Quantum Dot Devices


Quantum Dot Devices
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Quantum Dot Devices


Quantum Dot Devices
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Author : Zhiming M. Wang
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-05-24

Quantum Dot Devices written by Zhiming M. Wang and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-05-24 with Science categories.


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.



Quantum Dot Optoelectronic Devices


Quantum Dot Optoelectronic Devices
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Author : Peng Yu
language : en
Publisher: Springer Nature
Release Date : 2020-04-16

Quantum Dot Optoelectronic Devices written by Peng Yu and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-16 with Technology & Engineering categories.


This book captures cutting-edge research in semiconductor quantum dot devices, discussing preparation methods and properties, and providing a comprehensive overview of their optoelectronic applications. Quantum dots (QDs), with particle sizes in the nanometer range, have unique electronic and optical properties. They have the potential to open an avenue for next-generation optoelectronic methods and devices, such as lasers, biomarker assays, field effect transistors, LEDs, photodetectors, and solar concentrators. By bringing together leaders in the various application areas, this book is both a comprehensive introduction to different kinds of QDs with unique physical properties as well as their preparation routes, and a platform for knowledge sharing and dissemination of the latest advances in a novel area of nanotechnology.



Photonics Of Quantum Dot Nanomaterials And Devices


Photonics Of Quantum Dot Nanomaterials And Devices
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Author : Ortwin Hess
language : en
Publisher: World Scientific
Release Date : 2012

Photonics Of Quantum Dot Nanomaterials And Devices written by Ortwin Hess and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Science categories.


1. Introduction to photonic quantum dot nanomaterials and devices. 1.1. Physical properties of quantum dots. 1.2. Active semiconductor gain media. 1.3. Quantum dot lasers. 1.4. Laser cavities -- 2. Theory of quantum dot light-matter dynamics. 2.1. Rate equations. 2.2. Maxwell-Bloch equations. 2.3. Quantum luminescence equations. 2.4. Quantum theoretical description -- 3. Light meets matter I: microscopic carrier effect. 3.1. Dynamics in the active charge carrier plasma. 3.2. Dynamic level hole burning. 3.3. Ultrashort nonlinear gain and index dynamics. 3.4. Conclusion -- 4. Light meets matter II: mesoscopic space-time dynamics. 4.1. Introduction: transverse and longitudinal mode dynamics. 4.2. Influence of the transverse degree of freedom and nano-structuring on nearfield dynamics and spectra. 4.3. Longitudinal modes. 4.4. Coupled space-time dynamics. 4.5. Conclusion -- 5. Performance and characterisation: properties on large time and length scales. 5.1. Introduction. 5.2. Spatial and spectral beam quality. 5.3. Dynamic amplitude phase coupling. 5.4. Conclusion -- 6. Nonlinear pulse propagation in semiconductor quantum dot lasers. 6.1. Dynamic shaping of short optical pulses. 6.2. Nonlinear femtosecond dynamics. 6.3. Conclusion -- 7. High-speed dynamics. 7.1. Mode-locking in multi-section quantum dot lasers. 7.2. Dependence of pulse duration on injection current, bias voltage and device geometry. 7.3. Radio frequency spectra of the emitted light. 7.4. Short-pulse optimisation. 7.5. Conclusion -- 8. Quantum dot random lasers. 8.1. Spatially inhomogeneous semiconductor quantum dot ensembles. 8.2. Coherence properties. 8.3. Random lasing in semiconductor quantum dot ensembles. 8.4. Conclusion -- 9. Coherence properties of quantum dot micro-cavity lasers. 9.1. Introduction. 9.2. Radial signal propagation and coherence trapping. 9.3. Influence of disorder. 9.4. Conclusions



Electron Transport In Quantum Dot Devices


Electron Transport In Quantum Dot Devices
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Author : Kittipong Tantisantisom
language : en
Publisher:
Release Date : 2011

Electron Transport In Quantum Dot Devices written by Kittipong Tantisantisom and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.




Colloidal Quantum Dot Light Emitting Diodes


Colloidal Quantum Dot Light Emitting Diodes
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Author : Hong Meng
language : en
Publisher: John Wiley & Sons
Release Date : 2024-02-20

Colloidal Quantum Dot Light Emitting Diodes written by Hong Meng and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-20 with Technology & Engineering categories.


Explore all the core components for the commercialization of quantum dot light emitting diodes Quantum dot light emitting diodes (QDLEDs) are a technology with the potential to revolutionize solid-state lighting and displays. Due to the many applications of semiconductor nanocrystals, of which QDLEDs are an example, they also hold the potential to be adapted into other emerging semiconducting technologies. As a result, it is critical that the next generation of engineers and materials scientists understand these diodes and their latest developments. Colloidal Quantum Dot Light Emitting Diodes: Materials and Devices offers a comprehensive introduction to this subject and its most recent research advancements. Beginning with a summary of the theoretical foundations and the basic methods for chemically synthesizing colloidal semiconductor quantum dots, it identifies existing and future applications for these groundbreaking technologies. The result is tailored to produce a thorough understanding of this area of research. Colloidal Quantum Dot Light Emitting Diodes readers will also find: An author with decades of experience in the field of organic electronics Detailed discussion of topics including advanced display technologies, the patent portfolio and commercial considerations, and more Strategies and design techniques for improving device performance Colloidal Quantum Dot Light Emitting Diodes is ideal for material scientists, electronics engineers, inorganic and solid-state chemists, solid-state and semiconductor physicists, photochemists, and surface chemists, as well as the libraries that support these professionals.



