Download or read book Synthesis and Characterization of Inorganic organic Hybrid Semiconductor Materials for Energy Applications written by Mojgan Roushan and published by . This book was released on 2012 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past few years, it has been shown that inorganic-organic hybrid semiconductors are promising candidates for optoelectronics and clean energy applications. These materials have the advantage of combining the excellent electrical, optical, thermal and transport properties of inorganic components with the flexibility, processability and structural diversity of the organic components. A representative of such materials is the inorganic-organic hybrids based on II-VI semiconductors. We have developed a unique class of II-VI based hybrids composed of alternating layers of double atomic slabs of Zn2S2 and organic amine molecules. The Zn2S2 based double-layer hybrids emit bright white light and their internal quantum efficiencies have reached ~33-35%, very close to the performance level of the (YAG):Ce3+ yellow phosphors presently dominating the white light emitting diodes (WLED) market. We have demonstrated that their band-gap and photoluminescence properties, quantum yield and color quality can be systematically tuned by varying the doping level and composition of inorganic and organic components. Therefore, these white-light emitting hybrid semiconductors represent a new type of single-phased phosphors made of semiconductor bulk materials with great promise for use in WLEDs which are of intense interest for general illuminations. Furthermore, we have successfully synthesized a series of new hybrid materials containing one-dimensional chains or two-dimensional layers of V-VI motifs with organic spacers between the channels or the layers. Inserting organic amines in these crystal lattices reduces the thermal conductivity without any significant effect on the electrical conductivity, and thus, it may give rise to an increase in the figure of merit, a parameter that characterizes the effectiveness of thermoelectric devices. The ability to tune the optical, electrical, and thermal properties, coupled with their high fluorescence quantum yield, solution processability, low-temperature and cost-effective one-pot synthesis, precisely controllable stoichiometry and high yield, not only make these hybrid materials promising candidates for use in WLEDs, but also highly versatile semiconductors for a range of applications such as optoelectronics, energy generation, and conversion devices.
Download or read book Hybrid Materials written by Guido Kickelbick and published by John Wiley & Sons. This book was released on 2007-02-27 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid materials have currently a great impact on numerous future developments including nanotechnology. This book presents an overview about the different types of materials, clearly structured into synthesis, characterization and applications. A perfect starting point for everyone interested in the field, but also for the specialist as a source of high quality information.
Download or read book Solution Processable Components for Organic Electronic Devices written by Beata Luszczynska and published by John Wiley & Sons. This book was released on 2019-09-16 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides first-hand insights into advanced fabrication techniques for solution processable organic electronics materials and devices The field of printable organic electronics has emerged as a technology which plays a major role in materials science research and development. Printable organic electronics soon compete with, and for specific applications can even outpace, conventional semiconductor devices in terms of performance, cost, and versatility. Printing techniques allow for large-scale fabrication of organic electronic components and functional devices for use as wearable electronics, health-care sensors, Internet of Things, monitoring of environment pollution and many others, yet-to-be-conceived applications. The first part of Solution-Processable Components for Organic Electronic Devices covers the synthesis of: soluble conjugated polymers; solution-processable nanoparticles of inorganic semiconductors; high-k nanoparticles by means of controlled radical polymerization; advanced blending techniques yielding novel materials with extraordinary properties. The book also discusses photogeneration of charge carriers in nanostructured bulk heterojunctions and charge carrier transport in multicomponent materials such as composites and nanocomposites as well as photovoltaic devices modelling. The second part of the book is devoted to organic electronic devices, such as field effect transistors, light emitting diodes, photovoltaics, photodiodes and electronic memory devices which can be produced by solution-based methods, including printing and roll-to-roll manufacturing. The book provides in-depth knowledge for experienced researchers and for those entering the field. It comprises 12 chapters focused on: ? novel organic electronics components synthesis and solution-based processing techniques ? advanced analysis of mechanisms governing charge carrier generation and transport in organic semiconductors and devices ? fabrication techniques and characterization methods of organic electronic devices Providing coverage of the state of the art of organic electronics, Solution-Processable Components for Organic Electronic Devices is an excellent book for materials scientists, applied physicists, engineering scientists, and those working in the electronics industry.
