Download or read book Flexible Transparent Electrodes for Optoelectronic Devices written by Lukas Kinner and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Strategy to Design Substrate Integrated Flexible Transparent Electrodes for High performance Organic Optoelectronic Devices written by Jinwook Kim (Researcher on electrical and electronic engineering) and published by . This book was released on 2021 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Performance Solution Processed Transparent Electrodes for Optoelectronic Devices written by Whitney Gaynor and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Many thin-film optoelectronic devices, including displays and photovoltaic cells, require transparent conducting films as part of their device architecture. Sputtered indium tin oxide (ITO) is the most commonly used material and has high performance but is expensive and has some performance limitations, especially on flexible substrates. This dissertation presents high-performance composite transparent conducting films comprised of silver nanowires and polymer films for use as a replacement for ITO in these devices. These composites have lower sheet resistance than ITO with comparable transmission on both glass and plastic substrates and are demonstrated in this work to be compatible with high-efficiency organic photovoltaic devices. They are also more mechanically robust to ITO and show nearly substrate-independent performance. These composites have the potential to enable both low-cost photovoltaics and flexible displays.

Download or read book Ultrathin Metal Transparent Electrodes for the Optoelectronics Industry written by Dhriti Sundar Ghosh and published by Springer Science & Business Media. This book was released on 2013-05-13 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transparent electrodes (TEs) are a class of materials that make it possible to bring electrical current or potentials in close proximity to optically active regions without significant loss of optical energy. However, it is a challenge to decouple the electrical and optical properties of a material, as the property of conductivity is strongly coupled to the imaginary part of the refractive index. An ideal TE has high transparency in combination with very low electrical resistivity. The main objective of the thesis was to develop TEs which can replace expensive, scarce and fragile Indium Tin Oxide (ITO), the most widely used TE material in the industry today. The thesis contains original work on ultrathin metal film (UTMF)-based TEs, which are essential elements in a wide range of optoelectronics, consumer electronics and energy devices. It presents new designs and fabrication methods and demonstrates the efficient use of UTMF-TEs in organic light emitting diodes and solar cells, achieving similar levels of efficiency to that of state-of-the-art ITO.

Download or read book Flexible and Stretchable Electronics written by Seung Hwan Ko and published by MDPI. This book was released on 2018-07-04 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Flexible and Stretchable Electronics" that was published in Micromachines

Download or read book Novel Transparent Composite Electrodes and Mixed Oxide Layers for Improved Flexible Electronics written by Aritra Dhar and published by . This book was released on 2015 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transparent conductive oxides (TCO) comprise a class of materials that exhibit unique combination of high transparency in the visible region along with high electrical conductivity. TCOs play an important role as transparent electrodes for optoelectronic devices such as solar cell panels, liquid crystal displays, transparent heat mirrors and organic light emitting devices (OLED). The most commonly used transparent electrodes in optoelectronic applications is indium tin oxide (ITO) due to its low resistivity (~ 10-4 [omega]-cm) and high transmittance (~ 80 %). However, the limited supply of indium and the growing demand for ITO make the resulting fabrication costs prohibitive for future industry. Thus, cost factors have promoted the search for inexpensive materials with good electric-optical properties. The object of this work is to study the structure-property-processing relationship and optimize a suitable transparent electrode with the intent to optimize them for flexible optoelectronics applications. The work focuses on improved processing of the mixed oxide (indium gallium zinc oxide, IGZO) thin films for superior optical and electrical properties. The study focuses on two different methods of post-deposition annealing-microwave and conventional. The microwave annealing was seen to have the dual advantage of reduced time and lower temperature, as compared to conventional annealing. Another work focuses on an indium free transparent composite electrode (TCE) where a very thin metal layer is inserted between the two TCO layers. A novel Nb2O5/Ag/Nb2O5 multilayered structure can exhibit better electrical and optical properties than a single layered TCO thin film. The focus for low cost alternative leads to a TiO2/metal/TiO2 based TCE. A systematic study was done to understand the effect of metal thickness and substituting different metals (Ag, Cu or Au) on the opto-electrical properties of the TCEs. The TiO2/Ag/TiO2 with mid Ag thickness 9.5 nm has been optimized to have a sheet resistance of 5.7 Ohm/sq. average optical transmittance of 90 % at 550 nm and figure of merit with 61.4 10-3 [omega]-1. The TCEs showed improved optical and electrical properties when annealed in forming gas and vacuum. These dielectric/metal/dielectric multilayer TCEs have lower total thickness and are more efficient than a single-layer ITO film.

Download or read book Flexible Carbon based Electronics written by Paolo Samorì and published by John Wiley & Sons. This book was released on 2019-02-11 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third volume in the Advanced Nanocarbon Materials series covers the topic of flexible electronics both from a materials and an applications perspective. Comprehensive in its scope, the monograph examines organic, inorganic and composite materials with a section devoted to carbon-based materials with a special focus on the generation and properties of 2D materials. It also presents carbon modifications and derivatives, such as carbon nanotubes, graphene oxide and diamonds. In terms of the topical applications covered these include, but are not limited to, flexible displays, organic electronics, transistors, integrated circuits, semiconductors and solar cells. These offer perspectives for today?s energy and healthcare challenges, such as electrochemical energy storage and wearable devices. Finally, a section on fundamental properties and characterization approaches of flexible electronics rounds off the book. Each contribution points out the importance of the structure-function relationship for the target-oriented fabrication of electronic devices, enabling the design of complex components.

