Elaboration, Characterization and Design of ZnS Thin Films for Optoelectronic Applications

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (17 download)

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Book Synopsis Elaboration, Characterization and Design of ZnS Thin Films for Optoelectronic Applications by : Abdelhak Jrad

Download or read book Elaboration, Characterization and Design of ZnS Thin Films for Optoelectronic Applications written by Abdelhak Jrad and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc sulfide is one of the first semiconductors discovered. It has great potential application thanks to its physicochemical properties. It is used extensively in optoelectronic, photocatalytic and gas detection applications. In particular, it is used for photovoltaic applications. In this work, the effect of doping by transition metals (manganese, cobalt and copper) on the structural, microstructural, morphological, optical, electrical and magnetic properties of zinc sulfide thin films prepared by chemical bath deposition (CBD) technique are studied by X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, infrared spectroscopy, scanning electron microscopy, UV-VIS-NIR spectrophotometry, Hall effect and SQUID. The modeling and optimization of higher efficiency Cu(In,Ga)Se2 solar cells are also investigated in this thesis for various layers thickness by using Silvaco ATLAS.

Growth, Characterization and Applications of Zinc Sulfide Thin Films by Solution-Based Processes

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ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (971 download)

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Book Synopsis Growth, Characterization and Applications of Zinc Sulfide Thin Films by Solution-Based Processes by : Dick Chiu

Download or read book Growth, Characterization and Applications of Zinc Sulfide Thin Films by Solution-Based Processes written by Dick Chiu and published by . This book was released on 2017 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc Sulfide (ZnS) thin film, with a wide band gap, has been used for many applications, such as buffer layer for CIGS solar cells, light emitting diodes and thin film electroluminescent devices. In this work, ZnS thin films were prepared using two different deposition processes. In the first method, ZnS thin films were deposited by using conventional chemical bath deposition (CBD) process. Micro-reactor assisted solution deposition (MASD) with a flow cell was used as the second method. Growth kinetics of ZnS thin films in CBD was analyzed using in-situ quartz crystal microbalance measurements, and ex-situ transmission electron microscopy (TEM) and scanning electron microscopy (SEM) measurements. The results from the TEM and SEM measurements suggest that the film growth follows a two-step process with the formation of the nuclei in the solution first, attachment to the surface, followed by aggregation of nanoparticles into half spheres on the surface of the substrate and finally half spheres connect to the neighbor half spheres, thereby forming a continuous film. The mechanism study, verified by the SEM images, shows that nucleation starts very early in the CBD process. The degree of supersaturation influences the growth rate and final surface morphology. Temperature-dependent growth rate in the linear growth region follows the Arrhenius equation with an estimated value of activation energy (Ea) to be around 36 KJ/mol. This value, which is considered low (less than 40 kJ/mol), indicates that the rate limiting step is more likely to be a physical process such as adsorption or diffusion, rather than a chemical process, which tends to have higher activation energies. In our study, the chemical bath is vigorously stirred so that the rate-limiting step is likely controlled by a physically adsorption mechanism. The continuous flow micro reactor was used to deposit ZnS thin films using various flow cells of different designs. The depositions were carried out on display glass of 1 inch wide by 3 inches long. Both analytical equations (Hagen-Poiseuille) and computational fluid dynamics were applied to determine proper height for the flow channel. COMSOL Multiphysics simulation of fluid flow along with particle tracer was carried out to find an optimum cut out radius for further study. The film thickness growth kinetics and solute concentration near the substrate surface was simulated using the COMSOL Multiphysics program with an assumption of laminar flow, transport of diluted species and a simplified first order reaction. An insert that mimics a cut out radius of 2.31 inches was fabricated using a 3D printer and installed in the flow cell to deposit ZnS thin films. ZnS thin films deposited using the flow cells with and without the 3D printed insert were investigated. The results were analyzed using plane-view and cross-sectional SEM images. The film thickness was determined by cross-sectional SEM image. The results indicated that the thickness uniformity was improved with the 3D printed insert. We found toward the end of the substrate, the ZnS thin film was not continuous due to the lower solution concentration caused by the depletion of reactants. New flow cell designs were proposed and COMSOL simulation was performed to examine the effectiveness of these flow cells. To demonstrate the utility of the ZnS thin films by solution-based processes, SnS and CuS thin films were deposited on top of the ZnS thin film to form SnS/CuS/ZnS layered precursor film then followed by selenziation at various temperatures in an attempt to produce CZTSSe absorber layers for CZTSSe thin film solar cells.

