Nanostructured Semiconductors

Structural Chemical Modification of Semiconductor Nano-Crystals 1 1.1 Introduction 1 1.2 Vapor Phase Material Growth ... on Nanostructured Semiconductors 2.1 Introduction to Novel Nanoscale Devices from Nanostructured Semiconductors 2.2 ...

Author: Serge Zhuiykov

Publisher: Woodhead Publishing

ISBN: 9780081019207

Category: Technology & Engineering

Page: 558

View: 296

Download →

Nanostructured Semiconductors focuses on the development of semiconductor nanocrystals, their technologies and applications, including energy harvesting, solar cells, solid oxide fuel cells, and chemical sensors. Semiconductor oxides are used in electronics, optics, catalysts, sensors, and other functional devices. In their 2D form, the reduction in size confers exceptional properties, useful for creating faster electronics and more efficient catalysts. Since the first edition of the book, there has been significant progress in the development of new functional nanomaterials with unique and sometimes unpredictable quantum-confined properties within the class what it called two-dimensional (2D) semiconductors. These nanocrystals represent extremely thin nano-structures with thickness of just few nano-meters. Since that time, not only were 2D semiconductor oxides further developed, more importantly, 2D metal dichalcogenides, such as MoS2, MoSe2, WS2, WSe2 and others also progressed significantly in their development demonstrating their superior properties compared to their bulk and microstructural counterparts. The book has been expanded to include these advancements. The book begins with the structure and properties of semiconductor nanocrystals (chapter 1), addresses electronic device applications (chapter 2), discusses 2-Dimensional oxides and dichalcogenide semiconductors (chapters 3 through 5), and ends with energy, environment, and bio applications (chapters 6 through 8). Focuses on the development of semiconductor nanocrystals and their technologies and applications, including energy harvesting, solar cells, solid oxide fuel cells and chemical sensors Include other 2D materials, such as dichalcogenides to present a comprehensive resource on the latest advancements in nanostructured semiconductors Reviews the fundamental physics of conductivity and electron arrangement before proceeding to practical applications Contains a unique chapter dedicated to the new atomic layer deposition (ALD) technique which has the ability to develop 2D nanostructures with great precision
Posted in:

Nanostructured Semiconductors

Owing to the novel obtained physical properties, nanostructured and low-dimensional materials are of interest in ... Therefore, the fabrication of various nanostructured semiconductors plays a key role and is the focus of this book.

Author: Petra Granitzer

Publisher: CRC Press

ISBN: 9789814411103

Category: Science

Page: 700

View: 393

Download →

This book focuses on nanostructured semiconductors, their fabrication, and their application in various fields such as optics, acoustics, and biomedicine. It presents a compendium of recent developments in nanostructured and hybrid materials and also contains a collection of principles and approaches related to nano-size semiconductors. The text summarizes the recent work by renowned scientists, emphasizing the synthesis by self-assembly or prestructuring and characterization methods of such nanosize materials and also discusses the potential applications of nanostructured semiconductors and hybrid systems. The book also gives adequate coverage to the novel properties of nanostructured and low-dimensional materials.
Posted in:

Nanostructured Semiconductors

Chapter 12 Crystalline / Amorphous Porous Ge Nanostructures by Electrochemical Etching Sergii Tutashkonkoa and Tetyana ... The method consists of the electrochemical etching of a semiconductor material , such as Si , Ge , Sic , and GaAs ...

Author: Konstantinos Termentzidis

Publisher: CRC Press

ISBN: 9789814745659

Category: Science

Page: 574

View: 555

Download →

The book is devoted to nanostructures and nanostructured materials containing both amorphous and crystalline phases with a particular focus on their thermal properties. It is the first time that theoreticians and experimentalists from different domains gathered to treat this subject. It contains two distinct parts; the first combines theory and simulations methods with specific examples, while the second part discusses methods to fabricate nanomaterials with crystalline and amorphous phases and experimental techniques to measure the thermal conductivity of such materials. Physical insights are given in the first part of the book, related with the existing theoretical models and the state of art simulations methods (molecular dynamics, ab-initio simulations, kinetic theory of gases). In the second part, engineering advances in the nanofabrication of crystalline/amorphous heterostructures (heavy ion irradiation, electrochemical etching, aging/recrystallization, ball milling, PVD, laser crystallization and magnetron sputtering) and adequate experimental measurement methods are analyzed (Scanning Thermal Microscopy, Raman, thermal wave methods and x-rays neutrons spectroscopy).
Posted in:

Chemical Physics of Nanostructured Semiconductors

The development of heterogeneous photocatalysis, based on nanosized, nanostructured, or nanoparticulated semiconductor materials has now been placed in forefront [8]. Very recently we have synthesized novel materials based on transition ...

