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Author : Fei Tong
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (974 download)
Download or read book Fabrication and Characterization of ZnO and GaN Devices for Electronic and Photonic Applications written by Fei Tong and published by . This book was released on 2013 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fei Tong
Publisher :
ISBN 13 : 9783659550928
Total Pages : 160 pages
Book Rating : 4.5/5 (59 download)
Download or read book ZnO and GaN Devices for Nanophotonic and Microelectronic Applications written by Fei Tong and published by . This book was released on 2014-06-28 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fabrication and Characterization of GaN-based Semiconductor Devices on Si Substrates for High-Power Electronic Applications written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stephen Pearton
Publisher : Springer Science & Business Media
ISBN 13 : 3642235212
Total Pages : 497 pages
Book Rating : 4.6/5 (422 download)
Download or read book GaN and ZnO-based Materials and Devices written by Stephen Pearton and published by Springer Science & Business Media. This book was released on 2012-01-14 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The AlInGaN and ZnO materials systems have proven to be one of the scientifically and technologically important areas of development over the past 15 years, with applications in UV/visible optoelectronics and in high-power/high-frequency microwave devices. The pace of advances in these areas has been remarkable and the wide band gap community relies on books like the one we are proposing to provide a review and summary of recent progress.
Author : 張家達
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (795 download)
Download or read book Fabrication and Characterization of GaN-based Semiconductor Devices for High Frequency and High Power Applications written by 張家達 and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Augustine Che Mofor
Publisher : Cuvillier Verlag
ISBN 13 : 3736922868
Total Pages : 138 pages
Book Rating : 4.7/5 (369 download)
Download or read book Fabrication and Characterisation of Device Quality ZnO Nanostructures written by Augustine Che Mofor and published by Cuvillier Verlag. This book was released on 2007-07-11 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since ZnO resurfaced as a very promising semiconductor material for applications in microelectronics, optoelectronics, sensor technology, biomedicine and spin electronics, producing high purity ZnO nanostructures for such applications has rather proven to be challenging. This book first revises the main properties of ZnO as a semiconductor and nanomaterial and also some fabrication techniques for nanostructures. It later concentrates on the development of a vapour transport system for the growth of high quality ZnO nanostructures (mainly nanorods). The book attempts to explain the influence of reactor pressure, growth temperature and growth time on the morphology and quality of ZnO nanorods. While intrinsic (undoped) ZnO nanorods were grown for extensive analysis, transition metal-doped ZnO nanorods were also fabricated and investigated for possible applications in magnetoelectronics/spintronics. Conventional material characterisation methods are also revisited and employed to analyse the crystalline quality, optical, electrical and magnetic properties of ZnO nanorods. Since the book is writtenin an application-oriented fashion, it extends to the fabrication of ZnO nanrorod-based device structures. Here, nano p-n junctions and nano ZnO/ZnMgO quantum well structures are also presented. At the end, the reader clearly sees how ZnO nanorods of extremely high crystalline quality can be grown using an unconventional technique.
