Investigation of Advanced Back Contacts for CdTe Thin Film Solar Cells

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (126 download)

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Book Synopsis Investigation of Advanced Back Contacts for CdTe Thin Film Solar Cells by : Alireza Barati

Download or read book Investigation of Advanced Back Contacts for CdTe Thin Film Solar Cells written by Alireza Barati and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Development of Back Contacts for CdTe Thin Films Solar Cells

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Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Development of Back Contacts for CdTe Thin Films Solar Cells by : Fadhil Khalaf Dahash Alfadhili

Download or read book Development of Back Contacts for CdTe Thin Films Solar Cells written by Fadhil Khalaf Dahash Alfadhili and published by . This book was released on 2020 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin film solar cells based on polycrystalline p-type cadmium telluride (CdTe) represent one of these the most promising photovoltaic (PV) device due to high efficiency and low-cost production. Currently, CdTe solar cells provide the lowest cost electricity generation in utility-scale applications, which is a cost-competitive with the traditional power source, fossil fuel. CdTe thin film PV has attained 22.1 % of power conversion efficiency for small area scale and 18.6 % for modules scale. However, the high efficiency of CdTe devices has been achieved by increasing the photo-generated current by changing the traditional window layer (CdS) of CdTe to a wider bandgap material with better band alignment. The open-circuit voltage (VOC) remains below the theoretical limit due to a barrier at the back of the device due to the deep valence band edge of CdTe (-5.9 eV). Voc can be increased by adding a buffer layer between CdTe and the back electrode to decrease band banding and reducing carrier recombination at the back interface. In this thesis, several materials were investigated as a back-buffer layer, such as single-wall carbon nanotube (SWCNT), zinc telluride (ZnTe), tellurium (Te), and cadmium zinc telluride (CZT) to minimize the bend bending at CdTe/back-buffer layer interface. An alternative method to reduce the carrier recombination at the rear surface, the use of aluminum oxide (Al2O3) layer as a passivation layer was also demonstrated. Finally, an effective method of CdCl2 treatment for CZT thin film was investigated. This method shows that zinc (Zn) can be maintained during the heat treatment.

Study Of Cu Free Back Contacts to Thin Film CdTe Solar Cells

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (557 download)

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Book Synopsis Study Of Cu Free Back Contacts to Thin Film CdTe Solar Cells by : Vijay Viswanathan

Download or read book Study Of Cu Free Back Contacts to Thin Film CdTe Solar Cells written by Vijay Viswanathan and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The effect of etching ambient, pressure, plasma power and etch time on contact performance will be studied.

Development of CdTe Thin Film Solar Cells on Flexible Foil Substrates

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (68 download)

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Book Synopsis Development of CdTe Thin Film Solar Cells on Flexible Foil Substrates by : Deidra Ranel Hodges

Download or read book Development of CdTe Thin Film Solar Cells on Flexible Foil Substrates written by Deidra Ranel Hodges and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Cadmium telluride (CdTe) is a leading thin film photovoltaic (PV) material due to its near ideal band gap of 1.45 eV, its high optical absorption coefficient and availability of various device fabrication methods. Superstrate CdTe solar cells fabricated on glass have to-date exhibited efficiencies of 16.5%. Work on substrate devices has been limited due to difficulties associated with the formation of an ohmic back contact with CdTe. The most promising approach used to-date is based on the use of an interlayer between the CdTe and a metal electrode, an approach that is believed to yield a pseudo-ohmic contact. This research investigates the use of ZnTe and Sb2Te3 as the interlayer, in the development of efficient back contacts. Excellent adhesion and minimum stress are also required of a CdTe thin film solar cell device on a flexible stainless steel (SS) foil substrate. Foil substrate curvature, flaking, delamination and adhesion as a result of compressive strain due to the coefficient of thermal expansion (CTE) mismatch between the flexible SS foil substrate and the solar cell films have been studied. A potential problem with the use of a SS foil as the substrate is the diffusion of iron (Fe), chromium (Cr) and other elemental impurities into the layers of the solar cell device structure during high temperature processing. A diffusion barrier limiting the out diffusion of these substrate elements is being investigated in this study. Silicon nitride (Si3N4) films deposited on SS foils are being investigated as the barrier layer, to reduce or inhibit the diffusion of substrate impurities into the solar cell. Thin film CdTe solar cells have been fabricated and characterized by AFM, XRD, SEM, ASTM D3359-08 tape test, current-voltage (I-V) and spectral measurements. My individual contributions to this work include the Molybdenum (Mo) development, the adhesion studies, the silicon nitride (Si3N4) barrier studies, and EDS and SEM lines measurements and analysis of substrate out-diffused impurities. The rest of my colleagues focused on the development of CdTe, CdS, ZnTe, the CdCl2 heat treatment, and other back contact interlayer materials.

