The Synthesis and Characterizations of II-VI Semiconductor Nanomaterials and Their Applications in Optoelectronic Devices

The Synthesis and Characterizations of II-VI Semiconductor Nanomaterials and Their Applications in Optoelectronic Devices PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Synthesis, Characterization, and Applications of II-VI Compound Semiconductor Nanomaterials and Superparamagnetic Nanoparticles

Synthesis, Characterization, and Applications of II-VI Compound Semiconductor Nanomaterials and Superparamagnetic Nanoparticles PDF Author: 賴志維
Publisher:
ISBN:
Category :
Languages : en
Pages : 191

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Nanoscale Compound Semiconductors and their Optoelectronics Applications

Nanoscale Compound Semiconductors and their Optoelectronics Applications PDF Author: Vijay B. Pawade
Publisher: Woodhead Publishing
ISBN: 0128240636
Category : Technology & Engineering
Languages : en
Pages : 461

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Book Description
Nanoscale Compound Semiconductors and their Optoelectronics Applications provides the basic and fundamental properties of nanoscale compound semiconductors and their role in modern technological products. The book discusses all important properties of this important category of materials such as their optical properties, size-dependent properties, and tunable properties. Key methods are reviewed, including synthesis techniques and characterization strategies. The role of compound semiconductors in the advancement of energy efficient optoelectronics and solar cell devices is also discussed. The book also touches on the photocatalytic property of the materials by doping with graphene oxides--an emerging and new pathway. - Covers all relevant types of nanoscale compound semiconductors for optoelectronics, including their synthesis, properties and applications - Provides historical context and review of emerging trends in semiconductor technology, particularly emphasizing advances in non-toxic semiconductor materials for green technologies - Reviews emerging applications of nanoscale compound semiconductor-based devices in optoelectronics, energy and environmental sustainability

Cadmium based II-VI Semiconducting Nanomaterials

Cadmium based II-VI Semiconducting Nanomaterials PDF Author: Abdul Majid
Publisher: Springer
ISBN: 3319687530
Category : Technology & Engineering
Languages : en
Pages : 194

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Book Description
This book provides technological perspective and comprehensive overview on the research efforts related to II-VI group cadmium based semiconducting nanomaterials. It describes state-of-the-art information on different synthesis methods for preparation of these materials using a variety of experimental strategies. The effects of synthesis roots on structural, thermal, mechanical, lattice vibronic, electronic, optical and carrier transport characteristics of these nano-structures are systematically analyzed. A wide target readership comprising of students, researchers, scholars, scientists, technicians, academicians, industrialists can benefit from this book, as cadmium based semiconductors possess significant research and industrial interest thanks to their innovative properties.

Handbook of II-VI Semiconductor-Based Sensors and Radiation Detectors

Handbook of II-VI Semiconductor-Based Sensors and Radiation Detectors PDF 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.

Semiconductor Nanostructures for Optoelectronic Devices

Semiconductor Nanostructures for Optoelectronic Devices PDF Author: Gyu-Chul Yi
Publisher: Springer Science & Business Media
ISBN: 3642224806
Category : Technology & Engineering
Languages : en
Pages : 347

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Book Description
This book presents the fabrication of optoelectronic nanodevices. The structures considered are nanowires, nanorods, hybrid semiconductor nanostructures, wide bandgap nanostructures for visible light emitters and graphene. The device applications of these structures are broadly explained. The book deals also with the characterization of semiconductor nanostructures. It appeals to researchers and graduate students.

Semiconductor Nanotechnology

Semiconductor Nanotechnology PDF Author: Stephen M. Goodnick
Publisher: Springer
ISBN: 3319918966
Category : Technology & Engineering
Languages : en
Pages : 241

