[PDF] Study Of Compound Semiconductor Nanowire Mos Structures eBook

Author : Fumitaro Ishikawa
Publisher : CRC Press
Page : 549 pages
File Size : 17,81 MB
Release : 2017-10-17
Category : Science
ISBN : 9814745774

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One dimensional electronic materials are expected to be key components owing to their potential applications in nanoscale electronics, optics, energy storage, and biology. Besides, compound semiconductors have been greatly developed as epitaxial growth crystal materials. Molecular beam and metalorganic vapor phase epitaxy approaches are representative techniques achieving 0D–2D quantum well, wire, and dot semiconductor III-V heterostructures with precise structural accuracy with atomic resolution. Based on the background of those epitaxial techniques, high-quality, single-crystalline III-V heterostructures have been achieved. III-V Nanowires have been proposed for the next generation of nanoscale optical and electrical devices such as nanowire light emitting diodes, lasers, photovoltaics, and transistors. Key issues for the realization of those devices involve the superior mobility and optical properties of III-V materials (i.e., nitride-, phosphide-, and arsenide-related heterostructure systems). Further, the developed epitaxial growth technique enables electronic carrier control through the formation of quantum structures and precise doping, which can be introduced into the nanowire system. The growth can extend the functions of the material systems through the introduction of elements with large miscibility gap, or, alternatively, by the formation of hybrid heterostructures between semiconductors and another material systems. This book reviews recent progresses of such novel III-V semiconductor nanowires, covering a wide range of aspects from the epitaxial growth to the device applications. Prospects of such advanced 1D structures for nanoscience and nanotechnology are also discussed.

Author : Fumitaro Ishikawa
Publisher : CRC Press
Page : 420 pages
File Size : 35,22 MB
Release : 2017-10-17
Category : Science
ISBN : 1315340720

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One dimensional electronic materials are expected to be key components owing to their potential applications in nanoscale electronics, optics, energy storage, and biology. Besides, compound semiconductors have been greatly developed as epitaxial growth crystal materials. Molecular beam and metalorganic vapor phase epitaxy approaches are representative techniques achieving 0D–2D quantum well, wire, and dot semiconductor III-V heterostructures with precise structural accuracy with atomic resolution. Based on the background of those epitaxial techniques, high-quality, single-crystalline III-V heterostructures have been achieved. III-V Nanowires have been proposed for the next generation of nanoscale optical and electrical devices such as nanowire light emitting diodes, lasers, photovoltaics, and transistors. Key issues for the realization of those devices involve the superior mobility and optical properties of III-V materials (i.e., nitride-, phosphide-, and arsenide-related heterostructure systems). Further, the developed epitaxial growth technique enables electronic carrier control through the formation of quantum structures and precise doping, which can be introduced into the nanowire system. The growth can extend the functions of the material systems through the introduction of elements with large miscibility gap, or, alternatively, by the formation of hybrid heterostructures between semiconductors and another material systems. This book reviews recent progresses of such novel III-V semiconductor nanowires, covering a wide range of aspects from the epitaxial growth to the device applications. Prospects of such advanced 1D structures for nanoscience and nanotechnology are also discussed.

Author : ETCMOS Services, Inc.
Publisher : ETCMOS Services Inc.
Page : 76 pages
File Size : 47,79 MB
Release : 2017-05-30
Category :
ISBN : 1927500869

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Final program from the ETCMOS 2017 conference, May 28-30, 2017, in Warsaw, Poland.

Author : David Taylor Schoen
Publisher :
Page : pages
File Size : 47,23 MB
Release : 2010
Category :
ISBN :

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Semiconductor nanowires are an important class of materials. They have been used in a huge number of applications in the information, energy and medical sciences, and they also offer unique opportunities to study the large number of fundamental physical processes whose basic mechanisms operate on the nanoscale. Great progress has been made in the synthesis of these nanowires and the fabrication necessary to integrate them into top-down architectures; however, fully accounting for structural heterogeneity and understanding processing induced structural changes in these materials remains a challenge. A new approach to investigating structure property relationships combining in-situ transmission electron microscope (TEM) techniques with single nanowire devices and test structures fabricated on electron transparent membranes will be presented, and example studies on several metal chalcogenide materials for use in nonvolatile memory and thin film photovoltaics will be discussed. Several emerging strategies for nonvolatile information storage rely on systems in which an active element can be reversibly actuated between two structural states which can then be electronically distinguished. Gaining fundamental understanding of these systems requires an understanding of these different structural states, how they give rise to the required electronic properties, as well as the dynamics of the reversible process used to actuate the active element. In order to reach the high integration densities required to compete with existing technologies, these active elements must be on the nanoscale. To probe the materials science of two such candidate systems, silver selenide for pulsed electrochemical cell memory and germanium telluride for phase change memory, nanowires were synthesized and single nanowire memory devices were fabricated on electron transparent 50 nm thick silicon nitride substrates for ex-situ and in-situ experiments in the TEM. Currently, the world record power conversion efficiency, 20%, for a thin film photovoltaic device is held by the complicated quaternary material copper indium gallium selenide (CIGS). This excellent performance is not yet clearly understood, but may arise in large part due to the unique nature of the internal boundaries in CIGS materials. In order to understand the complicated relationship between processing and interface structure in this material, extensive TEM studies were undertaken using a variety of single nanowire test structures and in-situ heating. The fundamental understanding obtained by these studies was leveraged both to synthesize high quality p-type copper indium selenide (CIS) nanowires, and also to fabricate for the first time a single nanowire CIS solar cell, an achievement which will serve as a powerful platform for fundamental investigation into this important materials system.