Author : Klaus D. Sattler
Publisher : CRC Press
ISBN 13 : 1420075519
Total Pages : 782 pages
Book Rating : 4.4/5 (2 download)
Download or read book Handbook of Nanophysics written by Klaus D. Sattler and published by CRC Press. This book was released on 2010-09-17 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many bottom-up and top-down techniques for nanomaterial and nanostructure generation have enabled the development of applications in nanoelectronics and nanophotonics. Handbook of Nanophysics: Nanoelectronics and Nanophotonics explores important recent applications of nanophysics in the areas of electronics and photonics. Each peer-reviewed c
Author :
Publisher : Elsevier
ISBN 13 : 1782422358
Total Pages : 555 pages
Book Rating : 4.7/5 (824 download)
Download or read book Modeling, Characterization and Production of Nanomaterials written by and published by Elsevier. This book was released on 2015-03-17 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nano-scale materials have unique electronic, optical, and chemical properties which make them attractive for a new generation of devices. Part one of Modeling, Characterization, and Production of Nanomaterials: Electronics, Photonics and Energy Applications covers modeling techniques incorporating quantum mechanical effects to simulate nanomaterials and devices, such as multiscale modeling and density functional theory. Part two describes the characterization of nanomaterials using diffraction techniques and Raman spectroscopy. Part three looks at the structure and properties of nanomaterials, including their optical properties and atomic behaviour. Part four explores nanofabrication and nanodevices, including the growth of graphene, GaN-based nanorod heterostructures and colloidal quantum dots for applications in nanophotonics and metallic nanoparticles for catalysis applications. Comprehensive coverage of the close connection between modeling and experimental methods for studying a wide range of nanomaterials and nanostructures Focus on practical applications and industry needs, supported by a solid outlining of theoretical background Draws on the expertise of leading researchers in the field of nanomaterials from around the world
Download or read book Fabrication and Characterization of GaN-based Semiconductor Devices for High-Power and Microwave Power Applications written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gyu-Chul Yi
Publisher : Springer Science & Business Media
ISBN 13 : 3642224806
Total Pages : 347 pages
Book Rating : 4.6/5 (422 download)
Download or read book Semiconductor Nanostructures for Optoelectronic Devices written by Gyu-Chul Yi and published by Springer Science & Business Media. This book was released on 2012-01-13 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Fan Ren
Publisher : The Electrochemical Society
ISBN 13 : 1566776589
Total Pages : 127 pages
Book Rating : 4.5/5 (667 download)
Download or read book ZnO Based Thin Films, Nano-Wires, and Nano-Belts for Photonic and Electronic Devices and Sensors written by Fan Ren and published by The Electrochemical Society. This book was released on 2008-10 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this issue of ECS Transactions were originally presented in the symposium ¿ZnO Based Thin Films, Nano-Wires, and Nano-Belts for Photonic and Electronic Devices and Sensors¿, during the PRiME 2008 meeting, held in Honolulu, Hawaii, from October 12 to 17, 2008.
Author : Wengang (Wayne) Bi
Publisher : CRC Press
ISBN 13 : 1351648055
Total Pages : 775 pages
Book Rating : 4.3/5 (516 download)
Download or read book Handbook of GaN Semiconductor Materials and Devices written by Wengang (Wayne) Bi and published by CRC Press. This book was released on 2017-10-20 with total page 775 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses material growth, device fabrication, device application, and commercialization of energy-efficient white light-emitting diodes (LEDs), laser diodes, and power electronics devices. It begins with an overview on basics of semiconductor materials, physics, growth and characterization techniques, followed by detailed discussion of advantages, drawbacks, design issues, processing, applications, and key challenges for state of the art GaN-based devices. It includes state of the art material synthesis techniques with an overview on growth technologies for emerging bulk or free standing GaN and AlN substrates and their applications in electronics, detection, sensing, optoelectronics and photonics. Wengang (Wayne) Bi is Distinguished Chair Professor and Associate Dean in the College of Information and Electrical Engineering at Hebei University of Technology in Tianjin, China. Hao-chung (Henry) Kuo is Distinguished Professor and Associate Director of the Photonics Center at National Chiao-Tung University, Hsin-Tsu, Taiwan, China. Pei-Cheng Ku is an associate professor in the Department of Electrical Engineering & Computer Science at the University of Michigan, Ann Arbor, USA. Bo Shen is the Cheung Kong Professor at Peking University in China.
Author : Cole W. Litton
Publisher : John Wiley & Sons
ISBN 13 : 0470519711
Total Pages : 403 pages
Book Rating : 4.4/5 (75 download)
Download or read book Zinc Oxide Materials for Electronic and Optoelectronic Device Applications written by Cole W. Litton and published by John Wiley & Sons. This book was released on 2011-06-07 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc Oxide (ZnO) powder has been widely used as a white paint pigment and industrial processing chemical for nearly 150 years. However, following a rediscovery of ZnO and its potential applications in the 1950s, science and industry alike began to realize that ZnO had many interesting novel properties that were worthy of further investigation. ZnO is a leading candidate for the next generation of electronics, and its biocompatibility makes it viable for medical devices. This book covers recent advances including crystal growth, processing and doping and also discusses the problems and issues that seem to be impeding the commercialization of devices. Topics include: Energy band structure and spintronics Fundamental optical and electronic properties Electronic contacts of ZnO Growth of ZnO crystals and substrates Ultraviolet photodetectors ZnO quantum wells Zinc Oxide Materials for Electronic and Optoelectronic Device Applications is ideal for university, government, and industrial research and development laboratories, particularly those engaged in ZnO and related materials research.