Solar Cells and Modules

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Publisher : Springer Nature
ISBN 13 : 3030464873
Total Pages : 357 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Solar Cells and Modules by : Arvind Shah

Download or read book Solar Cells and Modules written by Arvind Shah and published by Springer Nature. This book was released on 2020-07-16 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive introduction to the field of photovoltaic (PV) solar cells and modules. In thirteen chapters, it addresses a wide range of topics including the spectrum of light received by PV devices, the basic functioning of a solar cell, and the physical factors limiting the efficiency of solar cells. It places particular emphasis on crystalline silicon solar cells and modules, which constitute today more than 90 % of all modules sold worldwide. Describing in great detail both the manufacturing process and resulting module performance, the book also touches on the newest developments in this sector, such as Tunnel Oxide Passivated Contact (TOPCON) and heterojunction modules, while dedicating a major chapter to general questions of module design and fabrication. Overall, it presents the essential theoretical and practical concepts of PV solar cells and modules in an easy-to-understand manner and discusses current challenges facing the global research and development community.

Advanced Concepts in Photovoltaics

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Publisher : Royal Society of Chemistry
ISBN 13 : 1849739951
Total Pages : 631 pages
Book Rating : 4.8/5 (497 download)

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Book Synopsis Advanced Concepts in Photovoltaics by : Arthur J. Nozik

Download or read book Advanced Concepts in Photovoltaics written by Arthur J. Nozik and published by Royal Society of Chemistry. This book was released on 2014-07-10 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photovoltaic systems enable the sun’s energy to be converted directly into electricity using semiconductor solar cells. The ultimate goal of photovoltaic research and development is to reduce the cost of solar power to reach or even become lower than the cost of electricity generated from fossil and nuclear fuels. The power conversion efficiency and the cost per unit area of the phototvoltaic system are critical factors that determine the cost of photovoltaic electricity. Until recently, the power conversion efficiency of single-junction photovoltaic cells has been limited to approximately 33% - the so-called Shockley-Queisser limit. This book presents the latest developments in photovoltaics which seek to either reach or surpass the Shockley-Queisser limit, and to lower the cell cost per unit area. Progress toward this ultimate goal is presented for the three generations of photovoltaic cells: the 1st generation based on crystalline silicon semiconductors; the 2nd generation based on thin film silicon, compound semiconductors, amorphous silicon, and various mesoscopic structures; and the 3rd generation based on the unique properties of nanoscale materials, new inorganic and organic photoconversion materials, highly efficient multi-junction cells with low cost solar concentration, and novel photovoltaic processes. The extent to which photovoltaic materials and processes can meet the expectations of efficient and cost effective solar energy conversion to electricity is discussed. Written by an international team of expert contributors, and with researchers in academia, national research laboratories, and industry in mind, this book is a comprehensive guide to recent progress in photovoltaics and essential for any library or laboratory in the field.

Advanced Processing of CdTe- and CuIn[subscript 1-x]Ga[subscript x]Se2-Based Solar Cells: Final Technical Report, 26 May 1998-22 December 2001

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Publisher : DIANE Publishing
ISBN 13 : 1428917292
Total Pages : 51 pages
Book Rating : 4.4/5 (289 download)

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Book Synopsis Advanced Processing of CdTe- and CuIn[subscript 1-x]Ga[subscript x]Se2-Based Solar Cells: Final Technical Report, 26 May 1998-22 December 2001 by : Don Louis Morel

Download or read book Advanced Processing of CdTe- and CuIn[subscript 1-x]Ga[subscript x]Se2-Based Solar Cells: Final Technical Report, 26 May 1998-22 December 2001 written by Don Louis Morel and published by DIANE Publishing. This book was released on 2003 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Study of Back Contact Formation on CdTe/CdS Thin Film Solar Cells