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Book Description
This book presents research dedicated to solving scientific and technological problems in many areas of electronics, photonics and renewable energy. Energy and information are interconnected and are essential elements for the development of human society. Transmission, processing and storage of information requires energy consumption, while the efficient use and access to new energy sources requires new information (ideas and expertise) and the design of novel systems such as photovoltaic devices, fuel cells and batteries. Semiconductor physics creates the knowledge base for the development of information (computers, cell phones, etc.) and energy (photovoltaic) technologies. The exchange of ideas and expertise between these two technologies is critical and expands beyond semiconductors. Continued progress in information and renewable energy technologies requires miniaturization of devices and reduction of costs, energy and material consumption. The latest generation of electronic devices is now approaching nanometer scale dimensions, new materials are being introduced into electronics manufacturing at an unprecedented rate, and alternative technologies to mainstream CMOS are evolving. Nanotechnology is widely accepted as a source of potential solutions in securing future progress for information and energy technologies. Semiconductor Nanotechnology features chapters that cover the following areas: atomic scale materials design, bio- and molecular electronics, high frequency electronics, fabrication of nanodevices, magnetic materials and spintronics, materials and processes for integrated and subwave optoelectronics, nanoCMOS, new materials for FETs and other devices, nanoelectronics system architecture, nano optics and lasers, non-silicon materials and devices, chemical and biosensors, quantum effects in devices, nano science and technology applications in the development of novel solar energy devices, and fuel cells and batteries.

Semiconductor Nanowires

Semiconductor Nanowires PDF Author: J Arbiol
Publisher: Woodhead Publishing
ISBN: 9781782422532
Category : Science
Languages : en
Pages : 0

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Book Description
Semiconductor nanowires promise to provide the building blocks for a new generation of nanoscale electronic and optoelectronic devices. Semiconductor Nanowires: Materials, Synthesis, Characterization and Applications covers advanced materials for nanowires, the growth and synthesis of semiconductor nanowires-including methods such as solution growth, MOVPE, MBE, and self-organization. Characterizing the properties of semiconductor nanowires is covered in chapters describing studies using TEM, SPM, and Raman scattering. Applications of semiconductor nanowires are discussed in chapters focusing on solar cells, battery electrodes, sensors, optoelectronics and biology.

Colloidal Synthesis and Photophysical Characterization of Group IV Alloy and Group IV-V Semiconductors

Colloidal Synthesis and Photophysical Characterization of Group IV Alloy and Group IV-V Semiconductors PDF Author: Venkatesham Tallapally
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages :

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Book Description
Nanomaterials, typically less than 100 nm size in any direction have gained noteworthy interest from scientific community owing to their significantly different and often improved physical properties compared to their bulk counterparts. Semiconductor nanoparticles (NPs) are of great interest to study their tunable optical properties, primarily as a function of size and shape. Accordingly, there has been a lot of attention paid to synthesize discrete semiconducting nanoparticles, of where Group III-V and II-VI materials have been studied extensively. In contrast, Group IV and Group IV-V based nanocrystals as earth abundant and less-non-toxic semiconductors have not been studied thoroughly. From the class of Group IV, Ge1-xSnxalloys are prime candidates for the fabrication of Si-compatible applications in the field of electronic and photonic devices, transistors, and charge storage devices. In addition, Ge1-xSnx alloys are potentials candidates for bio-sensing applications as alternative to toxic materials. Tin phosphides, a class of Group IV-V materials with their promising applications in thermoelectric, photocatalytic, and charge storage devices. However, both aforementioned semiconductors have not been studied thoroughly for their full potential in visible (Vis) to near infrared (NIR) optoelectronic applications. In this dissertation research, we have successfully developed unique synthetic strategies to produce Ge1-xSnxalloy quantum dots (QDs) and tin phosphide (Sn3P4, SnP, and Sn4P3) nanoparticles with tunable physical properties and crystal structures for potential applications in IR technologies. Low-cost, less-non-toxic, and abundantly-produced Ge1-xSnxalloys are an interesting class of narrow energy-gap semiconductors that received noteworthy interest in optical technologies. Admixing of Îł-Sn into Ge results in an indirect-to-direct bandgap crossover significantly improving light absorption and emission relative to indirect-gap Ge. However, the narrow energy-gaps reported for bulk Ge1-xSnxalloys have become a major impediment for their widespread application in optoelectronics. Herein, we report the first colloidal synthesis of Ge1-xSnxalloy quantum dots (QDs) with narrow size dispersity (3.3±0.5 -- 5.9±0.8 nm), wide range of Sn compositions (0--20.6%), and composition-tunable energy-gaps and near infrared (IR) photoluminescence (PL). The structural analysis of alloy QDs indicates linear expansion of cubic Ge lattice with increasing Sn, suggesting the formation of strain-free nanoalloys. The successful incorporation of Îł-Sn into crystalline Ge has been confirmed by electron microscopy, which suggests the homogeneous solid solution behavior of QDs. The quantum confinement effects have resulted in energy gaps that are significantly blue-shifted from bulk Ge for Ge1-xSnxalloy QDs with composition-tunable absorption onsets (1.72±0.84 eV for x=1.5--20.6%) and PL peaks (1.62--1.31 eV for x=1.5--5.6%). Time-resolved PL (TRPL) spectroscopy revealed microsecond and nanosecond timescale decays at 15 K and 295 K, respectively owing to radiative recombination of dark and bright excitons as well as the interplay of surface traps and core electronic states. Realization of low-to-non-toxic and silicon-compatible Ge1-xSnxQDs with composition-tunable near IR PL allows the unprecedented expansion of direct-gap Group IV semiconductors to a wide range of biomedical and advanced technological studies. Tin phosphides are a class of materials that received noteworthy interest in photocatalysis, charge storage and thermoelectric devices. Dual stable oxidation states of tin (Sn2+ and Sn4+) enable tin phosphides to exhibit different stoichiometries and crystal phases. However, the synthesis of such nanostructures with control over morphology and crystal structure has proven a challenging task. Herein, we report the first colloidal synthesis of size, shape, and phase controlled, narrowly disperse rhombohedral Sn4P3, hexagonal SnP, and amorphous tin phosphide nanoparticles (NPs) displaying tunable morphologies and size dependent physical properties. The control over NP morphology and crystal phase was achieved by tuning the nucleation/growth temperature, molar ratio of Sn/P, and incorporation of additional coordinating solvents (alkylphosphines). The absorption spectra of smaller NPs exhibit size-dependent blue shifts in energy gaps (0.88--1.38 eV) compared to the theoretical value of bulk Sn3P4 (0.83 eV), consistent with quantum confinement effects. The amorphous NPs adopt rhombohedral Sn4P3 and hexagonal SnP crystal structures at 180 and 250 ̊C, respectively. Structural and surface analysis indicates consistent bond energies for phosphorus across different crystal phases, whereas the rhombohedral Sn4P3 NPs demonstrate Sn oxidation states distinctive from those of the hexagonal and amorphous NPs owing to complex chemical structure. All phases exhibit N(1s) and ʋ(N-H) energies suggestive of alkylamine surface functionalization and are devoid of tetragonal Sn impurities.

Growth And Characterization Of Semiconductor Nanostructure For Device Applications

Growth And Characterization Of Semiconductor Nanostructure For Device Applications PDF Author: Dr. Jehova Jire L. Hmar
Publisher: BFC Publications
ISBN: 9357640282
Category : Science
Languages : en
Pages : 123

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Book Description
This book is intended to provide knowledge for students and learners in the field of nanoscale science and nanotechnology. Nanotechnology is design, fabrication and application of nanostructures or nanomaterials, and the fundamental understanding of the relationships between physical properties or phenomena and material dimensions. Nanotechnology deals with materials or structures in nanometer scales, typically ranging from subnanometers to several hundred nanometers. Nanotechnology is a new field or a new scientific domain. Similar to quantum mechanics, on nanometer scale, materials or structures may possess new physical properties or exhibit new physical phenomena. Nanotechnology has an extremely broad range of potential applications from nanoscale electronics and optics and therefore it requires formation of and contribution from multidisciplinary teams of physicists, chemists, materials scientists and engineers. The aim of this book “Growth and Characterization of Semiconductor Nanostructure for Device Applications” is to summarize the fundamentals and established techniques of synthesis, fabrication, characterization and applications of nanomaterials and nanostructures so as to provide readers a systematic and coherent picture about synthesis, fabrication and characterization of nanomaterials.