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Zinc Oxide Thin Films For Transparent Conducting Oxide Application
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Book Synopsis Transparent Conductive Zinc Oxide by : Klaus Ellmer
Download or read book Transparent Conductive Zinc Oxide written by Klaus Ellmer and published by Springer Science & Business Media. This book was released on 2007-12-29 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) belongs to the class of transparent conducting oxides that can be used as transparent electrodes in electronic devices or heated windows. In this book the material properties of, the deposition technologies for, and applications of zinc oxide in thin film solar cells are described in a comprehensive manner. Structural, morphological, optical and electronic properties of ZnO are treated in this review.
Book Synopsis Zinc Oxide Thin Films for Transparent Conducting Oxide Application by : Vinod Kumar
Download or read book Zinc Oxide Thin Films for Transparent Conducting Oxide Application written by Vinod Kumar and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transparent Conducting Oxides (TCOs) are unusual materials as they have to possess a high electrical conductivity with good transparency in the visible region of electromagnetic spectrum. TCOs have many applica-tions such as electrical inter-connections for window electrodes in flat panel displays, electro-optical devices and solar cells. TCOs are also receiving much attention and recognition as they are promising candidate for optoelectronic application in the ultraviolet to visible range. Other important parameters that determine the usefulness of TCOs are environmental stability, process-ing compatibility with other device elements and production cost etc. Indium (In) doped tin oxide also known as ITO is used as TCO in industries. Now a days, TCOs have already been largely investigated. Therefore, in the recent years, this has stimulated the development of new TCO materials like doped ZnO."
Book Synopsis Transparent Conductive Zinc Oxide by : Klaus Ellmer
Download or read book Transparent Conductive Zinc Oxide written by Klaus Ellmer and published by Springer. This book was released on 2009-09-02 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) belongs to the class of transparent conducting oxides that can be used as transparent electrodes in electronic devices or heated windows. In this book the material properties of, the deposition technologies for, and applications of zinc oxide in thin film solar cells are described in a comprehensive manner. Structural, morphological, optical and electronic properties of ZnO are treated in this review.
Book Synopsis Zinc-based Thin Films for Transparent Conducting Oxide Applications by : Dominic Potter
Download or read book Zinc-based Thin Films for Transparent Conducting Oxide Applications written by Dominic Potter and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Zinc Oxide Transparent Thin Films for Optoelectronics by : Karthik Sivaramakrishnan
Download or read book Zinc Oxide Transparent Thin Films for Optoelectronics written by Karthik Sivaramakrishnan and published by . This book was released on 2010 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The object of this body of work is to study the properties and suitability of zinc oxide thin films with a view to engineering them for optoelectronics applications, making them a cheap and effective alternative to indium tin oxide (ITO), the most used transparent conducting oxides in the industry. Initially, a study was undertaken to examine the behavior of silver contacts to ZnO and ITO during thermal processing, a step frequently used in materials processing in optoelectronics. The second study involved an attempt to improve the conductivity of ZnO films by inserting a thin copper layer between two ZnO layers. The Hall resistivity of the films was as low as 6.910-5 omega-cm with a carrier concentration of 1.21022 cm-3 at the optimum copper layer thickness. The physics of conduction in the films has been examined. In order to improve the average visible transmittance, we replaced the copper layer with gold. The films were then found to undergo a seven orders of magnitude drop in effective resistivity from 200 omega-cm to 5.210-5 omega-cm The films have an average transmittance between 75% and 85% depending upon the gold thickness, and a peak transmittance of up to 93%. The best Haacke figure of merit was 15.110-3 omega -1. Finally, to test the multilayer transparent electrodes on a device, ZnO/Au/ZnO (ZAZ) electrodes were evaluated as transparent electrodes for organic light-emitting devices (OLEDs). The electrodes exhibited substantially enhanced conductivity (about 810-5 omega-cm) over conventional indium tin oxide (ITO) electrodes (about 3.210-5 omega-cm). OLEDs fabricated with the ZAZ electrodes showed reduced leakage compared to control OLEDs on ITO and reduced ohmic losses at high current densities. At a luminance of 25000 cd/m2, the lum/W efficiency of the ZAZ electrode based device improved by 5% compared to the device on ITO. A normalized intensity graph of the colour output from the green OLEDs shows that ZAZ electrodes allow for a broader spectral output in the green wavelength region of peak photopic sensitivity compared to ITO. The results have implications for electrode choice in display technology.