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ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.:/5 (397 download)

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Book Synopsis Study of Back Contact Formation on CdTe/CdS Thin Film Solar Cells by : Jian Tang

Download or read book Study of Back Contact Formation on CdTe/CdS Thin Film Solar Cells written by Jian Tang and published by . This book was released on 1998 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Coatings and Thin-Film Technologies

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Publisher : BoD – Books on Demand
ISBN 13 : 1789848709
Total Pages : 288 pages
Book Rating : 4.7/5 (898 download)

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Book Synopsis Coatings and Thin-Film Technologies by : Jaime Andres Perez Taborda

Download or read book Coatings and Thin-Film Technologies written by Jaime Andres Perez Taborda and published by BoD – Books on Demand. This book was released on 2019-01-03 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of coatings and thin-film technologies is rapidly advancing to keep up with new uses for semiconductor, optical, tribological, thermoelectric, solar, security, and smart sensing applications, among others. In this sense, thin-film coatings and structures are increasingly sophisticated with more specific properties, new geometries, large areas, the use of heterogeneous materials and flexible and rigid coating substrates to produce thin-film structures with improved performance and properties in response to new challenges that the industry presents. This book aims to provide the reader with a complete overview of the current state of applications and developments in thin-film technology, discussing applications, health and safety in thin films, and presenting reviews and experimental results of recognized experts in the area of coatings and thin-film technologies.

Electrical Characterization of Thin Film CdTe Solar Cells

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Publisher :
ISBN 13 : 9781109861761
Total Pages : 320 pages
Book Rating : 4.8/5 (617 download)

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Book Synopsis Electrical Characterization of Thin Film CdTe Solar Cells by : Darshini Desai

Download or read book Electrical Characterization of Thin Film CdTe Solar Cells written by Darshini Desai and published by . This book was released on 2007 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photovoltaic device modeling results obtained using AMPS (Analysis of microelectronic and photonic structures) suggest that the dominant recombination mechanism is the SRH recombination through midgap states.

Advanced Characterization Techniques for Thin Film Solar Cells

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Publisher : John Wiley & Sons
ISBN 13 : 352769904X
Total Pages : 760 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Advanced Characterization Techniques for Thin Film Solar Cells by : Daniel Abou-Ras

Download or read book Advanced Characterization Techniques for Thin Film Solar Cells written by Daniel Abou-Ras and published by John Wiley & Sons. This book was released on 2016-07-13 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on advanced characterization methods for thin-film solar cells that have proven their relevance both for academic and corporate photovoltaic research and development. After an introduction to thin-film photovoltaics, highly experienced experts report on device and materials characterization methods such as electroluminescence analysis, capacitance spectroscopy, and various microscopy methods. In the final part of the book simulation techniques are presented which are used for ab-initio calculations of relevant semiconductors and for device simulations in 1D, 2D and 3D. Building on a proven concept, this new edition also covers thermography, transient optoelectronic methods, and absorption and photocurrent spectroscopy.

RF Sputtered Back Contacts for CdS/CdTe Thin Film Solar Cells

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ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (396 download)

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Book Synopsis RF Sputtered Back Contacts for CdS/CdTe Thin Film Solar Cells by : Vijay Viswanathan

Download or read book RF Sputtered Back Contacts for CdS/CdTe Thin Film Solar Cells written by Vijay Viswanathan and published by . This book was released on 1997 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Studies of ZnTe Back Contacts to CdS/CdTe Solar Cells

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Studies of ZnTe Back Contacts to CdS/CdTe Solar Cells by :

Download or read book Studies of ZnTe Back Contacts to CdS/CdTe Solar Cells written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Solar Cell Device Physics

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Publisher : Elsevier
ISBN 13 : 0323154638
Total Pages : 353 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis Solar Cell Device Physics by : Stephen J. Fonash

