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Sputtered Aluminium Oxide And Amorphous Silicon For Silicon Solar Cells
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Book Synopsis Sputtered Aluminium Oxide and Amorphous Silicon for Silicon Solar Cells by : Xinyu Zhang
Download or read book Sputtered Aluminium Oxide and Amorphous Silicon for Silicon Solar Cells written by Xinyu Zhang and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-efficiency silicon solar cells have been attracting an increased interest in recent years. Surface passivation is essential for various types of high-performance solar cells, particularly when thinner silicon wafers are used to reduce the material cost. Passivating dielectric thin films have been widely studied and used in solar cells designs, these include atomic-layer deposited (ALD) aluminium oxide, plasma-enhanced chemical vapour deposited (PECVD) silicon nitride and PECVD intrinsic amorphous silicon. The aim of this thesis is to develop and optimise an alternative deposition method for surface passivating films: sputtering. Sputtering is especially attractive for industrial production, due to its high throughput, easy and safe operation and global cost-effectiveness. This thesis has focussed on optimising the reactive sputtering of aluminium oxide, using an aluminium target, and the non-reactive sputtering of amorphous silicon, using a silicon target. A key innovation has been the addition of hydrogen to the mix of gasses that form the plasma, which permits to incorporate hydrogen into the films, leading to a significantly improved surface passivation quality compared to non-hydrogenated films. We have achieved the best surface passivation results by sputtered aluminium oxide to date, with an effective surface recombination velocity of 1 cm/s on 1.5 ohm-cm n-type silicon. This result is similar to the SRV of 0.9 cm/s measured on aluminium oxide films deposited by PA-ALD on the same substrates. Good passivation was also achieved on p-type silicon. The investigations into the reactive sputtering process have shown that the film properties are closely related to the oxidation level of the aluminium target, which can be controlled by adjusting process parameters. It has also been found that the presence of hydrogen in the plasma is beneficial for establishing the optimum conditions of the deposition; not only does the surface passivation quality improve, but the reactive sputtering process becomes easier to control as well.We have also shown - for the first time - that intrinsic amorphous silicon (a-Si:H) films by sputtering deposition are capable of providing an excellent passivation of crystalline silicon surfaces. A SRV of 1.5 cm/s on 1.5 ohm-cm n-type silicon and SRV of 9 cm/s on 1 ohm-cm p-type silicon have been achieved, which are comparable to the commonly used PECVD deposited a-Si:H films. After investigating the film properties using Fourier Transform Infrared Spectroscopy (FTIR), we observe that our sputtered a-Si:H films have a characteristic signature in terms of chemical bonding configurations, where several types of silicon-hydrogen bonds exist. From those measurements we have estimated that there is approximately a 4% hydrogen concentration in the films, sufficient to achieve excellent surface passivation. Finally, the thesis also presents initial attempts at developing doped amorphous silicon films, which could enable the development of an all-sputtered silicon heterojunction solar cell technology. Lightly doped a-Si:H films were deposited using a 1% boron doped silicon target and a 0.01% phosphorus doped silicon target. We have found an appropriate way to avoid surface passivation degradation caused by the doped layer deposition onto an intrinsic a-Si:H layer.
Book Synopsis Amorphous and Microcrystalline Silicon Applied in Very Thin Tandem Solar Cells by : Sandra Schicho
Download or read book Amorphous and Microcrystalline Silicon Applied in Very Thin Tandem Solar Cells written by Sandra Schicho and published by Forschungszentrum Jülich. This book was released on 2011 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Beam Treatment of Functional Layers in Thin-film Silicon Solar Cells by : Wendi Zhang
Download or read book Ion Beam Treatment of Functional Layers in Thin-film Silicon Solar Cells written by Wendi Zhang and published by Forschungszentrum Jülich. This book was released on 2013 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Si Silicon written by Eberhard F. Krimmel and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first of three Gmelin Handbook volumes in the silicon se ries that will cover silicon nitride, a normaUy solid material with the idealized formula Si N . This volume, 3 4 "Silicon" Supplement Volume B Sc, is devoted to applications of silicon nitride in microelec tronics and solar ceUs. The compendium is the product of a critical selection among more than 17600 publications on silicon nitride issued up to January 1990. Out of a total of 5900 publications dealing with the fabrication and use of microelectronic devices (including 2400 Japanese patent applications), about 4000 papers have been selected for this volume. The current volume is grouped into three parts. Chapters 2 to 8 deal with general, non specific microelectronic applications of silicon nitride, Chapters 9 to 31 cover applications of silicon nitride in specific devices and device components, and Chapter 32 is devoted exclusively to applications in solar ceUs, including information on our general understanding of the role of silicon nitride in photovoltaic devices. Experimental results on the preparation of silicon nitride layers for application in unspeci fied devices are in Chapter 2. Whenever the preparation is in connection with specific devices, the information is presented in the respective chapters. The general preparation of silicon nitride layers is not covered in this volume, but will appear in "Silicon" Supplement Volume B 5a. See also the Introductory Remarks, Chapter 1, p. 1.
Download or read book Solar Energy Update written by and published by . This book was released on 1984 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research Perspectives on Functional Micro- and Nanoscale Coatings by : Zuzuarregui, Ana
Download or read book Research Perspectives on Functional Micro- and Nanoscale Coatings written by Zuzuarregui, Ana and published by IGI Global. This book was released on 2016-04-11 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Just as chemistry is a part of our daily lives, functional coatings can be found in almost every object, gadget or device you can see or touch. However, in the last 20 years the advances made in the preparation of different functional coatings with diverse compositions have allowed the development of nanoscale coatings that are more cost-effective and environmentally conscious than traditional coatings. Research Perspectives on Functional Micro- and Nanoscale Coatings highlights critical research on preparation methods, modification, organization, and utilization of functional coatings in micro, nano, and biotechnology. Emphasizing emerging developments and global research perspectives, this publication is a pivotal resource for engineers, researchers, and graduate-level students interested in learning about emerging developments in functional coatings and nanotechnology.
