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Amorphous Silicon Crystalline Silicon Heterojunction Solar Cells
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Author :Wolfgang Rainer Fahrner Publisher :Springer Science & Business Media ISBN 13 :364237039X Total Pages :119 pages Book Rating :4.6/5 (423 download)
Book Synopsis Amorphous Silicon / Crystalline Silicon Heterojunction Solar Cells by : Wolfgang Rainer Fahrner
Download or read book Amorphous Silicon / Crystalline Silicon Heterojunction Solar Cells written by Wolfgang Rainer Fahrner and published by Springer Science & Business Media. This book was released on 2013-04-23 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous Silicon/Crystalline Silicon Solar Cells deals with some typical properties of heterojunction solar cells, such as their history, the properties and the challenges of the cells, some important measurement tools, some simulation programs and a brief survey of the state of the art, aiming to provide an initial framework in this field and serve as a ready reference for all those interested in the subject. This book helps to “fill in the blanks” on heterojunction solar cells. Readers will receive a comprehensive overview of the principles, structures, processing techniques and the current developmental states of the devices. Prof. Dr. Wolfgang R. Fahrner is a professor at the University of Hagen, Germany and Nanchang University, China.
Author :Wilfried G. J. H. M. van Sark Publisher :Springer Science & Business Media ISBN 13 :3642222757 Total Pages :588 pages Book Rating :4.6/5 (422 download)
Book Synopsis Physics and Technology of Amorphous-Crystalline Heterostructure Silicon Solar Cells by : Wilfried G. J. H. M. van Sark
Download or read book Physics and Technology of Amorphous-Crystalline Heterostructure Silicon Solar Cells written by Wilfried G. J. H. M. van Sark and published by Springer Science & Business Media. This book was released on 2011-11-16 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today’s solar cell multi-GW market is dominated by crystalline silicon (c-Si) wafer technology, however new cell concepts are entering the market. One very promising solar cell design to answer these needs is the silicon hetero-junction solar cell, of which the emitter and back surface field are basically produced by a low temperature growth of ultra-thin layers of amorphous silicon. In this design, amorphous silicon (a-Si:H) constitutes both „emitter“ and „base-contact/back surface field“ on both sides of a thin crystalline silicon wafer-base (c-Si) where the electrons and holes are photogenerated; at the same time, a-Si:H passivates the c-Si surface. Recently, cell efficiencies above 23% have been demonstrated for such solar cells. In this book, the editors present an overview of the state-of-the-art in physics and technology of amorphous-crystalline heterostructure silicon solar cells. The heterojunction concept is introduced, processes and resulting properties of the materials used in the cell and their heterointerfaces are discussed and characterization techniques and simulation tools are presented.
Book Synopsis Silicon Heterojunction Solar Cells by : W.R. Fahrner
Download or read book Silicon Heterojunction Solar Cells written by W.R. Fahrner and published by Trans Tech Publications Ltd. This book was released on 2006-08-15 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world of today must face up to two contradictory energy problems: on the one hand, there is the sharply growing consumer demand in countries such as China and India. On the other hand, natural resources are dwindling. Moreover, many of those countries which still possess substantial gas and oil supplies are politically unstable. As a result, renewable natural energy sources have received great attention. Among these, solar-cell technology is one of the most promising candidates. However, there still remains the problem of the manufacturing costs of such cells. Many attempts have been made to reduce the production costs of conventional solar cells (manufactured from monocrystalline silicon using diffusion methods) by instead using cheaper grades of silicon, and simpler pn-junction fabrication. That is the hero of this book; the heterojunction solar cell.
Book Synopsis Amorphous Silicon/Crystalline Silicon Heterojunction Solar Cells by : Wolfgang Rainer Fahrner
Download or read book Amorphous Silicon/Crystalline Silicon Heterojunction Solar Cells written by Wolfgang Rainer Fahrner and published by . This book was released on 2013 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics and Technology of Amorphous-Crystalline Heterostructure Silicon Solar Cells by : Wilfried G. J. H. M. van Sark
Download or read book Physics and Technology of Amorphous-Crystalline Heterostructure Silicon Solar Cells written by Wilfried G. J. H. M. van Sark and published by Springer. This book was released on 2012-02-23 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today’s solar cell multi-GW market is dominated by crystalline silicon (c-Si) wafer technology, however new cell concepts are entering the market. One very promising solar cell design to answer these needs is the silicon hetero-junction solar cell, of which the emitter and back surface field are basically produced by a low temperature growth of ultra-thin layers of amorphous silicon. In this design, amorphous silicon (a-Si:H) constitutes both „emitter“ and „base-contact/back surface field“ on both sides of a thin crystalline silicon wafer-base (c-Si) where the electrons and holes are photogenerated; at the same time, a-Si:H passivates the c-Si surface. Recently, cell efficiencies above 23% have been demonstrated for such solar cells. In this book, the editors present an overview of the state-of-the-art in physics and technology of amorphous-crystalline heterostructure silicon solar cells. The heterojunction concept is introduced, processes and resulting properties of the materials used in the cell and their heterointerfaces are discussed and characterization techniques and simulation tools are presented.
