nature
ISBN: 3031195310
Category : Technology & Engineering
Languages : en
Pages : 585
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Book Description
Three-volumes book “Handbook of II-VI Semiconductor-Based Sensors and Radiation Detectors” is the first to cover both chemical sensors and biosensors and all types of photodetectors and radiation detectors based on II-VI semiconductors. It contains a comprehensive and detailed analysis of all aspects of the application of II-VI semiconductors in these devices. The first volume "Materials and Technologies" of a three-volume set describes the physical, chemical and electronic properties of II-VI compounds, which give rise to an increased interest in these semiconductors. Technologies that are used in the development of various devices based on II-VI connections, such as material synthesis, deposition, characterization, processing, and device fabrication, are also discussed in detail in this volume. It covers also topics related to synthesis and application of II-VI-based nanoparticles and quantum dots, as well their toxicity, biocompatibility and biofunctionalization.
Author: Andrey Rogach
Publisher: Springer Science & Business Media
ISBN: 3211752374
Category : Technology & Engineering
Languages : en
Pages : 374
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Book Description
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: Fumitoshi Kato
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Diluted magnetic semiconductor quantum dots (DMS-QDs) is a class of material prepared by introducing a small percentage of magnetic impurities to impart new magneto-optical properties to the host nanocrystal (NC). Such materials are regarded as promising candidates for their potential application in spintronic devices. The overall functionality of the DMS-QD is highly dependent on the dopant position within the host structure. A thorough understanding of the doping mechanism is, therefore, critical to gain better control over the dopant speciation in nanocrystal lattice and material properties. In this work, we utilized II-VI molecular clusters that are analogous to bulk semiconductors as model systems to obtain mechanistic insight into the doping process. More specifically, we developed new protocols for dopant speciation and to achieve precision doping in these clusters. These molecular clusters are often studied to gain a detailed understanding of the size-property relationship in quantum-confined semiconductor nanocrystals. However, studies of the doping of these structurally well-defined materials and the effect on the host properties are rare. The work presented here focuses on elucidating the solution dynamic of clusters in order to develop controlled doping strategies. The work is primarily centered on Mn2+ and Co2+ as the dopants and CdS molecular cluster as the host. Monitoring the relative peak intensity of both doped and undoped fragments of Mn2+ or Co2+ substituted CdS cluster by electrospray ionization mass spectrometry (ESI-MS) is demonstrated to be an effective method determining for dopant speciation. The cluster-cluster equilibria unraveled from our investigations led us to establish a process that allows for precision doping of clusters. Synthetic methods were formulated based on our understanding of equilibria to yield a larger sized cluster. Furthermore, the presence of impurity ions was found to have a significant impact on the equilibria as well, demonstrating that dopants participate in both cation exchange reactions and the cluster evolution. In addition, the solution dynamic of the isolated clusters was observed and shown to have higher sensitivity towards its surrounding environment. New equilibria were rapidly established once small traces of metal ions were introduced to a solution of pure clusters. The solvent and core chalcogenide ions were found to have a profound effect on the equilibrium as well as the disintegration and growth processes. The studies of solution dynamics presented in this work provide insights relevant to the development of synthetic routes for precise impurity ion doping at the molecular level and to the cluster growth mechanism.
Author: Sudheer Neralla
Publisher: BoD – Books on Demand
ISBN: 9535107143
Category : Science
Languages : en
Pages : 214
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Book Description
Nanocrystals research has been an area of significant interest lately, due to the wide variety of potential applications in semiconductor, optical and biomedical fields. This book consists of a collection of research work on nanocrystals processing and characterization of their structural, optical, electronic, magnetic and mechanical properties. Various methods for nanocrystals synthesis are discussed in the book. Size-dependent properties such as quantum confinement, superparamagnetism have been observed in semiconductor and magnetic nanoparticles. Nanocrystals incorporated into different material systems have proven to possess improved properties. A review of the exciting outcomes nanoparticles study has provided indicates further accomplishments in the near future.
Author:
Publisher:
ISBN:
Category : Environmental policy
Languages : en
Pages :
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