Download or read book Hybrid Organic Inorganic Perovskites Physical Properties And Applications In 4 Volumes written by and published by World Scientific. This book was released on 2022-01-07 with total page 867 pages. Available in PDF, EPUB and Kindle. Book excerpt: This four-volume handbook gives a state-of-the-art overview of hybrid organic inorganic perovskites, both two dimensional (2D) and three dimensional (3D), from synthesis and characterization and simulation to optoelectronic devices (such as solar cells and light emitting diodes), spintronics devices and catalysis application. The editors, coming from academia and national laboratory, are known for their didactic skills as well as their technical expertise. Coordinating the efforts of 30 expert authors in 21 chapters, they construct the story of hybrid perovskite structural and optical properties, electronic and spintronic response, laser action, and catalysis from varied viewpoints: materials science, chemical engineering, and energy engineering. The four volumes are arranged according to the focus material properties. Volume 1 is focused on the material physical properties including structure, deposition characteristic and the structure of the electronic bands and excitons of these compounds. Volume 2 covers the hybrid perovskite optical properties including the ultrafast optical response, photoluminescence and laser action. Volume 3 contains the spin response of these compounds including application such as spin valves, photogalvanic effect, and magnetic response of light emitting diodes and solar cell devices. Finally, and highly relevant to tomorrow's energy challenges, volume 4 is focused on the physics and device properties of the most relevant applications of the hybrid perovskites, namely photovoltaic solar cells. The text contains many high-quality colorful illustrations and examples, as well as thousands of up-to-date references to peer-reviewed articles, reports and websites for further reading. This comprehensive and well-written handbook is a must-have reference for universities, research groups and companies working with the hybrid organic inorganic perovskites.
Download or read book Synthesis Characterization and Film Fabrication of Inorganic and Hybrid Semiconductor Materials for Optoelectonic Applications written by Wooseok Ki and published by . This book was released on 2008 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have developed and studied selected properties of a novel type of inorganic-organic hybrid semiconductor materials in order to enhance the functionality over their parent structures. Since inorganic organic hybrid semiconductor materials are composed of both inorganic and organic segments, one may expect them to have the advantage of combining the excellent electrical, optical, thermal and transport properties from the inorganic component with the flexibility, processability and structural diversity from the organic component. As a continuing effort, we have synthesized, modified, and characterized a number of selected structures with potential for solid state lighting applications. For example, we have developed the first inorganic organic semiconductor bulk material, double layered 2D-Cd2Q2(ba)(Q=S, Se), capable of producing direct white light. This type of materials could be promising for use as a single-material white-light-emitting source in white LEDs. Luminescence properties of these hybrid semiconductors can be tuned systematically by changing their composition and doping level. In addition, a thin pellet of one of our hybrid semiconductor materials without any modifications showed low electrical conductivity. Significant improvement may be anticipated with modifications. Solution processed deposition techniques provide great opportunities for optical and optoelectronic devices, such as displays, solid state lighting, and solar cells, because it enables to fabricate flexible devices with low-cost and large area fabrications. Most semiconductors show very low solubility in organic solvents, thus limiting the opportunities to prepare thin films using soluble precursors. In this study, we have developed a simple, efficient, and low-cost solution-processed deposition route to fabricate metal chalcogenide semiconductor thin films by using soluble precursors via a spin-coating technique. Surface morphology was directly influenced by the choice of organic solvents as well as the spin-coating sequences, thus affecting the electrical transport of the films. In the case of hybrid semiconductors, a conducting polymer was employed to help forming more uniform composite films.
Download or read book Energy Level Control at Hybrid Inorganic Organic Semiconductor Interfaces written by Raphael Schlesinger and published by Springer. This book was released on 2016-11-21 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work investigates the energy-level alignment of hybrid inorganic/organic systems (HIOS) comprising ZnO as the major inorganic semiconductor. In addition to offering essential insights, the thesis demonstrates HIOS energy-level alignment tuning within an unprecedented energy range. (Sub)monolayers of organic molecular donors and acceptors are introduced as an interlayer to modify HIOS interface-energy levels. By studying numerous HIOS with varying properties, the author derives generally valid systematic insights into the fundamental processes at work. In addition to molecular pinning levels, he identifies adsorption-induced band bending and gap-state density of states as playing a crucial role in the interlayer-modified energy-level alignment, thus laying the foundation for rationally controlling HIOS interface electronic properties. The thesis also presents quantitative descriptions of many aspects of the processes, opening the door for innovative HIOS interfaces and for future applications of ZnO in electronic devices.