Book Synopsis High-Efficiency Crystalline Silicon Solar Cells by : Eun-Chel Cho
Download or read book High-Efficiency Crystalline Silicon Solar Cells written by Eun-Chel Cho and published by MDPI. This book was released on 2021-01-06 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is composed of 6 papers. The first paper reports a novel technique for the selective emitter formation by controlling the surface morphology of Si wafers. Selective emitter (SE) technology has attracted renewed attention in the Si solar cell industry to achieve an improved conversion efficiency of passivated-emitter rear-contact (PERC) cells. In the second paper, the temperature dependence of the parameters was compared through the PERC of the industrial-scale solar cells. As a result of their analysis, PERC cells showed different temperature dependence for the fill factor loss as temperatures rose. The third paper reports the effects of carrier selective front contact layer and defect state of hydrogenated amorphous silicon passivation layer/n-type crystalline silicon interface. The results demonstrated the effects of band offset determined by band bending at the interface of the passivation layer and carrier selective front contact layer. In addition, the nc-SiOx: H CSFC layer not only reduces parasitic absorption loss but also has a tunneling effect and field-effect passivation. The fourth paper reports excimer laser annealing of hydrogenated amorphous silicon film for TOPCon solar cell application. This paper analyzes the crystallization of a-Si:H via excimer laser annealing (ELA) and compared this process with conventional thermal annealing. The fifth paper reports the contact mechanism between Ag–Al and Si and the change in contact resistance (Rc) by varying the firing profile. Rc was measured by varying the belt speed and peak temperature of the fast-firing furnace. The sixth paper reports a silicon tandem heterojunction solar cell based on a ZnO/Cu2O subcell and a c-Si bottom subcell using electro-optical numerical modeling. The buffer layer affinity and mobility together with a low conduction band offset for the heterojunction are discussed, as well as spectral properties of the device model.
Book Synopsis Amorphous and Microcrystalline Silicon Solar Cells: Modeling, Materials and Device Technology by : Ruud E.I. Schropp
Download or read book Amorphous and Microcrystalline Silicon Solar Cells: Modeling, Materials and Device Technology written by Ruud E.I. Schropp and published by Springer. This book was released on 2016-07-18 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous silicon solar cell technology has evolved considerably since the first amorphous silicon solar cells were made at RCA Laboratories in 1974. Scien tists working in a number of laboratories worldwide have developed improved alloys based on hydrogenated amorphous silicon and microcrystalline silicon. Other scientists have developed new methods for growing these thin films while yet others have developed new photovoltaic (PV) device structures with im proved conversion efficiencies. In the last two years, several companies have constructed multi-megawatt manufacturing plants that can produce large-area, multijunction amorphous silicon PV modules. A growing number of people be lieve that thin-film photovoltaics will be integrated into buildings on a large scale in the next few decades and will be able to make a major contribution to the world's energy needs. In this book, Ruud E. I. Schropp and Miro Zeman provide an authoritative overview of the current status of thin film solar cells based on amorphous and microcrystalline silicon. They review the significant developments that have occurred during the evolution of the technology and also discuss the most im portant recent innovations in the deposition of the materials, the understanding of the physics, and the fabrication and modeling of the devices.
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.
Book Synopsis Technology and Applications of Amorphous Silicon by : Robert A. Street
Download or read book Technology and Applications of Amorphous Silicon written by Robert A. Street and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives the first systematic and complete survey of technology and application of amorphous silicon, a material with a huge potential in electronic applications. The book features contributions by world-wide leading researchers in this field.
Book Synopsis Amorphous Silicon Solar Cells by : Kiyoshi Takahashi
Download or read book Amorphous Silicon Solar Cells written by Kiyoshi Takahashi and published by John Wiley & Sons. This book was released on 1986 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heterojunction Solar Cells (a-Si/c-Si) by : Thomas Mueller
Download or read book Heterojunction Solar Cells (a-Si/c-Si) written by Thomas Mueller and published by Logos Verlag Berlin GmbH. This book was released on 2009 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main focus of the present work is related to the optimization of heterojunction solar cells. The key roles in obtaining high efficient heterojunction solar cells are mainly the plasma enhanced chemical vapor deposition of very low defect layers, and the sufficient surface passivation of all interfaces. In heterojunction solar cells, the a-Si: H/c-Si hetero-interface is of significant importance, since the hetero-interface characteristics directly affect the junction properties and thus solar cell efficiency. In this work, the deposition and film properties of various hydrogenated amorphous silicon alloys, such as a-SiC: H, a-SiO_x: H, and muc-Si: H (standard a-Si: H is used as reference), are employed. Special attention is paid to (i) the front and back surface passivation of the bulk material by high-quality wide-gap amorphous silicon suboxides (a-SiO_x: H), and (ii) the influence of wide-gap high-quality a-Si- and muc-Si-based alloys for use as emitter and back-surface-
Book Synopsis Nanostructured Solar Cells by : Narottam Das
Download or read book Nanostructured Solar Cells written by Narottam Das and published by BoD – Books on Demand. This book was released on 2017-02-22 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured solar cells are very important in renewable energy sector as well as in environmental aspects, because it is environment friendly. The nano-grating structures (such as triangular or conical shaped) have a gradual change in refractive index which acts as a multilayer antireflective coating that is leading to reduced light reflection losses over broadband ranges of wavelength and angle of incidence. There are different types of losses in solar cells that always reduce the conversion efficiency, but the light reflection loss is the most important factor that decreases the conversion efficiency of solar cells significantly. The antireflective coating is an optical coating which is applied to the surface of lenses or any optical devices to reduce the light reflection losses. This coating assists for the light trapping capturing capacity or improves the efficiency of optical devices, such as lenses or solar cells. Hence, the multilayer antireflective coatings can reduce the light reflection losses and increases the conversion efficiency of nanostructured solar cells.
