Electronic Structure And Optical Properties Of Self Assembled Inas Quantum Dots
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Author | : Arjun Mandal |
Publisher | : Springer |
Total Pages | : 84 |
Release | : 2017-06-02 |
Genre | : Technology & Engineering |
ISBN | : 9811043345 |
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.
Author | : Marcin L. Sadowski |
Publisher | : Springer Science & Business Media |
Total Pages | : 443 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9401141584 |
Optical methods for investigating semiconductors and the theoretical description of optical processes have always been an important part of semiconductor physics. Only the emphasis placed on different materials changes with time. Here, a large number of papers are devoted to quantum dots, presenting the theory, spectroscopic investigation and methods of producing such structures. Another major part of the book reflects the growing interest in diluted semiconductors and II-IV nanosystems in general. There are also discussions of the fascinating field of photonic crystals. `Classical' low dimensional systems, such as GsAs/GaAlAs quantum wells and heterostructures, still make up a significant part of the results presented, and they also serve as model systems for new phenomena. New materials are being sought, and new experimental techniques are coming on stream, in particular the combination of different spectroscopic modalities.
Author | : Paul Harrison |
Publisher | : John Wiley & Sons |
Total Pages | : 564 |
Release | : 2011-09-26 |
Genre | : Science |
ISBN | : 111996475X |
Quantum Wells, Wires and Dots, 3rd Edition is aimed at providing all the essential information, both theoretical and computational, in order that the reader can, starting from essentially nothing, understand how the electronic, optical and transport properties of semiconductor heterostructures are calculated. Completely revised and updated, this text is designed to lead the reader through a series of simple theoretical and computational implementations, and slowly build from solid foundations, to a level where the reader can begin to initiate theoretical investigations or explanations of their own.
Author | : Zhiming M Wang |
Publisher | : Springer Science & Business Media |
Total Pages | : 470 |
Release | : 2007-11-29 |
Genre | : Technology & Engineering |
ISBN | : 0387741917 |
This multidisciplinary book provides up-to-date coverage of carrier and spin dynamics and energy transfer and structural interaction among nanostructures. Coverage also includes current device applications such as quantum dot lasers and detectors, as well as future applications to quantum information processing. The book will serve as a reference for anyone working with or planning to work with quantum dots.
Author | : Hock Jin Quah |
Publisher | : Trans Tech Publications Ltd |
Total Pages | : 245 |
Release | : 2023-07-27 |
Genre | : Science |
ISBN | : 3036410066 |
Selected peer-reviewed extended articles based on abstracts presented at the 2nd International Conference on Semiconductor Materials and Technology (ICoSeMT 2021) Aggregated Book
Author | : Saumya Sengupta |
Publisher | : Springer |
Total Pages | : 77 |
Release | : 2017-08-04 |
Genre | : Technology & Engineering |
ISBN | : 9811057028 |
This book explores the effects of growth pause or ripening time on the properties of quantum dots(QDs). It covers the effects of post-growth rapid thermal annealing (RTA) treatment on properties of single layer QDs. The effects of post-growth rapid thermal annealing (RTA) treatment on properties of single layer QDs are discussed. The book offers insight into InAs/GaAs bilayer QD heterostructures with very thin spacer layers and discusses minimum spacer thickness required to grow electronically coupled bilayer QD heterostructures. These techniques make bilayer QD heterostructures a better choice over the single layer and uncoupled multilayer QD heterostructure. Finally, the book discusses sub-monolayer (SML) growth technique to grow QDs. This recent technique has been proven to improve the device performance significantly. The contents of this monograph will prove useful to researchers and professionals alike.
Author | : Mohamed Henini |
Publisher | : Elsevier |
Total Pages | : 862 |
Release | : 2011-07-28 |
Genre | : Technology & Engineering |
ISBN | : 0080560474 |
The self-assembled nanostructured materials described in this book offer a number of advantages over conventional material technologies in a wide range of sectors. World leaders in the field of self-organisation of nanostructures review the current status of research and development in the field, and give an account of the formation, properties, and self-organisation of semiconductor nanostructures. Chapters on structural, electronic and optical properties, and devices based on self-organised nanostructures are also included. Future research work on self-assembled nanostructures will connect diverse areas of material science, physics, chemistry, electronics and optoelectronics. This book will provide an excellent starting point for workers entering the field and a useful reference to the nanostructured materials research community. It will be useful to any scientist who is involved in nanotechnology and those wishing to gain a view of what is possible with modern fabrication technology. Mohamed Henini is a Professor of Applied Physics at the University of Nottingham. He has authored and co-authored over 750 papers in international journals and conference proceedings and is the founder of two international conferences. He is the Editor-in-Chief of Microelectronics Journal and has edited three previous Elsevier books. - Contributors are world leaders in the field - Brings together all the factors which are essential in self-organisation of quantum nanostructures - Reviews the current status of research and development in self-organised nanostructured materials - Provides a ready source of information on a wide range of topics - Useful to any scientist who is involved in nanotechnology - Excellent starting point for workers entering the field - Serves as an excellent reference manual
Author | : Editors of the Stefan University Press |
Publisher | : Stefan University Press |
Total Pages | : 110 |
Release | : 1998-09-07 |
Genre | : Science |
ISBN | : |
Bulletin of the STEFAN UNIVERSITY: Semiconductor Science and Technology—1998; ISSN: 1098-1632.: Stefan Frontier Conferences (Frontier Science Research Conferences--FSRC); La Jolla, California, September 7-11, 1998; @1998, The Stefan University Press
Author | : Bruce A. Joyce |
Publisher | : Springer Science & Business Media |
Total Pages | : 401 |
Release | : 2006-03-30 |
Genre | : Technology & Engineering |
ISBN | : 140203315X |
This volume contains papers delivered at a NATO Advanced Research Workshop and provides a broad introduction to all major aspects of quantum dot structures. Such structures have been produced for studies of basic physical phenomena, for device fabrication and, on a more speculative level, have been suggested as components of a solid-state realization of a quantum computer. The book is structured so that the reader is introduced to the methods used to produce and control quantum dots, followed by discussions of their structural, electronic, and optical properties. It concludes with examples of how their optical properties can be used in practical devices, including lasers and light-emitting diodes operating at the commercially important wavelengths of 1.3 Am and 1.55 Am."
Author | : Juraj Marek |
Publisher | : Trans Tech Publications Ltd |
Total Pages | : 131 |
Release | : 2023-05-31 |
Genre | : Science |
ISBN | : 3036413316 |
Special topic volume with invited peer-reviewed papers only