Studies and Characterization of ZnS Thin Films

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Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783330062443
Total Pages : 60 pages
Book Rating : 4.0/5 (624 download)

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Book Synopsis Studies and Characterization of ZnS Thin Films by : Arunkumar Alagesan

Download or read book Studies and Characterization of ZnS Thin Films written by Arunkumar Alagesan and published by LAP Lambert Academic Publishing. This book was released on 2017-06-19 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The II-VI compound semiconductors are of great importance due to their application in various electro-optic devices. Thin films of ZnS find many more applications in the area of opto electronic device fabrication like UV light emitting diodes, blue light emitting diodes, emissive flat screens, electroluminescent devices and antireflection coating in solar cell technology. Several methods have been used to prepare ZnS thin films. We have deposited ZnS films using chemical bath deposition method using sodium hydroxide as a complexing agent. The structural and morphological characteristics of films have been investigated by X-ray diffraction (XRD) and scanning electron microscope. XRD shows deposited film was polycrystalline nature with cubic structure. The grain size is estimated to be in the range of 35-70 nm. The crystallinity of the ZnS film was analysed by HRTEM with the help of the electron diffraction pattern. The films show good optical properties with high transmittance in the visible region and the band gap value were found 3.3 eV - 2.1 eV. ZnS films can be used as buffer layers on CdTe solar cells.

Characterization of ZnS Thin Films Grown by MOCVD

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ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (289 download)

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Book Synopsis Characterization of ZnS Thin Films Grown by MOCVD by : Jie Fang

Download or read book Characterization of ZnS Thin Films Grown by MOCVD written by Jie Fang and published by . This book was released on 1992 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

ZnO Thin Films for Optoelectronic Applications

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Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659370106
Total Pages : 220 pages
Book Rating : 4.3/5 (71 download)

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Book Synopsis ZnO Thin Films for Optoelectronic Applications by : Prasada Rao Talakonda

Download or read book ZnO Thin Films for Optoelectronic Applications written by Prasada Rao Talakonda and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) thin films have good electro-optical properties suitable for opto-electronic applications. The present study explains the deposition and characterization of n-type and p-type ZnO thin films by spray pyrolysis. The films were characterized by different methods to understand their structural, optical and electrical properties. Gallium was chosen as the impurity dopant in ZnO films to improve the electrical properties. The electrical conductivity, carrier concentration and mobility of Ga doped ZnO (GZO) films were highly improved in comparison to undoped ZnO films. The GZO films showed good optical transmittance in the visible region. The electrical and optical results suggest that the GZO films are suitable to use as a TCO in optoelectronic industries. The p-type ZnO thin films were successesfully realized using dual acceptor method. The Hall measurements and room temperature photolumiscence results were supported p-type nature of (Li, N): ZnO thin films.

Characterization of ZnS Thin Films Grown on the Basal Face of Zn Single Crystals by Reactive Diffusion

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ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (181 download)

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Book Synopsis Characterization of ZnS Thin Films Grown on the Basal Face of Zn Single Crystals by Reactive Diffusion by : Dave S. Gahunia

Download or read book Characterization of ZnS Thin Films Grown on the Basal Face of Zn Single Crystals by Reactive Diffusion written by Dave S. Gahunia and published by . This book was released on 1991 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Successive Ionic Layer Adsorption and Reaction (SILAR) Growth and Characterization of ZnS and ZnS:Mn Thin Films

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ISBN 13 : 9789529094783
Total Pages : 47 pages
Book Rating : 4.0/5 (947 download)

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Book Synopsis The Successive Ionic Layer Adsorption and Reaction (SILAR) Growth and Characterization of ZnS and ZnS:Mn Thin Films by : Seppo Lindroos

Download or read book The Successive Ionic Layer Adsorption and Reaction (SILAR) Growth and Characterization of ZnS and ZnS:Mn Thin Films written by Seppo Lindroos and published by . This book was released on 1997 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Thin Film Solar Cells

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Publisher : John Wiley & Sons
ISBN 13 : 0470091266
Total Pages : 504 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Thin Film Solar Cells by : Jef Poortmans

Download or read book Thin Film Solar Cells written by Jef Poortmans and published by John Wiley & Sons. This book was released on 2006-10-16 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin-film solar cells are either emerging or about to emerge from the research laboratory to become commercially available devices finding practical various applications. Currently no textbook outlining the basic theoretical background, methods of fabrication and applications currently exist. Thus, this book aims to present for the first time an in-depth overview of this topic covering a broad range of thin-film solar cell technologies including both organic and inorganic materials, presented in a systematic fashion, by the scientific leaders in the respective domains. It covers a broad range of related topics, from physical principles to design, fabrication, characterization, and applications of novel photovoltaic devices.

Functional Thin Films and Nanostructures for Sensors

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Publisher : Springer Science & Business Media
ISBN 13 : 0387686096
Total Pages : 224 pages
Book Rating : 4.3/5 (876 download)

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Book Synopsis Functional Thin Films and Nanostructures for Sensors by : Anis Zribi

Download or read book Functional Thin Films and Nanostructures for Sensors written by Anis Zribi and published by Springer Science & Business Media. This book was released on 2009-04-05 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses advances in functional thin films for sensors and novel concepts for future breakthroughs. The focus is on guidelines and design rules for sensor systems, interaction between functional thin films and other sensor subsystems, fundamentals behind the intrinsic functionality in sensing thin films and nanostructures, state-of-the-art technologies used to develop sensors today and concrete examples of sensor designs.

Earth-Abundant Materials for Solar Cells

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Publisher : John Wiley & Sons
ISBN 13 : 1119052785
Total Pages : 848 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Earth-Abundant Materials for Solar Cells by : Sadao Adachi

Download or read book Earth-Abundant Materials for Solar Cells written by Sadao Adachi and published by John Wiley & Sons. This book was released on 2015-10-28 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematically describes the physical and materials properties of copper-based quaternary chalcogenide semiconductor materials, enabling their potential for photovoltaic device applications. Intended for scientists and engineers, in particular, in the fields of multinary semiconductor physics and a variety of photovoltaic and optoelectronic devices.

Chemical Solution Deposition Of Semiconductor Films

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Publisher : CRC Press
ISBN 13 : 9780203909096
Total Pages : 400 pages
Book Rating : 4.9/5 (9 download)

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Book Synopsis Chemical Solution Deposition Of Semiconductor Films by : Gary Hodes

Download or read book Chemical Solution Deposition Of Semiconductor Films written by Gary Hodes and published by CRC Press. This book was released on 2002-10-08 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discussing specific depositions of a wide range of semiconductors and properties of the resulting films, Chemical Solution Deposition of Semiconductor Films examines the processes involved and explains the effect of various process parameters on final film and film deposition outcomes through the use of detailed examples. Supplying experimental res

Chemical Solution Deposition of Functional Oxide Thin Films

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Publisher : Springer Science & Business Media
ISBN 13 : 3211993118
Total Pages : 801 pages
Book Rating : 4.2/5 (119 download)

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Book Synopsis Chemical Solution Deposition of Functional Oxide Thin Films by : Theodor Schneller

Download or read book Chemical Solution Deposition of Functional Oxide Thin Films written by Theodor Schneller and published by Springer Science & Business Media. This book was released on 2014-01-24 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first text to cover all aspects of solution processed functional oxide thin-films. Chemical Solution Deposition (CSD) comprises all solution based thin- film deposition techniques, which involve chemical reactions of precursors during the formation of the oxide films, i. e. sol-gel type routes, metallo-organic decomposition routes, hybrid routes, etc. While the development of sol-gel type processes for optical coatings on glass by silicon dioxide and titanium dioxide dates from the mid-20th century, the first CSD derived electronic oxide thin films, such as lead zirconate titanate, were prepared in the 1980’s. Since then CSD has emerged as a highly flexible and cost-effective technique for the fabrication of a very wide variety of functional oxide thin films. Application areas include, for example, integrated dielectric capacitors, ferroelectric random access memories, pyroelectric infrared detectors, piezoelectric micro-electromechanical systems, antireflective coatings, optical filters, conducting-, transparent conducting-, and superconducting layers, luminescent coatings, gas sensors, thin film solid-oxide fuel cells, and photoelectrocatalytic solar cells. In the appendix detailed “cooking recipes” for selected material systems are offered.

