Optoelectronics Devices Based On Zinc Oxide Thin Films And Nanostructures
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Optoelectronics Devices Based On Zinc Oxide Thin Films And Nanostructures
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Author : Sheng Chu
language : en
Publisher:
Release Date : 2011
Optoelectronics Devices Based On Zinc Oxide Thin Films And Nanostructures written by Sheng Chu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Light emitting diodes categories.
Optoelectronics devices based on ZnO thin films and nanostructures are discussed in this dissertation. A ZnO homojunction LED was demonstrated. Sb-doped p-type ZnO and Ga-doped n-type ZnO on Si (100) substrate were used for the LED device. After achieving ohmic contacts on both types of ZnO, the device showed rectifying current-voltage (I-V) characteristics. Under forward bias, the device successfully showed ultraviolet emissions. The emission properties were analyzed and the emission was confirmed to come from ZnO near band edge emissions. Further analysis showed that the emission mainly comes from the p-type layer of the device. A ZnO ultraviolet laser diode was fabricated and demonstrated. The device consists of Sb-doped p-type ZnO layer and Ga-doped n-type ZnO layer. In between p-layer and n-layer, a thin MgZnO/ZnO/MgZnO quantum well structure was inserted. In this device, random lasing mechanism plays an important role. When the diode was biased, the generation of light was enhanced by the carrier localization effect from the quantum well. The light was scattered between the ZnO random grain boundaries. Since the scattering effect can be so intense that some of the light can return to its original place to form close travel loop, as "random laser cavity". As long as the gain can overcome loss from scattering and material loss, lasing action can be demonstrated. An improved ZnO LED device was grown and characterized. The device grown on c-plane sapphire substrate can favor ultimate device applications due to the improved crystal quality of ZnO and the possibility of getting single crystallinity. A double heterostructure (MgZnO/ZnO/MgZnO) was also inserted in between p-layer and n-layer of the device to enhance the light output. The device showed much enhanced output power of 457 nW, which is two orders stronger than the LED fabricated on Si substrate. The optimization of high quality ZnO thin film on c-plane sapphire substrate was discussed. The devices in chapter two, three and four utilized Si or sapphire substrate, and are all in polycrystalline nature. To solve this problem and get the basis of high output power LEDs and lasers, single crystalline, two dimensional surface ZnO thin films were grown in chapter five. MgO/ZnO double buffer layers were used to accommodate the lattice mismatch. MgO thickness was found to be very important in achieving good ZnO thin film. An optimized growth also yields low background electron concentration and high mobility, which can enable future high quality p-type ZnO engineering. Our research was also expanded from ZnO thin films to ZnO nanostructures. The purpose of chapter six is to demonstrate a ZnO nanowire laser. ZnO nanowires are an excellent cavity and itself is a great gain material. We expanded Sb-doped p-type ZnO from thin films to ZnO nanowires. A p-type ZnO nanowire/n-type ZnO thin film p-n junction was achieved. The device showed lasing action when injection current was larger than ~50 mA. The lasing mechanism and gain/feedback were also discussed in detail.
Metal Oxide Nanocomposite Thin Films For Optoelectronic Device Applications
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Author : Rayees Ahmad Zargar
language : en
Publisher: John Wiley & Sons
Release Date : 2023-11-07
Metal Oxide Nanocomposite Thin Films For Optoelectronic Device Applications written by Rayees Ahmad Zargar 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 2023-11-07 with Technology & Engineering categories.