Download or read book Hybrid Organic Inorganic Perovskites written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This four-volume handbook gives a state-of-the-art overview of hybrid organic inorganic perovskites, both two dimensional (2D) and three dimensional (3D), from synthesis and characterization and simulation to optoelectronic devices (such as solar cells and light emitting diodes), spintronics devices and catalysis application. The editors, coming from academia and national laboratory, are known for their didactic skills as well as their technical expertise. Coordinating the efforts of 30 expert authors in 21 chapters, they construct the story of hybrid perovskite structural and optical properties, electronic and spintronic response, laser action, and catalysis from varied viewpoints: materials science, chemical engineering, and energy engineering. The four volumes are arranged according to the focus material properties. Volume 1 is focused on the material physical properties including structure, deposition characteristic and the structure of the electronic bands and excitons of these compounds. Volume 2 covers the hybrid perovskite optical properties including the ultrafast optical response, photoluminescence and laser action. Volume 3 contains the spin response of these compounds including application such as spin valves, photogalvanic effect, and magnetic response of light emitting diodes and solar cell devices. Finally, and highly relevant to tomorrow's energy challenges, volume 4 is focused on the physics and device properties of the most relevant applications of the hybrid perovskites, namely photovoltaic solar cells. The text contains many high-quality colorful illustrations and examples, as well as thousands of up-to-date references to peer-reviewed articles, reports and websites for further reading. This comprehensive and well-written handbook is a must-have reference for universities, research groups and companies working with the hybrid organic inorganic perovskites
Download or read book Comprehensive Guide on Organic and Inorganic Solar Cells written by Md. Akhtaruzzaman and published by Academic Press. This book was released on 2021-11-18 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Guide on Organic and Inorganic Solar Cells: Fundamental Concepts to Fabrication Methods is a one-stop, authoritative resource on all types of inorganic, organic and hybrid solar cells, including their theoretical background and the practical knowledge required for fabrication. With chapters rigorously dedicated to a particular type of solar cell, each subchapter takes a detailed look at synthesis recipes, deposition techniques, materials properties and their influence on solar cell performance, including advanced characterization methods with materials selection and experimental techniques. By addressing the evolution of solar cell technologies, second generation thin-film photovoltaics, organic solar cells, and finally, the latest hybrid organic-inorganic approaches, this book benefits students and researchers in solar cell technology to understand the similarities, differences, benefits and challenges of each device. Introduces the basic concepts of different photovoltaic cells to audiences from a wide variety of academic backgrounds Consists of working principles of a particular category of solar technology followed by dissection of every component within the architecture Crucial experimental procedures for the fabrication of solar cell devices are introduced, aiding picture practical application of the technology
Download or read book Hybrid Organic Inorganic Perovskites written by and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybrid Organic Inorganic Perovskites written by Li Wei and published by John Wiley & Sons. This book was released on 2020-10-19 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid organic-inorganic perovskites (HOIPs) have attracted substantial interest due to their chemical variability, structural diversity and favorable physical properties the past decade. This materials class encompasses other important families such as formates, azides, dicyanamides, cyanides and dicyanometallates. The book summarizes the chemical variability and structural diversity of all known hybrid organic-inorganic perovskites subclasses including halides, azides, formates, dicyanamides, cyanides and dicyanometallates. It also presents a comprehensive account of their intriguing physical properties, including photovoltaic, optoelectronic, dielectric, magnetic, ferroelectric, ferroelastic and multiferroic properties. Moreover, the current challenges and future opportunities in this exciting field are also been discussed. This timely book shows the readers a complete landscape of hybrid organic-inorganic pervoskites and associated multifuctionalities.
Download or read book Synthesis and Characterization of New Organic Inorganic and Organometallic Tetrathiafulvalenes and CdSe Hybrid Materials written by John A. Belot and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Synthesis of Inorganic Semiconductor Nanocrystalline Materials for the Purpose of Creating Hybrid Organic inorganic Light emitting Devices written by Jonathan Stephen Steckel and published by . This book was released on 2006 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) Once efficient and color saturated electroluminescence at the visible spectrum's extremes had been realized it was a natural extension to begin exploring the potential of QD-LED devices to satisfy the technological requirements of flat panel displays and imaging applications. This led to the synthesis of a new green-emitting core-shell NC material to meet the specific color needs for flat panel display applications. At the same time we developed a new QD-LED device fabrication method to allow the patterning of the NC monolayer in our devices. Micro-contact printing the NC monolayer instead of using phase separation provided efficient and highly color saturated QD--LEDs in the red, green, and blue, and allowed us to pattern these monolayers towards the development of pixelated QD-LEDs such as needed for flat panel display applications. Along the way, the synthesis of colloidal NCs was studied to allow for more control in synthesizing higher quality materials in the future. The simple synthesis of PbSe NCs was used as a model system to begin to understand the mechanism of how the molecular precursors are reduced in solution to produce solid crystalline material in the presence of phosphorous containing molecules.