Download or read book Solar Cell Device Physics written by Stephen J. Fonash and published by Elsevier. This book was released on 2012-12-02 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar Cell Device Physics offers a balanced, in-depth qualitative and quantitative treatment of the physical principles and operating characteristics of solar cell devices. Topics covered include photovoltaic energy conversion and solar cell materials and structures, along with homojunction solar cells. Semiconductor-semiconductor heterojunction cells and surface-barrier solar cells are also discussed. This book consists of six chapters and begins by introducing the reader to the basic physical principles and materials properties that are the foundations of photovoltaic energy conversion, with emphasis on various photovoltaic devices capable of efficiently converting solar energy into usable electrical energy. The electronic and optical properties of crystalline, polycrystalline, and amorphous materials with both organic and inorganic materials are considered, together with the manner in which these properties change from one material class to another and the implications of such changes for photovoltaics. Generation, recombination, and bulk transport are also discussed. The two mechanisms of photocarrier collection in solar cells, drift and diffusion, are then compared. The remaining chapters focus on specific solar cell device classes defined in terms of the interface structure employed: homojunctions, semiconductor-semiconductor heterojunctions, and surface-barrier devices. This monograph is appropriate for use as a textbook for graduate students in engineering and the sciences and for seniors in electrical engineering and applied physics, as well as a reference book for those actively involved in solar cell research and development.

Fundamentals of Solar Cell Design

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Publisher : John Wiley & Sons
ISBN 13 : 1119724708
Total Pages : 578 pages
Book Rating : 4.1/5 (197 download)

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Book Synopsis Fundamentals of Solar Cell Design by : Inamuddin

Download or read book Fundamentals of Solar Cell Design written by Inamuddin and published by John Wiley & Sons. This book was released on 2021-08-24 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar cells are semiconductor devices that convert light photons into electricity in photovoltaic energy conversion and can help to overcome the global energy crisis. Solar cells have many applications including remote area power systems, earth-orbiting satellites, wristwatches, water pumping, photodetectors and remote radiotelephones. Solar cell technology is economically feasible for commercial-scale power generation. While commercial solar cells exhibit good performance and stability, still researchers are looking at many ways to improve the performance and cost of solar cells via modulating the fundamental properties of semiconductors. Solar cell technology is the key to a clean energy future. Solar cells directly harvest energy from the sun’s light radiation into electricity are in an ever-growing demand for future global energy production. Solar cell-based energy harvesting has attracted worldwide attention for their notable features, such as cheap renewable technology, scalable, lightweight, flexibility, versatility, no greenhouse gas emission, environment, and economy friendly and operational costs are quite low compared to other forms of power generation. Thus, solar cell technology is at the forefront of renewable energy technologies which are used in telecommunications, power plants, small devices to satellites. Aiming at large-scale implementation can be manipulated by various types used in solar cell design and exploration of new materials towards improving performance and reducing cost. Therefore, in-depth knowledge about solar cell design is fundamental for those who wish to apply this knowledge and understanding in industries and academics. This book provides a comprehensive overview on solar cells and explores the history to evolution and present scenarios of solar cell design, classification, properties, various semiconductor materials, thin films, wafer-scale, transparent solar cells, and so on. It also includes solar cells’ characterization analytical tools, theoretical modeling, practices to enhance conversion efficiencies, applications and patents.

Effects of Cu Diffusion from ZnTe

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Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Effects of Cu Diffusion from ZnTe by :

Download or read book Effects of Cu Diffusion from ZnTe written by and published by . This book was released on 2008 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the performance of CdS/CdTe thin film PV devices processed with a ZnTe:Cu/Ti contact to investigate how carrier lifetime in the CdTe layer is affected by Cu diffusion from the contact.

Development of Transparent and Conducting Back Contacts on CdS/CdTe Solar Cells for Photoelectrochemical Application

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Publisher :
ISBN 13 :
Total Pages : 65 pages
Book Rating : 4.:/5 (19 download)

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Book Synopsis Development of Transparent and Conducting Back Contacts on CdS/CdTe Solar Cells for Photoelectrochemical Application by : Upendra Avachat

Download or read book Development of Transparent and Conducting Back Contacts on CdS/CdTe Solar Cells for Photoelectrochemical Application written by Upendra Avachat and published by . This book was released on 2005 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research work focuses on developing various back contacts with good transparency in the infrared region (~750 - 1150 nm) for a CdS/CdTe solar cell. CdS/CdTe solar cells were prepared with three different configurations, Glass/SnO2:F/CdS/CdTe/ZnTe:Cu/ITO/Ni-Al (series 1), Glass/SnO2:F/CdS/CdTe/Cu2Te/ITO/Ni-Al (series 2), Glass/SnO2:F/CdS/CdTe/Br-Me etching/Cu/ITO/Ni-Al (series 3).