Author : Takafumi Yao
Publisher : Springer Science & Business Media
ISBN 13 : 3540888470
Total Pages : 525 pages
Book Rating : 4.5/5 (48 download)
Download or read book Oxide and Nitride Semiconductors written by Takafumi Yao and published by Springer Science & Business Media. This book was released on 2009-03-20 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a unique book devoted to the important class of both oxide and nitride semiconductors. It covers processing, properties and applications of ZnO and GaN. The aim of this book is to provide the fundamental and technological issues for both ZnO and GaN.
Author : Chi-man Luk
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (793 download)
Download or read book Fabrication and Characterization of ZnO-based Light-emitting Diodes written by Chi-man Luk and published by . This book was released on 2012 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the optimized growth parameters, n-ZnO:Al/i-ZnO/p-GaN:Mg heterojunction LEDs were fabricated. The electrical characteristics of the diodes were investigated. The ultraviolet (UV) electroluminescence (EL) from the device was detected at room temperature. The emission is attributed to the electron-hole radiative recombination in the ZnO region and is explained in detail by an energy band diagram. ZnO nanostructures are expected to have improved optical and electronic properties because of the quantum confinement effect. Using low-temperature aqueous chemical method, the ZnO nanorods arrays were grown on the buffer layers prepared at various temperatures. The nanorods were grown along [0001] direction. The PL measurement indicated that the emission spectrum covered a UV peak at ~ 380 nm and a broad visible band at ~ 560 nm. The PL spectra of the ZnO nanorods are independent on the growth temperature of the buffer layer. Moreover, the buffer-layer-thickness-dependent structural and optical properties were studied. The as-grown ZnO nanorods were utilized to fabricate hybrid LED with an organic semiconductor, N, N'-diphenyl-N, N'-bis(1-naphthyl)-1, 1'-biphenyl-4, 4'-diamine (?NPD), which is one of the most widely used hole transport and blue-emitting organic semiconductors. Current-voltage characteristics of the devices exhibited nonlinear rectifying behaviour. The EL spectra of the hybrid LEDs reveal a blue and broad yellowish green emission originated from the?NPD layer and the defect levels of the ZnO respectively. The origin of the emission bands from the hybrid structures will be examined.
Author : Yu-Hang Leung
Publisher : Open Dissertation Press
ISBN 13 : 9781361417188
Total Pages : pages
Book Rating : 4.4/5 (171 download)
Download or read book Fabrication and Characterization of Zinc Oxide (Zno) Nanostructures written by Yu-Hang Leung and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Fabrication and Characterization of Zinc Oxide (ZnO) Nanostructures" by Yu-hang, Leung, 梁宇恆, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled FABRICATION AND CHARACTERIZATION OF ZINC OXIDE (ZnO) NANOSTRUCTURES Submitted by Leung Yu Hang For the degree of Master of Philosophy at The University of Hong Kong in January 2006 Since the discovery of carbon nanotubes by Iijima in 1991, increasing research effort has been devoted to the synthesis and characterization of nanostructured materials. Materials at this scale exhibit novel properties which cannot be found in their bulk form. In silicon nanowires, for example, the bandgap of Si nanowires increases from 1.1 eV to 3.7 eV when the nanowire diameter decreases from 7 nm to 1.3 nm. In recent years, nanostructures of various semiconductors like Si, gallium arsenide, gallium nitride, and zinc oxide have been demonstrated. Among them, ZnO has been recognized as a promising material for a variety of applications in the field of photonics, optoelectronics, gas sensing, field emission, and piezoelectrics. To realize the incorporation of ZnO nanostructures into real life applications, lots of work need to be done, including synthesis of the nanostructures, and understanding of their properties. In this study, a number of ZnO nanostructures (tetrapods, nanorods, nanoribbons/combs, multipods) were fabricated by thermal evaporation and hydrothermal synthesis methods. The morphologies and, structural and optical properties of the resultant nanostructures were then characterized by various techniques, such as scanning electron microscopy, transmission electron microscopy, selected