Book Synopsis Zinc-based Thin Films for Transparent Conducting Oxide Applications by : D. Potter
Download or read book Zinc-based Thin Films for Transparent Conducting Oxide Applications written by D. Potter and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Zinc Oxide TCOs (transparent Conductive Oxides) and Polycrystalline Silicon Thin-films for Photovoltaic Applications by : Dengyuan Song
Download or read book Zinc Oxide TCOs (transparent Conductive Oxides) and Polycrystalline Silicon Thin-films for Photovoltaic Applications written by Dengyuan Song and published by . This book was released on 2005 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Zinc Oxide Bulk, Thin Films and Nanostructures by : Chennupati Jagadish
Download or read book Zinc Oxide Bulk, Thin Films and Nanostructures written by Chennupati Jagadish and published by Elsevier. This book was released on 2011-10-10 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis SYNTHESIS AND CHARACTERIZATION OF TRANSPARENT CONDUCTIVE ZINC OXIDE THIN FILMS BY SOL-GEL SPIN COATING METHOD by : David Winarski
Download or read book SYNTHESIS AND CHARACTERIZATION OF TRANSPARENT CONDUCTIVE ZINC OXIDE THIN FILMS BY SOL-GEL SPIN COATING METHOD written by David Winarski and published by . This book was released on 2015 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide has been given much attention recently as it is promising for various semiconductor device applications. ZnO has a direct band gap of 3.3 eV, high exciton binding energy of 60 meV and can exist in various bulk powder and thin film forms for different applications. ZnO is naturally n-type with various structural defects, which sparks further investigation into the material properties. Although there are many potential applications for this ZnO, an overall lack of understand and control of intrinsic defects has proven difficult to obtain consistent, repeatable results. This work studies both synthesis and characterization of zinc oxide in an effort to produce high quality transparent conductive oxides. The sol-gel spin coating method was used to obtain highly transparent ZnO thin films with high UV absorbance. This research develops a new more consistent method for synthesis of these thin films, providing insight for maintaining quality control for each step in the procedure. A sol-gel spin coating technique is optimized, yielding highly transparent polycrystalline ZnO thin films with tunable electrical properties. Annealing treatment in hydrogen and zinc atmospheres is researched in an effort to increase electrical conductivity and better understand intrinsic properties of the material. These treatment have shown significant effects on the properties of ZnO. Characterization of doped and undoped ZnO synthesized by the sol-gel spin coating method was carried out using scanning electron microscopy, UV-Visible range absorbance, X-ray diffraction, and the Hall Effect. Treatment in hydrogen shows an overall decrease in the number of crystal phases and visible absorbance while zinc seems to have the opposite effect. The Hall Effect has shown that both annealing environments increase the n-type conductivity, yielding a ZnO thin film with a carrier concentration as high as 3.001 × 1021 cm-3.
Book Synopsis Dopants and Transport Properties of Transparent Conducting Zinc Oxide Thin Films by : Joel N. Duenow
Download or read book Dopants and Transport Properties of Transparent Conducting Zinc Oxide Thin Films written by Joel N. Duenow and published by . This book was released on 2008 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Transparent Conductors by : David S. Ginley
Download or read book Handbook of Transparent Conductors written by David S. Ginley and published by Springer Science & Business Media. This book was released on 2010-09-11 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transparent conducting materials are key elements in a wide variety of current technologies including flat panel displays, photovoltaics, organic, low-e windows and electrochromics. The needs for new and improved materials is pressing, because the existing materials do not have the performance levels to meet the ever- increasing demand, and because some of the current materials used may not be viable in the future. In addition, the field of transparent conductors has gone through dramatic changes in the last 5-7 years with new materials being identified, new applications and new people in the field. “Handbook of Transparent Conductors” presents transparent conductors in a historical perspective, provides current applications as well as insights into the future of the devices. It is a comprehensive reference, and represents the most current resource on the subject.