Download or read book Organic Flexible Electronics written by Piero Cosseddu and published by Woodhead Publishing. This book was released on 2020-09-29 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic Electronics is a novel field of electronics that has gained an incredible attention over the past few decades. New materials, device architectures and applications have been continuously introduced by the academic and also industrial communities, and novel topics have raised strong interest in such communities, as molecular doping, thermoelectrics, bioelectronics and many others.Organic Flexible Electronics is mainly divided into three sections. The first part is focused on the fundamentals of organic electronics, such as charge transport models in these systems and new approaches for the design and synthesis of novel molecules. The first section addresses the main challenges that are still open in this field, including the important role of interfaces for achieving high-performing devices or the novel approaches employed for improving reliability issues.The second part discusses the most innovative devices which have been developed in recent years, such as devices for energy harvesting, flexible batteries, high frequency circuits, and flexible devices for tattoo electronics and bioelectronics.Finally the book reviews the most important applications moving from more standard flexible back panels to wearable and textile electronics and more futuristic applications like ingestible systems. - Reviews the fundamental properties and methods for optimizing organic electronic materials including chemical doping and techniques to address stability issues - Discusses the most promising organic electronic devices for energy, electronics, and biomedical applications - Addresses key applications of organic electronic devices in imagers, wearable electronics, bioelectronics

Download or read book Conducting Polymer Hybrids written by Vijay Kumar and published by Springer. This book was released on 2016-11-02 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive survey about conducting polymers and their hybrids with different materials. It highlights the topics pertinent to research and development in academia and in the industry. The book thus discusses the preparation and characterization of these materials, as well as materials properties and their processing. The current challenges in the field are addressed, and an outline on new and even futuristic approaches is given. “Conducting Polymer Hybrids” is concerned with a fascinating class of materials with the promise for wide-ranging applications, including energy generation and storage, supercapacitors, electronics, display technologies, sensing, environmental and biomedical applications. The book covers a large variety of systems: one-, two-, and three-dimenstional composites and hybrids, mixed at micro- and nanolevel.

Download or read book Novel Embedded Metal mesh Transparent Electrodes written by Arshad Khan and published by . This book was released on 2020 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents fabrication approaches that could be adapted for the high-throughput and low-cost manufacturing of the proposed transparent electrode. It proposes and demonstrates a new type of embedded metal-mesh transparent electrode (EMTE) that offers superior electrical, optical, and mechanical properties. The structure of the EMTE allows thick metal mesh to be used (for high conductivity) without sacrificing surface smoothness. In addition, the embedded structure improves the EMTE's mechanical stability under high bending stress, as well as its chemical stability in ambient environments. These design aspects are then shown to be suitable for larger electrode areas, narrower metal-mesh line widths, and a wide range of materials, and can easily be adapted to produce flexible and even stretchable devices. In closing, the book explores the practical applications of EMTEs in flexible bifacial dye-sensitized solar cells and transparent thin-film heaters, demonstrating their outstanding performance.

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.

Download or read book Inorganic Flexible Optoelectronics written by Zhenqiang Ma and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensively covering inorganic flexible optoelectronics and their applications This highly application-oriented book provides an overview of the vibrant research field of inorganic flexible optoelectronics ? from materials to applications ? covering bulk materials as well as nanowires, thin films, nanomembranes for application in light emitting diodes, photodetectors, phototransistors, and solar cells. Edited and written by world-leading experts in the field, Inorganic Flexible Optoelectronics: Materials and Applications begins by covering flexible inorganic light emitting diodes enabled by new materials and designs, and provides examples of their use in neuroscience research. It then looks at flexible light-emitting diodes based on inorganic semiconductor nanostructures ? from thin films to nanowires. Next, the book examines flexible photodetectors with nanomembranes and nanowires; 2-D material based photodetectors on flexible substrates; and IV group materials based solar cells and their flexible photovoltaic technologies. Following that, it presents readers with a section on thin-film III-V single junction and multijunction solar cells and demonstrates their integration onto heterogeneous substrates. Finally, the book finishes with in-depth coverage of novel materials based flexible solar cells. -A must-have book that provides an unprecedented overview of the state of the art in flexible optoelectronics -Supplies in-depth information for new and already active researchers in the field of optoelectronics -Lays down the undiluted knowledge on inorganic flexible optoelectronics ? from materials to devices -Focuses on materials and devices for high-performance applications such as light-emitting diodes, solar cells, and photodetectors Inorganic Flexible Optoelectronics: Materials and Applications appeals to materials scientists, electronics engineers, electrical engineers, inorganic chemists, and solid state physicists.