Author: Alexander I. Kokorin

Publisher: CRC Press

ISBN: 9781498708630

Category: Science

Page: 264

View: 855

Download →

Deep and detailed discussions on chemistry, chemical physics, photoelectrochemistry, photophysics, photocatalysis and possible applications of nanostructured semiconductor materials have shown increasing interest in the matter by scientists representing various research areas as well as industrial enterprises. Indeed, solar energy conversion and ch
Posted in:

Nanostructured Semiconductors in Porous Alumina Matrices

On the other hand, the synthesis of anisotropic metal nanostructures is interesting from the point of creating materials ... Nanocomposites based on semiconductors in dielectric matrix, matrixes of wide-band-gap, and narrow-band-gap ...

Author: Rishat G. Valeev

Publisher: CRC Press

ISBN: 9780429675232

Category: Science

Page: 252

View: 454

Download →

This book, Nanostructured Semiconductors in Porous Alumina Matrices: Modeling, Synthesis, and Properties, explores new developments in the modeling, synthesis, and properties of functional semiconductor nanostructures in porous anodic alumina matrices. The book focuses on luminescent nanoparticles in organic and inorganic dielectric matrixes, specifically in porous alumina films, as these are most relevant due to their capacity for particle division and ability to provide environmental protection. With a particular emphasis on experimental and theoretical studies of the synthesis processes, the book informs readers about these nanostructures through rigorous investigation of their properties. The book, which is divided into ten chapters, begins with a discussion of the existing literature on nanostructural electroluminescent light sources (ELS). This overview establishes a foundation for the remaining nine chapters, which explore in depth many facets of nanostructured materials: their composition, processes they undergo, how they may be implemented, etc. Within these chapters, experimental studies and results are incorporated, in addition to detailed descriptions of simulations that highlight different uses of these materials.
Posted in:

Nanostructured Semiconductor Oxides for the Next Generation of Electronics and Functional Devices

State-of-the-art. techniques. for. characterization. of. nanostructured. semiconductors. Today the vast majority of semiconductors employed in modern electronic devices are nanostructured and the average grain size is within 5–50 nm.

Author: Serge Zhuiykov

Publisher: Woodhead Publishing

ISBN: 9781782422242

Category: Technology & Engineering

Page: 466

View: 867

Download →

Nanostructured Semiconductor Oxides for the Next Generation of Electronics and Functional Devices focuses on the development of semiconductor nanocrystals, their technologies and applications, including energy harvesting, solar cells, solid oxide fuel cells, and chemical sensors. Semiconductor oxides are used in electronics, optics, catalysts, sensors, and other functional devices. In their 2D form, the reduction in size confers exceptional properties, useful for creating faster electronics and more efficient catalysts. After explaining the physics affecting the conductivity and electron arrangement of nanostructured semiconductors, the book addresses the structural and chemical modification of semiconductor nanocrystals during material growth. It then covers their use in nanoscale functional devices, particularly in electronic devices and carbon nanotubes. It explores the impact of 2D nanocrystals, such as graphene, chalcogenides, and oxide nanostructures, on research and technology, leading to a discussion of incorporating graphene and semiconductor nanostructures into composites for use in energy storage. The final three chapters focus on the applications of these functional materials in photovoltaic cells, solid oxide fuel cells, and in environmental sensors including pH, dissolved oxygen, dissolved organic carbon, and dissolved metal ion sensors. Nanostructured Semiconductor Oxides for the Next Generation of Electronics and Functional Devices is a crucial resource for scientists, applied researchers, and production engineers working in the fabrication, design, testing, characterization, and analysis of new semiconductor materials. This book is a valuable reference for those working in the analysis and characterization of new nanomaterials, and for those who develop technologies for practical devices fabrication. Focuses on the development of semiconductor nanocrystals, their technologies and applications, including energy harvesting, solar cells, solid oxide fuel cells, and chemical sensors Reviews fundamental physics of conductivity and electron arrangement before proceeding to practical applications A vital resource for applied researchers and production engineers working with new semiconductor materials
Posted in:

Photon Absorption Models in Nanostructured Semiconductor Solar Cells and Devices

... EvðkÞ can be more complex and may admit a development in series of (kx, ky, kz) that, in any case, has to be symmetric with respect to the origin [2]. In nanostructured semiconductors, Ev,0 vary spatially with the nanostructure, ...