METAL OXIDE NANOCOMPOSITE THIN FILMS FOR OPTOELECTRONIC DEVICE APPLICATIONS The book provides insight into the fundamental aspects, latest research, synthesis route development, preparation, and future applications of metal oxide nanocomposite thin films. The fabrication of thin film-based materials is important to the future production of safe, efficient, and affordable energy as the devices convert sunlight into electricity. Thin film devices allow excellent interface engineering for high-performance printable solar cells as their structures are highly reliable and stand-alone systems can provide the required megawatts. They have been used as power sources in solar home systems, remote buildings, water pumping, megawatt-scale power plants, satellites, communications, and space vehicles. Metal Oxide Nanocomposite Thin Films for Optoelectronic Device Applications covers the basics of advanced nanometal oxide-based materials, their synthesis, characterization, and applications, and all the updated information on optoelectronics. Topics discussed include the implications of metal oxide thin films, which are critical for device fabrications. It provides updated information on the economic aspect and toxicity, with great focus paid to display applications, and covers some core areas of nanotechnology, which are particularly concerned with optoelectronics and the available technologies. The book concludes with insights into the role of nanotechnology and the physics behind photovoltaics. Audience The book will be an important volume for electronics and electrical engineers, nanotechnologists, materials scientists, inorganic chemists in academic research, and those in industries, exploring the applications of nanoparticles in semiconductors, power electronics, and more.
Zinc Oxide Bulk Thin Films And Nanostructures
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Author : Chennupati Jagadish
language : en
Publisher: Elsevier
Release Date : 2011-10-10
Zinc Oxide Bulk Thin Films And Nanostructures written by Chennupati Jagadish and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-10-10 with Technology & Engineering categories.
With an in-depth exploration of the following topics, this book covers the broad uses of zinc oxide within the fields of materials science and engineering: - Recent advances in bulk , thin film and nanowire growth of ZnO (including MBE, MOCVD and PLD), - The characterization of the resulting material (including the related ternary systems ZgMgO and ZnCdO), - Improvements in device processing modules (including ion implantation for doping and isolation ,Ohmic and Schottky contacts , wet and dry etching), - The role of impurities and defects on materials properties - Applications of ZnO in UV light emitters/detectors, gas, biological and chemical-sensing, transparent electronics, spintronics and thin film
Zinc Oxide Bulk Thin Films And Nanostructures
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Author : Chennupati Jagadish
language : en
Publisher: Elsevier Science Limited
Release Date : 2006
Zinc Oxide Bulk Thin Films And Nanostructures written by Chennupati Jagadish and has been published by Elsevier Science Limited this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.
With an in-depth exploration of the following topics, this book covers the broad uses of zinc oxide within the fields of materials science and engineering: - Recent advances in bulk , thin film and nanowire growth of ZnO (including MBE, MOCVD and PLD), - The characterization of the resulting material (including the related ternary systems ZgMgO and ZnCdO), - Improvements in device processing modules (including ion implantation for doping and isolation ,Ohmic and Schottky contacts , wet and dry etching), - The role of impurities and defects on materials properties - Applications of ZnO in UV light emitters/detectors, gas, biological and chemical-sensing, transparent electronics, spintronics and thin film
Chemical Vapor Deposition And Characterization Of Zinc Oxide Thin Films And Nanostructure
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Author : Xiang Liu
language : en
Publisher:
Release Date : 2003
Chemical Vapor Deposition And Characterization Of Zinc Oxide Thin Films And Nanostructure written by Xiang Liu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Zinc oxide (ZnO) is a wide band gap semiconductor material. It is a promising candidate for short wavelength optoelectronic devices.
Handbook Of Zinc Oxide And Related Materials
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Author : Zhe Chuan Feng
language : en
Publisher: CRC Press
Release Date : 2012-09-26
Handbook Of Zinc Oxide And Related Materials written by Zhe Chuan Feng and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-26 with Technology & Engineering categories.
Through their application in energy-efficient and environmentally friendly devices, zinc oxide (ZnO) and related classes of wide gap semiconductors, including GaN and SiC, are revolutionizing numerous areas, from lighting, energy conversion, photovoltaics, and communications to biotechnology, imaging, and medicine. With an emphasis on engineering and materials science, Handbook of Zinc Oxide and Related Materials provides a comprehensive, up-to-date review of various technological aspects of ZnO. Volume Two focuses on devices and nanostructures created from ZnO and similar materials. The book covers various nanostructures, synthesis/creation strategies, device behavior, and state-of-the-art applications in electronics and optoelectronics. It also provides useful information on the device and nanoscale process and examines the fabrication of LEDs, LDs, photodetectors, and nanodevices. Covering key properties and important technologies of ZnO-based devices and nanoengineering, the handbook highlights the potential of this wide gap semiconductor. It also illustrates the remaining challenging issues in nanomaterial preparation and device fabrication for R&D in the twenty-first century.
