Binary Semiconductors Thin Films Characterization for Solar Cells Applications PDF Download
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Author: Kenza Kamli
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0
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Book Description
The increasing development of technologies based on the thin films, imposed a high quality of these films. The crucial importance for all applications of thin films is related to the stability of their physical and morphological properties. Therefore, to optimize the performances of the thin films it is recommended to study carefully all their parameters in order to enhance the elaborated films. With this intention, various characterizations methods were developed and carried out to study the different qualities of thin films. In this chapter, we take an interest to the study of the characteristics of some binary semiconductors thin films elaborated by ultrasonic spray pyrolysis, and which are destined for solar cells applications. Several used characterizations techniques to the determination of the thin films properties will be given; namely: X-rays diffraction (XRD), Scanning Electron Microscopy (SEM), EDS (Energy Dispersive Spectroscopy), Hall effect and spectrophotometry will be discussed in detail.
Author: Kenza Kamli
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0
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Book Description
The increasing development of technologies based on the thin films, imposed a high quality of these films. The crucial importance for all applications of thin films is related to the stability of their physical and morphological properties. Therefore, to optimize the performances of the thin films it is recommended to study carefully all their parameters in order to enhance the elaborated films. With this intention, various characterizations methods were developed and carried out to study the different qualities of thin films. In this chapter, we take an interest to the study of the characteristics of some binary semiconductors thin films elaborated by ultrasonic spray pyrolysis, and which are destined for solar cells applications. Several used characterizations techniques to the determination of the thin films properties will be given; namely: X-rays diffraction (XRD), Scanning Electron Microscopy (SEM), EDS (Energy Dispersive Spectroscopy), Hall effect and spectrophotometry will be discussed in detail.
Author: Beddiaf Zaidi
Publisher: BoD – Books on Demand
ISBN: 1839699051
Category : Technology & Engineering
Languages : en
Pages : 114
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Book Description
Thin film photovoltaic-based solar modules produce power at a low cost per watt. They are ideal candidates for large-scale solar farms as well as building-integrated photovoltaic applications. They can generate consistent power, not only at elevated temperatures but also on cloudy, overcast days and at low sun angles.Thin film photovoltaics are second-generation solar cells produced by depositing one or more thin layers, or thin films, of photosensitive material on a suitable substrate such as glass, polymer, or metal. Thin film solar cells are based on various materials such as cadmium telluride (CdTe), copper indium gallium diselenide (CIGS), and amorphous thin film silicon (a-Si, TF-Si) are commercially used in several conventional and advanced technologies.
Author: Cliff Orori Mosiori
Publisher: GRIN Verlag
ISBN: 3656718407
Category : Science
Languages : en
Pages : 118
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Book Description
Master's Thesis from the year 2011 in the subject Physics - Applied physics, grade: A, Kenyatta University, course: Master of Science ( Physics), language: English, abstract: In this research an n-type CdxZn1-xS and p-type PbS thin films were optimised for solar cell applications employing chemical bath deposition technique. The thin films were prepared using thiourea and nitrates of cadmium, zinc and lead. Deposition of optimised CdxZn1-xS was done by CBD at 820 C and in alkaline conditions while that of PbS was done at room temperature and both films at normal atmospheric pressure utilizing aqueous conditions. This study concentrated on optimising optical and electrical characterization of the films. Optical constant suitable for photovoltaic applications were sort for and for this purpose a UV VIS IR spectrophotometer 3700 DUV was utilised while the electrical properties were investigated using a four point probe connected to a Keithley 2400 source meter interfaced with computer. The optical band gap of the as deposited CdxZn1-xS films varied from 2.47eV (x =0.6) to 2.72 eV (x =1.0), and transmittance above 79% in the VIS - NIR region for the concentration range of x = 0.6 to 1.0, that is, the band gap increased with increasing Zn concentration of the alloy and Cd06Zn0.4S sample showed the widest band gap. It was obtained that the presence of zinc increased optical band gap. The average extinction coefficients for the as deposited CdxZn1-xS samples were very low revealing that they absorb very little radiation hence a good window layer material. As measured by the four point probe connected to a Keithley 2400 source meter, electrical resistivity increased with increase in Zn in the bath in CdxZn1-xS and a resistivity range of 9.5×101 – 1.22× 102 Ω-cm was obtained. These properties are appropriate for window layers used for photovoltaic cell applications. PbS thin films had a band gap of 0.89 eV and a transmittance of below 55% appropriate for absorber layers of photovoltaic cells and a resistivity range of 6.78 × 103 to 1.26 × 104 Ω-cm. The fabricated photovoltaic cell had a short circuit current, Isc = 0.031 A, open voltage, Voc = 0.37V, efficiency, η = 0.9% and a fill factor, FF = 0.66 implying that the two materials are appropriate for photovoltaic applications especially in the VIS and IR light spectrum.
Author: RCA Laboratories
Publisher:
ISBN:
Category : Solar batteries
Languages : en
Pages : 56
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Category :
Languages : ko
Pages :
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Author: Jef Poortmans
Publisher: John Wiley & Sons
ISBN: 0470091266
Category : Science
Languages : en
Pages : 504
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Book Description
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.
Author: M. Parans Paranthaman
Publisher: Springer
ISBN: 3319203312
Category : Technology & Engineering
Languages : en
Pages : 290
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Book Description
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
Author:
Publisher:
ISBN:
Category : Photovoltaic power generation
Languages : en
Pages : 180
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Category :
Languages : en
Pages : 0
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Author: Suresh Sagadevan
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659585821
Category :
Languages : en
Pages : 92
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Book Description
The book consists of six chapters. PbS, CdTe, ZnSe, Zn-CdS and CdS thin films were grown by chemical bath deposition (CBD) technique. The crystal structure and crystallite size of the thin films were determined using X-ray diffraction (XRD). The optical properties were studied by the Ultraviolet-Visible (UV-Vis) absorption spectrum. The particle size and morphology were studied using Scanning electron microscope microscopy. The dielectric properties of thin films were studied in the frequency range of 50Hz-5MHz at different temperatures. Further, electronic properties like valence electron plasma energy, average energy gap or Penn gap, Fermi energy and electronic polarizability of the thin films were calculated.