Author : Naoki Fukata
Publisher : Springer
Page : 454 pages
File Size : 29,56 MB
Release : 2021-11-17
Category : Technology & Engineering
ISBN : 9789811590528

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This book covers virtually all aspects of semiconductor nanowires, from growth to related applications, in detail. First, it addresses nanowires’ growth mechanism, one of the most important topics at the forefront of nanowire research. The focus then shifts to surface functionalization: nanowires have a high surface-to-volume ratio and thus are well-suited to surface modification, which effectively functionalizes them. The book also discusses the latest advances in the study of impurity doping, a crucial process in nanowires. In addition, considerable attention is paid to characterization techniques such as nanoscale and in situ methods, which are indispensable for understanding the novel properties of nanowires. Theoretical calculations are also essential to understanding nanowires’ characteristics, particularly those that derive directly from their special nature as one-dimensional nanoscale structures. In closing, the book considers future applications of nanowire structures in devices such as FETs and lasers.

Author : Carina B. Maliakkal
Publisher :
Page : 0 pages
File Size : 25,26 MB
Release : 2018
Category : Technology & Engineering
ISBN :

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Growing nanowires inside a transmission electron microscope (TEM) and observing the process in situ has contributed immensely to understanding nanowire growth mechanisms. Majority of such studies were on elemental semiconductors ,Äì either Si or Ge ,Äì both of which are indirect bandgap semiconductors. Several compound semiconductors on the other hand have a direct bandgap making them more efficient in several applications involving light absorption or emission. During compound nanowire growth using a metal catalyst, the difference in miscibility of the nanowire species inside the metal catalyst are different, making its growth dynamics different from elemental nanowires. Thus, studies specifically focusing on compound nanowires are necessary for understanding its growth dynamics. This chapter reviews the recent progresses in the understanding of compound semiconductor nanowire growth obtained using in situ TEM. The concentrations of the nanowire species in the catalyst was studied in situ. This concentration difference has been shown to enable independent control of layer nucleation and layer growth in nanowires. In situ TEM has also enabled better understanding of the formation of metastable crystal structures in nanowires.

Author : Denis Flandre
Publisher : Springer Science & Business Media
Page : 358 pages
File Size : 48,42 MB
Release : 2006-05-06
Category : Technology & Engineering
ISBN : 1402030134

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This proceedings volume archives the contributions of the speakers who attended the NATO Advanced Research Workshop on “Science and Technology of Semiconductor-On-Insulator Structures and Devices Operating in a Harsh Environment” held at the Sanatorium Puscha Ozerna, th th Kyiv, Ukraine, from 25 to 29 April 2004. The semiconductor industry has maintained a very rapid growth during the last three decades through impressive technological achievements which have resulted in products with higher performance and lower cost per function. After many years of development semiconductor-on-insulator materials have entered volume production and will increasingly be used by the manufacturing industry. The wider use of semiconductor (especially silicon) on insulator materials will not only enable the benefits of these materials to be further demonstrated but, also, will drive down the cost of substrates which, in turn, will stimulate the development of other novel devices and applications. In itself this trend will encourage the promotion of the skills and ideas generated by researchers in the Former Soviet Union and Eastern Europe and their incorporation in future collaborations.

Author : Samares Kar
Publisher : The Electrochemical Society
Page : 565 pages
File Size : 46,83 MB
Release : 2006
Category : Dielectrics
ISBN : 1566775035

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This issue covers, in detail, all aspects of the physics and the technology of high dielectric constant gate stacks, including high mobility substrates, high dielectric constant materials, processing, metals for gate electrodes, interfaces, physical, chemical, and electrical characterization, gate stack reliability, and DRAM and non-volatile memories.