Book Synopsis Transparent Conductive Materials by : David Levy
Download or read book Transparent Conductive Materials written by David Levy and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by well-known pioneers in the field, this handbook and ready reference provides a comprehensive overview of transparent conductive materials with a strong application focus. Following an introduction to the materials and recent developments, subsequent chapters discuss the synthesis and characterization as well as the deposition techniques that are commonly used for energy harvesting and light emitting applications. Finally, the book concludes with a look at future technological advances. All-encompassing and up-to-date, this interdisciplinary text runs the gamut from chemistry and materials science to engineering, from academia to industry, and from fundamental challenges to readily available applications.
Book Synopsis Synthesis and Characterization of Zinc Oxide Nanocolloid for Transparent Conducting Thin Films by : Swati Sharma
Download or read book Synthesis and Characterization of Zinc Oxide Nanocolloid for Transparent Conducting Thin Films written by Swati Sharma and published by . This book was released on 2007 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conducting and Optical Properties of Transparent Conducting Indium-Doped Zinc Oxide Thin Films by Sol-Gel Processing by :
Download or read book Conducting and Optical Properties of Transparent Conducting Indium-Doped Zinc Oxide Thin Films by Sol-Gel Processing written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Transparent conducting oxides were successfully prepared from mixed zinc nitrate hexahydrate and indium nitrate hydrate solutions in ethylene glycol using sol-gel technique. The In content in the film was varied (0, 2, 10, 20, 40, 75 and 100 atom %). Films were prepared by spin coating of the liquid precursors followed by thermal decomposition at 400° C after each layer. According to X-ray diffraction (XRD) measurements, the pure ZnO and pure InO films (0 and at 100 % In) were crystalline as-deposited. The crystallinity was suppressed in mixed compositions such that the films with compositions between 10 and 75 at % were amorphous. All the films were transparent with the transmission cut-off frequency near 400 nm, which is characteristic of TCO materials. All as-deposited films were conductive with 0 and 100 atom % In having the lowest resistivities. The resistivity of all compositions were improved by post-deposition reducing anneal in pure Ar at 300° C. The lowest resistivity of 0.2?cm was obtained for the pure ZnO after Ar anneal. It was two-orders of magnitude higher than reported in the literature for the In-doped ZnO, which was attributed to the low processing temperature. The resistivities of as-deposited and annealed in Ar films were increased by consequent air anneal at 300° C.
Book Synopsis Indium Zinc Oxide Thin Films by : Matthew P. Taylor
Download or read book Indium Zinc Oxide Thin Films written by Matthew P. Taylor and published by . This book was released on 2005 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Zinc Oxide Bulk, Thin Films and Nanostructures: Processing, Properties, and Applications by : Chennupati Jagadish
Download or read book Zinc Oxide Bulk, Thin Films and Nanostructures: Processing, Properties, and Applications written by Chennupati Jagadish and published by Elsevier Science. This book was released on 2006-09 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book High Quality ZnO written by and published by . This book was released on 2009 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aluminum-doped zinc oxide, ZnO:Al or AZO, is a well-known n-type transparent conducting oxide with great potential in a number of applications currently dominated by indium tin oxide (ITO). In this study, the optical and electrical properties of AZO thin films deposited on glass and silicon by pulsed filtered cathodic arc deposition are systematically studied. In contrast to magnetron sputtering, this technique does not produce energetic negative ions, and therefore ion damage can be minimized. The quality of the AZO films strongly depends on the growth temperature while only marginal improvements are obtained with post-deposition annealing. The best films, grown at a temperature of about 200?C, have resistivities in the low to mid 10-4 Omega cm range with a transmittance better than 85percent in the visible part of the spectrum. It is remarkable that relatively good films of small thickness (60 nm) can be fabricated using this method.