area electron diffraction, energy dispersive X-ray spectroscopy, X-ray diffractometry, photoluminescence and electron paramagnetic resonance. It was observed that fabrication conditions could significantly affect the properties of the nanostructures. All nanostructures exhibited one UV peak and one broad peak in the visible spectrum. The major difference is that the nanostructures fabricated by thermal evaporation exhibited green PL emission while the nanorods synthesized by hydrothermal method gave yellow emission. Green emission was observed even without the presence of the EPR signal at g 1.96 in some samples. This result contradicts the commonly cited oxygen vacancy hypothesis of green emission of ZnO. Obviously, that hypothesis does not apply to all ZnO samples. The nanorod sample with yellow emission also exhibited strong EPR signal similar to the green emitting sample. A possible explanation for the obtained results is that there are two different deep levels responsible for the green and yellow emission respectively. Stimulated UV emission of three different nanostructures (tetrapods, nanoribbons/combs, and nanorods) was studied by time-resolved photoluminescence (TRPL). It was observed that different nanostructures exhibited different lasing thresholds, emission delay times and decay times. The difference in the lasing behaviors of the nanostructures is likely due to the difference in morphology, mode of cavity, or even native defects present in the material. DOI: 10.5353/th_b3617532 Subjects: Nanostructures Zinc oxide
Author : Seyed Ebrahim Chalangar
Publisher : Linköping University Electronic Press
ISBN 13 : 9179296823
Total Pages : 132 pages
Book Rating : 4.1/5 (792 download)
Download or read book Synthesis and Characterization of ZnO/Graphene Nanostructures for Electronics and Photocatalysis written by Seyed Ebrahim Chalangar and published by Linköping University Electronic Press. This book was released on 2021-04-08 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent rapid development of electronics and electro-optical devices demands affordable and reliable materials with enhanced performance. Forming nanocomposites of already well-known materials is one possible route towards novel functional materials with desirable synergistic enhanced properties. Incompatible chemical properties, mismatched crystal structures and weak bonding interactions between the substances, however, often limit the number of possible nanocomposites. Moreover, using an inexpensive, facile, large-area and flexible fabrication technique is crucial to employ the new composites in industrially viable applications. This thesis focuses on the synthesis and characterization of different zinc oxide/graphene (ZnO/GR) nanocomposites, well suited for optoelectronics and photocatalysis applications. Two different approaches of i) substrate-free random synthesis, and ii) template-assisted selective area synthesis were studied in detail. In the first approach, ZnO nanoparticles/rods were grown on GR. The obtained nanocomposites were investigated for better GR dispersity, electrical conductivity and optical properties. Besides, by adding silver iodide to the nanocomposite, an enhanced plasmonic solar-driven photocatalyst was synthesized and analyzed. In the second approach, arrays of single, vertically aligned ZnO nanorods were synthesized using a colloidal lithography-patterned sol-gel ZnO seed layer. Our demonstrated nanofabrication technique with simple, substrate independent, and large wafer-scale area compatibility improved the alignment and surface density of ZnO nanorods over large selective growth areas. Eventually, we found a novel method to further enhance the vertical alignment of the ZnO nanorods by introducing a GR buffer layer between the Si substrate and the ZnO seed layer, together with the mentioned patterning technique. The synthesized nanocomposites were analyzed using a large variety of experimental techniques including electron microscopy, photoelectron spectroscopy, x-ray diffraction, photoluminescence and cathodoluminescence spectroscopy for in-depth studies of their morphology, chemical and optical properties. Our findings show that the designed ZnO/GR nanocomposites with vertically aligned ZnO nanorods of high crystalline quality, synthesized with the developed low-cost nanofabrication technique, can lead to novel devices offering higher performance at a significantly lower fabrication cost.