Author: Antonio Luque

Publisher: Springer

ISBN: 9783319145389

Category: Technology & Engineering

Page: 202

View: 912

Download →

This book is intended to be used by materials and device physicists and also solar cells researchers. It models the performance characteristics of nanostructured solar cells and resolves the dynamics of transitions between several levels of these devices. An outstanding insight into the physical behaviour of these devices is provided, which complements experimental work. This therefore allows a better understanding of the results, enabling the development of new experiments and optimization of new devices. It is intended to be accessible to researchers, but also to provide engineering tools which are often only accessible to quantum physicists. Photon Absorption Models in Nanostructured Semiconductor Solar Cells and Devices is intended to provide an easy-to-handle means to calculate the light absorption in nanostructures, the final goal being the ability to model operational behaviour of nanostructured solar cells. It allows researchers to design new experiments and improve solar cell performances, and offers a means for the easy approximate calculation of the energy spectrum and photon absorption coefficients of nanostructures. This calculation is based on the effective mass model and uses a new Hamiltonian called the Empirical kp Hamiltonian, which is based on a four band kp model.
Posted in:

Nanostructured Zinc Oxide

Quantum confinement of both the electrons and holes in nanostructured semiconductors leads to an increase in the effective bandgap of the material as compared to the bulk with decreasing crystallite size. In the confined direction the ...

Author: Kamlendra Awasthi

Publisher: Elsevier

ISBN: 9780128189016

Category: Technology & Engineering

Page: 780

View: 350

Download →

Nanostructured Zinc Oxide covers the various routes for the synthesis of different types of nanostructured zinc oxide including; 1D (nanorods, nanowires etc.), 2D and 3D (nanosheets, nanoparticles, nanospheres etc.). This comprehensive overview provides readers with a clear understanding of the various parameters controlling morphologies. The book also reviews key properties of ZnO including optical, electronic, thermal, piezoelectric and surface properties and techniques in order to tailor key properties. There is a large emphasis in the book on ZnO nanostructures and their role in optoelectronics. ZnO is very interesting and widely investigated material for a number of applications. This book presents up-to-date information about the ZnO nanostructures-based applications such as gas sensing, pH sensing, photocatalysis, antibacterial activity, drug delivery, and electrodes for optoelectronics. Reviews methods to synthesize, tailor, and characterize 1D, 2D, and 3D zinc oxide nanostructured materials Discusses key properties of zinc oxide nanostructured materials including optical, electronic, thermal, piezoelectric, and surface properties Addresses most relevant zinc oxide applications in optoelectronics such as light-emitting diodes, solar cells, and sensors
Posted in:

Nanostructured Materials and Nanotechnology

The electron storage effects in such semiconductor nanostructures have potential applications not only in electrochromic devices, but also in building electronic devices such as microcapacitors. 6.3. As a Photosensitive Electrode A ...

Author: Hari Singh Nalwa

Publisher: Gulf Professional Publishing

ISBN: 9780125139205

Category: Technology & Engineering

Page: 834

View: 670

Download →

Nanotechnology Provides comprehensive coverage of the dominant technology of the 21st century Written by a truly international list of contributors.
Posted in:

Physics Chemistry and Application of Nanostructures

PHYSICS, CHEMISTRY AND APPLICATION OF NANOSTRUCTURES, 2003 PHOTONIC AND NONLINEAR-OPTICAL MEDIA BASED ON NANOSTRUCTURED SEMICONDUCTORS P. K. KASHKAROV M. V. Lomonosov Moscow State University, Physics Department, 119899 Moscow, ...

Author: Sergey V. Gaponenko

Publisher: World Scientific

ISBN: 9789812383815

Category: Technology & Engineering

Page: 574

View: 475

Download →

PhD students, academics, researchers and industrialists in nanotechnology.
Posted in: