Characterization of W-Ti-O Thin Films for Application in Photovoltaics PDF Download
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Author: Amanda P. Christmas
Publisher:
ISBN:
Category : Indium
Languages : en
Pages :
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Author: Amanda P. Christmas
Publisher:
ISBN:
Category : Indium
Languages : en
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: Theodor Schneller
Publisher: Springer Science & Business Media
ISBN: 3211993118
Category : Technology & Engineering
Languages : en
Pages : 801
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Book Description
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.
Author:
Publisher:
ISBN:
Category :
Languages : ko
Pages :
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Author: Fatma Sarf
Publisher: BoD – Books on Demand
ISBN: 1837691355
Category : Technology & Engineering
Languages : en
Pages : 178
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Book Description
This book focuses on the growth of nanomaterials as thin films. It covers the recent development of thin films using different techniques, such as electrodeposition. It also discusses the widespread use of electrochemical and magnetic applications. This book brings together multidisciplinary chapters written by leading specialists in the field.
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: Cliff Orori Mosiori
Publisher: diplom.de
ISBN: 3954898462
Category : Technology & Engineering
Languages : en
Pages : 220
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Thin films can be used to fabricate optoelectronic devices. Technology is currently focusing on ternary thin film composition because of their structure, inter-band transitions and other optical properties that can be maximized. This book discusses in detail the optical characteristics of ternary thin films and further investigates the behavior of Iron Zinc Sulphide, Lead Silver Sulphide, Copper Silver Sulphide, Copper Zinc Sulphide and Cadmium Zinc Sulphide. Thin films are of fundamental importance in modern technology.
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: Nazmul Arefin
Publisher:
ISBN:
Category : Thin films
Languages : en
Pages : 150
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Author: Melissa Ann Kreger
Publisher:
ISBN:
Category : Light emitting diodes
Languages : en
Pages : 384
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