Book Synopsis Thin-Film Silicon Solar Cells by : Arvind Victor Shah
Download or read book Thin-Film Silicon Solar Cells written by Arvind Victor Shah and published by CRC Press. This book was released on 2010-08-19 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photovoltaic technology has now developed to the extent that it is close to fulfilling the vision of a "solar-energy world," as devices based on this technology are becoming efficient, low-cost and durable. This book provides a comprehensive treatment of thin-film silicon, a prevalent PV material, in terms of its semiconductor nature, starting out with the physical properties, but concentrating on device applications. A special emphasis is given to amorphous silicon and microcrystalline silicon as photovoltaic materials, along with a model that allows these systems to be physically described in the simplest manner possible, thus allowing the student or scientist/engineer entering the field of thin-film electronics to master a few basic concepts that are distinct from those in the field of conventional semiconductors. The main part of the book deals with solar cells and modules by illustrating the basic functioning of these devices, along with their limitations, design optimization, testing and fabrication methods. Among the manufacturing processes discussed are plasma-assisted and hot-wire deposition, sputtering, and structuring techniques.
Book Synopsis Silicon Heterojunction Solar Cell and Crystallization of Amorphous Silicon by : Meijun Lu
Download or read book Silicon Heterojunction Solar Cell and Crystallization of Amorphous Silicon written by Meijun Lu and published by ProQuest. This book was released on 2008 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the a-Si:H is found to help to achieve high efficiency in c-Si heterojuntion solar cells, it also absorbs short wavelength (
Book Synopsis Modeling of Amorphous Silicon/crystalline Silicon Heterojunction by Commercial Simulator by : Kunal Ghosh
Download or read book Modeling of Amorphous Silicon/crystalline Silicon Heterojunction by Commercial Simulator written by Kunal Ghosh and published by ProQuest. This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous silicon/crystalline silicon (a-Si/c-Si) heterojunction solar cells offer high efficiency in a simplified and easily scalable process. Despite success in commercialization of these devices, the detailed working principles of them are poorly understood. In particular the effect of interface defects at the a-Si/c-Si heterojunction and the intervening intrinsic layer require explanation. The goal of this research is to understand the effect of interface defects and the intrinsic layer on non-linear effects in current-voltage curves of heterojunction devices by developing a computer model in SENTAURUS. Previously, computer models based in programs such as PC1D, AFORSHET and AMPS-1D have been used but suffer from drawbacks such as not including the gap states and interface modeling as well as not having the option of user-defined recombination statistics. In this work the commercial package SENTAURUS is used, providing a robust and reliable environment in which to develop the model. Key features of the model are the inclusion of dangling bond states via a defect pool model, band gap narrowing of the a-Si, region specific recombination-generation statistics and the change in capture cross section due to charging of trap states. Simulation of devices using this model has demonstrated several processes which guide for device design. Firstly, the number and nature of defects at the a-Si/c- Si interface influence device behavior strongly. More importantly, the thickness of the intrinsic layer is found to be critical. Under ideal operating conditions a p-type region is induced in the intrinsic layer leading to the p-n junction being formed in the c-Si. When the intrinsic layer thickness is increased this is no longer the case, with the p-n junction forming in the a-Si, leading to drastically reduced performance of the device. The development of the recombination models, their incorporation into SENTAURUS, the modeling results and the implications for device design allow improved heterojunction solar cell designs.
Book Synopsis High Efficiency Silicon Solar Cells by : Martin A. Green
Download or read book High Efficiency Silicon Solar Cells written by Martin A. Green and published by Trans Tech Publications Ltd. This book was released on 1987-01-01 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The early chapters comprehensively review the optical and transport properties of silicon. Light trapping is described in detail. Limits on the efficiency of silicon cells are discussed as well as material requirements necessary to approach these limits. The status of current approaches to passifying surfaces, contacts and bulk regions is reviewed. The final section of the book describes the most practical approaches to the fabrication of high-efficiency cells capable of meeting the efficiency targets for both concentrated and non-concentrated sunlight, including a discussion of design and processing approaches for non-crystalline silicon.
Download or read book Solar Energy written by Christoph Richter and published by Springer. This book was released on 2012-11-29 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gathering some 30 entries from the Encyclopedia of Sustainability Science and Technology, this book presents fundamental principles and technologies for sustainably harnessing solar energy. Covers photovoltaics, solar thermal energy, solar radiation and more.