Download or read book Organic Electronics From Synthesis To Applications written by John George Hardy and published by Frontiers Media SA. This book was released on 2020-02-03 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic electronics is one of the most exciting emerging areas of materials science. It is a highly interdisciplinary research area involving scientists and engineers who develop organic molecules with interesting properties for a variety of applications in technical industries (e.g. circuitry, energy harvesting/storage, etc.) and medical applications (e.g. bioelectronics for sensors, tissue scaffolds for tissue engineering, etc.). This Research Topic collects articles that report advances in chemistry (e.g. design and synthesis of molecules with various molecular weights and structures); physical chemistry and chemical physics, and computational/theoretical research (e.g. to push the boundaries of our understanding); chemical engineering (e.g. design, prototyping and manufacturing devices); materials scientists and technologists to explore different markets for the technologies employing such materials, the organic bioelectronics field and green/sustainable electronics.
Download or read book Hybrid Phosphor Materials written by Kanchan Upadhyay and published by Springer Nature. This book was released on 2022-01-12 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports the basics of hybrid phosphor materials, their synthesis routes and their special properties and characterization techniques. It gives the reader information about the natural origins and development of hybrid materials, which are developed by combining inorganic and organic species in one material interface-determined materials. The book provides a general classification of hybrid materials, wherein inorganic materials modified by organic moieties are distinguished from organic materials or matrices modified by inorganic constituents. It gives a focus to the functionalization of organic materials by inorganic additives. The application areas covered include optoelectronic field, sensor applications, biological and environmental applications.
Download or read book Developing Functional Inorganic organic Hybrid Materials Based on I VII Semiconductors for Energy related Applications written by Wei Liu and published by . This book was released on 2017 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Technological Processing of Hybrid Organic inorganic Materials for Photonic Applications written by Pélagie Declerck and published by . This book was released on 2011 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Co assembly of Nanostructured Hybrid Materials for Energy Applications written by Kwan Wee Tan and published by . This book was released on 2014 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-assembly is employed in nature to build multi-dimensional hierarchical materials and represents a viable synthetic approach to construct next-generation functional materials for a large number of applications. This dissertation describes the design, synthesis and characterization of multifunctional nanostructured hybrid materials on multiple length scales by co-assembly of organic and organic/inorganic components. These materials are promising for a number of applications, and in particular for energy conversion devices. In the first part, organic-inorganic co-assembly is coupled with conventional heating (102-105 s) to generate hybrid materials for solid-state hybrid solar cells. A polyisoprene-block-polystyrene-block-polyethylene oxide (PI-b-PS-b-PEO) triblock terpolymer was employed to structure-direct alumina sol to form mesoporous block copolymer (BCP) directed alumina superstructures. In situ grazing incidence wideangle X-ray scattering and scanning electron microscopy were utilized to probe the structural evolution of methylammonium lead trihalide perovskite on mesoporous BCPdirected alumina superstructures during thermal annealing. A crystalline precursor structure not previously described was discovered to be highly crucial in enhancing perovskite film morphology and coverage, leading to better performing hybrid perovskite solar cells. Time/temperature control in thermal annealing enabled tuning the macroscopic perovskite film morphology and the crystal texture simultaneously. Extending the concept of time/temperature control in structure formation, the second part of the dissertation focuses on directed self-assembly using transient heating (10-8-10-3 s) to generate porous crystalline semiconductor and organic nanostructures. In a first example, a 308 nm pulsed XeCl excimer laser was used to induce transient melting of amorphous silicon in colloidal self-assembly-directed silica templates, which subsequently solidified into crystalline silicon nanostructures with hexagonal nonclose-packed symmetry. Subsequently, by harnessing the thermal stability enhancement of organic polymers under transient heating, direct laser writing of porous organic structures is discussed by combining block copolymer-resol co-assembly with a 10.6 [MICRO SIGN]m continuous wave CO2 laser-induced transient heating. Organic-organic hybrid thin films of PI-b-PS-b-PEO mixed with resorcinol-formaldehyde resol oligomers were heated by the CO2 laser on sub-millisecond time scales, inducing PI-b-PS-b-PEO decomposition and resol thermopolymerization, to form hierarchical porous resin polymer structures with 3D connectivity, high surface areas and exceptional chemical, mechanical and thermal properties. The porous resin structures are highly suitable for a number of potential applications, e.g., microfluidic reactors, BCP organic templating to generate crystalline silicon network nanostructures, and energy conversion and storage.