Download or read book Nanowire Electronics written by Guozhen Shen and published by Springer. This book was released on 2018-11-23 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive overview of recent advances in developing nanowires for building various kinds of electronic devices. Specifically the applications of nanowires in detectors, sensors, circuits, energy storage and conversion, etc., are reviewed in detail by the experts in this field. Growth methods of different kinds of nanowires are also covered when discussing the electronic applications. Through discussing these cutting edge researches, the future directions of nanowire electronics are identified.

Download or read book Micro nanostructured Optoelectronic Devices written by Yue-Feng Liu and published by Frontiers Media SA. This book was released on 2022-06-28 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metal Oxides for Next generation Optoelectronic Photonic and Photovoltaic Applications written by Vijay Kumar and published by Elsevier. This book was released on 2023-09-15 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxides for Next Generation Optoelectronic, Photonic and Photovoltaic Applications focuses on the optoelectronic, photonic and photovoltaic behaviors of metallic oxides and closely related phenomena, from elementary principles to the latest findings. Each chapter includes a comprehensive evaluation of the synthesis and characterization of the most relevant metal oxides nanostructures for each application. In addition, there is a focus on methods to tune the materials’ properties in order to improve devices performance. This book is suitable for researchers and practitioners in academia and industry working in the disciplines of materials science and engineering, chemistry and physics. Metal oxides are widely used in various optoelectronic devices, photonics, display devices, smart windows, sensors, optical components, energy-saving, and harvesting devices. Each application requires materials with their own specific properties. By controlling the particle size, shape, crystal structure, one can tune various properties of metal oxides viz. bandgap, absorption properties, conductivity, which alter the material for the specific application. Includes discussions of synthesis and characterization of metal oxides materials for applications in next-generation optoelectronic, photonic and photovoltaic devices Emphasizes material design strategies of metal oxide nanostructures Focuses on the optoelectronic, photonic and photovoltaic behaviors of metallic oxides and closely related phenomena, from elementary principles to the latest findings

Download or read book Counter Electrodes for Dye Sensitized and Perovskite Solar Cells written by Sining Yun and published by John Wiley & Sons. This book was released on 2018-08-29 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to one of the most important aspects for affordable and highly efficient dye-sensitized solar cells Dye-sensitized solar cells have the potential to be one of the most promising photovoltaic technologies for production of renewable and clean energy. Counter Electrodes for Dye-Sensitized and Perovskite Solar Cells offers an introduction to the various types of counter electrode catalysts for dye-sensitized solar cells and perovskite solar cells, including metal and metal compounds, carbon materials, polymers, and composites. With contributions from an international panel of experts, the book contains a discussion of the design and synthesis of the catalysts, characterization and stability of the devices, as well as calculations on properties. The contributors cover a wide range of topics including information on: carbon nanotubes electrocatalysts for I-mediated dye-sensitized solar cells; Pt-loaded composite electrocatalysts for I-mediated dye-sensitized solar cells; metal contact electrodes for perovskite solar cells; and much more. The book also includes insight into the future developments in the field. This important resource Covers the various types of counter electrode catalysts and presents design strategies, synthesis methods, theoretical calculation and stability evaluation Includes information on low-cost counter electrode catalysts and commercial applications of dye-sensitized sensitized solar cells Disscuses how electrode catalysts can be applied in a range of fields, such as solar cells, fuel cells, hydrogen production, and photocatalysis Offers contributions from leading experts in the field including Anders Hagfeldt, one of the world's leading researchers in this field Written for materials scientists, solid state chemists, electrochemists, catalytic chemists, solid state physicists, and chemical industry professionals, Counter Electrodes for Dye-Sensitized and Perovskite Solar Cells is a comprehensive and authoritative guide to dye-sensitized solar cells.

Download or read book Electrospun Nanofibers and Their Applications in Transparent Electrodes written by Tianda He and published by . This book was released on 2014 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrospinning is a versatile tool to fabricate polymer nanofibers. It is over other techniques due to the low cost, fast speed, simple procedures and ambient operation conditions. It is the most high-throughput technique to produce fibers with nanometer range diameters. The electrospun insulate polymer fibers can be converted to conductive materials by thermal annealing, doping or patterning, which provides alternative ways to fabricate transparent electrode. The commercial transparent electrodes, which have both good conductivity and considerable transparency, are made of indium-tin-oxide (ITO). It plays essential role in the many optoelectronic devices such as solar cells, displays and touch screens. However, ITO is expensive and brittle, limiting their usage in flexible electronics. In this research, conductive metal films are patterned into transparent metal nanowire networks by using electrospun fibers as a mask. Both the transmittance and sheet resistance of the metal nanowires based electrode out-perform commercial indium doped tin oxide (ITO) electrodes. The metal nanowire based transparent electrodes were fabricated on both rigid glass and flexible polyethylene terephthalate (PET) substrates. In addition to state of art performance, the transparent electrodes also exhibit outstanding toughness. This film is flexible, transparent and provides good conductivity. They can withstand repeated scotch tape peeling and various bending tests. The method for making the metal nanowire is scalable and a touch screen on flexible substrate is demonstrated. The further improvements of the transparent film are discussed.