Semiconductor Materials for Solar Photovoltaic Cells

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Publisher : Springer
ISBN 13 : 3319203312
Total Pages : 290 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Semiconductor Materials for Solar Photovoltaic Cells by : M. Parans Paranthaman

Download or read book Semiconductor Materials for Solar Photovoltaic Cells written by M. Parans Paranthaman and published by Springer. This book was released on 2015-09-16 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the current status of semiconductor materials for conversion of sunlight to electricity, and highlights advances in both basic science and manufacturing. Photovoltaic (PV) solar electric technology will be a significant contributor to world energy supplies when reliable, efficient PV power products are manufactured in large volumes at low cost. Expert chapters cover the full range of semiconductor materials for solar-to-electricity conversion, from crystalline silicon and amorphous silicon to cadmium telluride, copper indium gallium sulfide selenides, dye sensitized solar cells, organic solar cells, and environmentally friendly copper zinc tin sulfide selenides. The latest methods for synthesis and characterization of solar cell materials are described, together with techniques for measuring solar cell efficiency. Semiconductor Materials for Solar Photovoltaic Cells presents the current state of the art as well as key details about future strategies to increase the efficiency and reduce costs, with particular focus on how to reduce the gap between laboratory scale efficiency and commercial module efficiency. This book will aid materials scientists and engineers in identifying research priorities to fulfill energy needs, and will also enable researchers to understand novel semiconductor materials that are emerging in the solar market. This integrated approach also gives science and engineering students a sense of the excitement and relevance of materials science in the development of novel semiconductor materials. · Provides a comprehensive introduction to solar PV cell materials · Reviews current and future status of solar cells with respect to cost and efficiency · Covers the full range of solar cell materials, from silicon and thin films to dye sensitized and organic solar cells · Offers an in-depth account of the semiconductor material strategies and directions for further research · Features detailed tables on the world leaders in efficiency demonstrations · Edited by scientists with experience in both research and industry

Thin Film Processes

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Publisher : BoD – Books on Demand
ISBN 13 : 9535130676
Total Pages : 222 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Thin Film Processes by : Jagannathan Thirumalai

Download or read book Thin Film Processes written by Jagannathan Thirumalai and published by BoD – Books on Demand. This book was released on 2017-04-12 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Thin Film Processes - Artifacts on Surface Phenomena and Technological Facets presents topics on global advancements in theoretical and experimental facts, instrumentation and practical applications of thin-film material perspectives and its applications. The aspect of this book is associated with the thin-film physics, the methods of deposition, optimization parameters and its wide technological applications. This book is divided into three main sections: Thin Film Deposition Methods: A Synthesis Perspective; Optimization Parameters in the Thin Film Science and Application of Thin Films: A Synergistic Outlook. Collected chapters provide applicable knowledge for a wide range of readers: common men, students and researchers. It was constructed by experts in diverse fields of thin-film science and technology from over 15 research institutes across the globe.

The Materials Science of Thin Films

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Publisher : Academic Press
ISBN 13 : 9780125249904
Total Pages : 744 pages
Book Rating : 4.2/5 (499 download)

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Book Synopsis The Materials Science of Thin Films by : Milton Ohring

Download or read book The Materials Science of Thin Films written by Milton Ohring and published by Academic Press. This book was released on 1992 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepared as a textbook complete with problems after each chapter, specifically intended for classroom use in universities.

Chemically Deposited Nanocrystalline Metal Oxide Thin Films

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Publisher : Springer Nature
ISBN 13 : 3030684628
Total Pages : 926 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Chemically Deposited Nanocrystalline Metal Oxide Thin Films by : Fabian I. Ezema

Download or read book Chemically Deposited Nanocrystalline Metal Oxide Thin Films written by Fabian I. Ezema and published by Springer Nature. This book was released on 2021-06-26 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book guides beginners in the areas of thin film preparation, characterization, and device making, while providing insight into these areas for experts. As chemically deposited metal oxides are currently gaining attention in development of devices such as solar cells, supercapacitors, batteries, sensors, etc., the book illustrates how the chemical deposition route is emerging as a relatively inexpensive, simple, and convenient solution for large area deposition. The advancement in the nanostructured materials for the development of devices is fully discussed.

Semiconductor Nanowires II: Properties and Applications

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Publisher : Academic Press
ISBN 13 : 0128041447
Total Pages : 424 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Semiconductor Nanowires II: Properties and Applications by :

Download or read book Semiconductor Nanowires II: Properties and Applications written by and published by Academic Press. This book was released on 2016-01-11 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor Nanowires: Part B, and Volume 94 in the Semiconductor and Semimetals series, focuses on semiconductor nanowires. - Includes experts contributors who review the most important recent literature - Contains a broad view, including examination of semiconductor nanowires