Quantum Dot Heterostructures


Quantum Dot Heterostructures
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Author : Dieter Bimberg
language : en
Publisher: John Wiley & Sons
Release Date : 1999-03-17

Quantum Dot Heterostructures written by Dieter Bimberg and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-03-17 with Science categories.


Da die Nachfrage nach immer schnelleren und kleineren Halbleiterbauelementen stetig wächst, sind Quanten-Dots und -Pyramiden rasant in den Mittelpunkt der Halbleiterforschung gerückt. Dieses Buch vermittelt einen umfassenden Überblick über den aktuellen Forschungsstand auf diesem Gebiet. Behandelt werden u.a. Fragen, wie Strukturen aufgebaut, wie sie charakterisiert werden und wie sie die Leistungsfähigkeit der Bauelemente bestimmen. (11/98)



Quantum Semiconductor Devices And Technologies


Quantum Semiconductor Devices And Technologies
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Author : Tom Pearsall
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-27

Quantum Semiconductor Devices And Technologies written by Tom Pearsall and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-27 with Technology & Engineering categories.


stacked QD structure and is useful for examining the possibility of all optical measurement of stacked QD layers. Optical absorption spectra of self-assembled QDs has been little reported, and further investigation in necessary to study hole-burning memory. 2.5 Summary This chapter describes recent advances in quantum dot fabrication tech nologies, focusing on our self-formed quantum dot technologies including TSR quantum dots and SK-mode self-assembled quantum dots. As is described in this chapter, there are many possible device applications such as quantum dot tunneling memory devices, quantum dot fioating-dot gate FETs, quantum dot lasers, and quantum dot hole-burning memory devices. The quantum dot laser applications seem to be the most practicable among these applications. However, many problems remain to be solved before even this application becomes practical. The most important issue is to of self-assembled quantum dots more pre control the size and position cisely, with an accuracy on an atomic scale. The confinement must be enough to keep the separation energy between quantized energy levels high enough to get high-temperature characteristics. The lasing oscillation frequency should be fixed at 1.3 f.lITl or 1.5 f.lITl for optical communication. Phonon bottleneck problems should be solved by the optimization of device structures. Fortunately, there is much activity in the area of quantum dot lasers and, therefore, many breakthroughs will be made, along with the exploration of other new application areas.



Impact Of Ion Implantation On Quantum Dot Heterostructures And Devices


Impact Of Ion Implantation On Quantum Dot Heterostructures And Devices
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Author : Arjun Mandal
language : en
Publisher: Springer
Release Date : 2017-06-02

Impact Of Ion Implantation On Quantum Dot Heterostructures And Devices written by Arjun Mandal and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-02 with Technology & Engineering categories.


This book looks at the effects of ion implantation as an effective post-growth technique to improve the material properties, and ultimately, the device performance of In(Ga)As/GaAs quantum dot (QD) heterostructures. Over the past two decades, In(Ga)As/GaAs-based QD heterostructures have marked their superiority, particularly for application in lasers and photodetectors. Several in-situ and ex-situ techniques that improve material quality and device performance have already been reported. These techniques are necessary to maintain dot density and dot size uniformity in QD heterostructures and also to improve the material quality of heterostructures by removing defects from the system. While rapid thermal annealing, pulsed laser annealing and the hydrogen passivation technique have been popular as post-growth methods, ion implantation had not been explored largely as a post-growth method for improving the material properties of In(Ga)As/GaAs QD heterostructures. This work attempts to remedy this gap in the literature. The work also looks at introduction of a capping layer of quaternary alloy InAlGaAs over these In(Ga)As/GaAs QDs to achieve better QD characteristics. The contents of this volume will prove useful to researchers and professionals involved in the study of QDs and QD-based devices.



Quantum Dot Molecules


Quantum Dot Molecules
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Author : Jiang Wu
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-10-28

Quantum Dot Molecules written by Jiang Wu and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-28 with Technology & Engineering categories.


A quantum dot molecule (QDM) is composed of two or more closely spaced quantum dots or “artificial atoms.” In recent years, QDMs have received much attention as an emerging new artificial quantum system. The interesting and unique coupling and energy transfer processes between the “artificial atoms” could substantially extend the range of possible applications of quantum nanostructures. This book reviews recent advances in the exciting and rapidly growing field of QDMs via contributions from some of the most prominent researchers in this scientific community. The book explores many interesting topics such as the epitaxial growth of QDMs, spectroscopic characterization, and QDM transistors, and bridges between the fundamental physics of novel materials and device applications for future information technology. Both theoretical and experimental approaches are considered. Quantum Dot Molecules can be recommended for electrical engineering and materials science department courses on the science and design of advanced and future electronic and optoelectronic devices.



Core Shell Quantum Dots


Core Shell Quantum Dots
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Author : Xin Tong
language : en
Publisher: Springer Nature
Release Date : 2020-07-01

Core Shell Quantum Dots written by Xin Tong and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-01 with Science categories.


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.