Handbook Of Zinc Oxide And Related Materials
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Author : Zhe Chuan Feng
language : en
Publisher: CRC Press
Release Date : 2012-09-26
Handbook Of Zinc Oxide And Related Materials written by Zhe Chuan Feng and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-26 with Technology & Engineering categories.
Through their application in energy-efficient and environmentally friendly devices, zinc oxide (ZnO) and related classes of wide gap semiconductors, including GaN and SiC, are revolutionizing numerous areas, from lighting, energy conversion, photovoltaics, and communications to biotechnology, imaging, and medicine. With an emphasis on engineering and materials science, Handbook of Zinc Oxide and Related Materials provides a comprehensive, up-to-date review of various technological aspects of ZnO. Volume One presents fundamental knowledge on ZnO-based materials and technologies. It covers the basic physics and chemistry of ZnO and related compound semiconductors and alloys. The first part of this volume discusses preparation methods, modeling, and doping strategies. It then describes epitaxial methods used to create thin films and functional materials. The book concludes with a review of alloys and related materials, exploring their preparation, bulk properties, and applications. Covering key properties and important technologies of ZnO-based devices and nano-engineering, the handbook highlights the potential of this wide gap semiconductor. It also illustrates the remaining challenging issues in nanomaterial preparation and device fabrication for R&D in the twenty-first century.
Nanostructured Zinc Oxide
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Author : Kamlendra Awasthi
language : en
Publisher: Elsevier
Release Date : 2021-08-10
Nanostructured Zinc Oxide written by Kamlendra Awasthi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-10 with Technology & Engineering categories.
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
Metal Oxides For Optoelectronics And Optics Based Medical Applications
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Author : Suresh Sagadevan
language : en
Publisher: Elsevier
Release Date : 2022-07-01
Metal Oxides For Optoelectronics And Optics Based Medical Applications written by Suresh Sagadevan and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-01 with Technology & Engineering categories.
Metal Oxides for Optoelectronics and Optics-based Medical Applications reviews recent advances in metal oxides and their mechanisms for optoelectronic, photoluminescent and medical applications. In addition, the book examines the integration of key chemistry concepts with nanoelectronics that can improve performance in a diverse range of applications. Sections place a strong emphasis on synthesis processes that can improve the metal oxides’ physical properties and the reflected surface chemical changes that can impact their performance in various devices like light-emitting diodes, luminescence materials, solar cells, etc. Finally, the book discusses the challenges associated with the handling and maintenance of metal oxides crystalline properties. This book will be suitable for academics and those working in R&D in industry looking to learn more about cheaper and more effective methods to produce metal oxides for use in the fields of electronics, photonics, biophotonics and engineering. Reviews the latest advances in the utilization of metal oxide materials in photonics, optoelectronics and optics-based medical applications Considers the most relevant synthesis strategies for the development of high-performing metal oxide-based devices Addresses a wide range of metal oxides including photonic crystals, fibers, metastructures, glasses, and more
Optimisation Of Zno Thin Films
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Author : Saurabh Nagar
language : en
Publisher: Springer
Release Date : 2017-05-22
Optimisation Of Zno Thin Films written by Saurabh Nagar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-22 with Technology & Engineering categories.
This monograph describes the different implantation mechanisms which can be used to achieve strong, reliable and stable p-type ZnO thin films. The results will prove useful in the field of optoelectronics in the UV region. This book will prove useful to research scholars and professionals working on doping and implantation of ZnO thin films and subsequently fabricating optoelectronic devices. The first chapter of the monograph emphasises the importance of ZnO in the field of optoelectronics for ultraviolet (UV) region and also discusses the material, electronic and optical properties of ZnO. The book then goes on to discuss the optimization of pulsed laser deposited (PLD) ZnO thin films in order to make successful p-type films. This can enable achievement of high optical output required for high-efficiency devices. The book also discusses a hydrogen implantation study on the optimized films to confirm whether the implantation leads to improvement in the optimized results.