Book Synopsis Clean Electricity From Photovoltaics (2nd Edition) by : Mary D Archer
Download or read book Clean Electricity From Photovoltaics (2nd Edition) written by Mary D Archer and published by World Scientific. This book was released on 2014-10-17 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Clean Electricity from Photovoltaics, first published in 2001, provides an updated account of the underlying science, technology and market prospects for photovoltaics. All areas have advanced considerably in the decade since the first edition was published, which include: multi-crystalline silicon cell efficiencies having made impressive advances, thin-film CdTe cells having established a decisive market presence, and organic photovoltaics holding out the prospect of economical large-scale power production.
Book Synopsis Surface Passivation of Industrial Crystalline Silicon Solar Cells by : Joachim John
Download or read book Surface Passivation of Industrial Crystalline Silicon Solar Cells written by Joachim John and published by Institution of Engineering and Technology. This book was released on 2018-11-15 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface passivation of silicon solar cells describes a technology for preventing electrons and holes to recombine prematurely with one another on the wafer surface. It increases the cell's energy conversion efficiencies and thus reduces the cost per kWh generated by a PV system.
Book Synopsis Manufacturing and Engineering Technology (ICMET 2014) by : Ai Sheng
Download or read book Manufacturing and Engineering Technology (ICMET 2014) written by Ai Sheng and published by CRC Press. This book was released on 2014-11-24 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manufacturing and Engineering Technology brings together around 200 peer-reviewed papers presented at the 2014 International Conference on Manufacturing and Engineering Technology, held in San-ya, China, October 17-19, 2014. The main objective of these proceedings is to take the Manufacturing and Engineering Technology discussion a step further. Contributions cover Manufacture, Mechanical, Materials Science, Industrial Engineering, Control, Information and Computer Engineering. Furthermore, these proceedings provide a platform for researchers, engineers, academics as well as industrial professionals from all over the world to present their research results and development activities in Manufacturing Science and Engineering Technology.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thin-Film Silicon Solar Cells by : Arvind Shah
Download or read book Thin-Film Silicon Solar Cells written by Arvind Shah and published by EPFL Press. This book was released on 2010-08-19 with total page 472 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.
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 Microscopy of Semiconducting Materials 2003 by : A.G Cullis
Download or read book Microscopy of Semiconducting Materials 2003 written by A.G Cullis and published by CRC Press. This book was released on 2004-04-20 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern electronic devices rely on ever-greater miniaturization of components, and semiconductor processing is approaching the domain of nanotechnology. Studies of devices in this regime can only be carried out with the most advanced forms of microscopy. Accordingly, Microscopy of Semiconducting Materials focuses on international developments in semiconductor studies carried out by all forms of microscopy. It provides an overview of the latest instrumentation, analysis techniques, and state-of-the-art advances in semiconducting materials science for solid state physicists, chemists, and material scientists.
Book Synopsis Building-Integrated Photovoltaics by : Nuria Martín Chivelet
Download or read book Building-Integrated Photovoltaics written by Nuria Martín Chivelet and published by Taylor & Francis. This book was released on 2024-09-30 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building-integrated photovoltaics (BIPV) is an innovative technology offering a variety of building envelope solutions, materials, and colours for virtually any building surface. These BIPV products generate on-site renewable electricity, turning buildings from energy consumers to producers. BIPV is expected to play an indispensable role in the transition towards decarbonisation and energy resilience of cities, effectively reducing energy consumption and greenhouse gas emissions. Lack of knowledge and guidance on designing BIPV systems has hindered this technology's widespread adoption and creative applications. As a remedy, this guidebook presents best practices and decision-making processes for efficient and resilient architecture. Featuring more than 50 annotated reference drawings—roofs, solar shadings, rainscreen façades, curtain walls and double skin façades—and 24 international BIPV case studies, the guidebook provides building professionals with the technical knowledge and inspiration to implement BIPV technology in the built environment.
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.
Book Synopsis Planning and Installing Photovoltaic Systems by : Deutsche Gesellschaft für Sonnenenergie
Download or read book Planning and Installing Photovoltaic Systems written by Deutsche Gesellschaft für Sonnenenergie and published by Earthscan. This book was released on 2008 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth in photovoltaic (PV) manufacturing worldwide continues to increase. In parallel, appropriate standards and certification schemes are being developed. During this period, clear guidance is crucial for integrating this technology into working practices of professionals in the building sector. This bestselling guide has become the essential tool for any installer, engineer and architect, offering guidance, and detailing every subject necessary for successful project implementation, from the technical design to the legal and market issues of PV installation. Beginning with resource assessment and an outline of the core components, this guide comprehensively covers system design, economic analysis, installation, operation and maintenance of PV systems. The book includes a free CD-ROM which contains essential software and additional material. The second edition has been fully updated to reflect the state-of-the-art in technology and concepts and includes: a new chapters on marketing and the history of PV; new information on the photovoltaic market; new material on lightning protection; a new section on building integrated systems; and new graphics, data, photos and software.
Book Synopsis Optical Materials Technology for Energy Efficiency and Solar Energy Conversion by :
Download or read book Optical Materials Technology for Energy Efficiency and Solar Energy Conversion written by and published by . This book was released on 1986 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
