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Author : RCA Laboratories
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.F/5 ( download)
Download or read book Epitaxial silicon growth for solar cells written by RCA Laboratories and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : RCA Laboratories
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (34 download)
Download or read book Epitaxial Silicon Growth for Solar Cells written by RCA Laboratories and published by . This book was released on 1978 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epitaxial Silicon Growth for Solar Cells. Quarterly Report written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to develop and apply epitaxial growth techniques to the fabrication of efficient solar cells on low-cost forms of silicon. Progress is reported. The efficiency of baseline epitaxial solar-cell structures of about 1 mil thickness grown on single-crystal substrates and processed with diffused junctions has been reproducibly established at approximately 13% (AM-1). Experiments were conducted in the growth of the entire cell structure including the junction layer. For baseline cells fabricated on these layers, efficiencies of approximately 10% have been obtained. These structures were grown with junction depths of 0.8 to 1.0 .mu.m which resulted in sort-circuit current densities of approximately 24 mA/cm. Techniques for the reproducible growth of thinner surface layers are being pursued, in order to increase the short-wavelength response of these structures. Epitaxial techniques were applied in the growth of diagnostic layers and solar-cell structures on two potentially, low-cost, polycrystalline silicon substrates, namely Wacker (SILSO) and a Refined Metallurgical Grade (RMS) silicon. X-ray topographic studies have shown improved crystallographic quality in the epitaxial layers grown on both substrate forms. The best solar cells were fabricated on the RMS substrates where an AM-1 efficiency of 10.6% was obtained with a 16-.mu.m thick epitaxial layer. Epitaxial structures on the Wacker substrates yielded efficiencies in the 5.6 to 9.5% range.
Author : R. V. D'Aiello
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)
Download or read book Epitaxial Silicon Growth for Solar Cells written by R. V. D'Aiello and published by . This book was released on 1979 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : RCA Laboratories
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Epitaxial Silicon Growth for Solar Cells written by RCA Laboratories and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epitaxial Silicon Growth for Solar Cells. Quarterly Report written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The work performed during the first quarter included the development of epitaxial baseline solar cell structures grown on conventional single crystal substrates and initial studies of epitaxial growth and the fabrication of solar cells on one type of polycrystalline substrate (Wacker SILSO). Details of the growth and fabrication procedures for the baseline solar cells are given along with measured cell parameters. The results show that solar cells fabricated on epitaxial layers of about one mil thickness can produce AM-1 efficiency of 12%. Reproducibility of these results was established and the direction to be taken for higher efficiency is identified. Growth studies on polycrystalline substrates were started and x-ray topographic studies of the epitaxial layers showed encouraging results in that a substantially lower defect density was noted in the grown layer. Initial results on epitaxial solar cells fabricated on polycrystalline substrates are discussed along with some limitations associated with the use of this material.
Author : V. Alexander Stefan, Editor
Publisher : Stefan University Press
ISBN 13 : 9781889545394
Total Pages : 282 pages
Book Rating : 4.5/5 (453 download)
Download or read book Crystal and Epitaxial Growth written by V. Alexander Stefan, Editor and published by Stefan University Press. This book was released on 2002 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epitaxial Silicon Growth for Solar Cells. Final Report written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this contract were: (1) to determine the feasibility of silicon epitaxial growth on low-cost silicon substrates for the development of silicon sheet capable of producing low-cost, high efficiency solar cells; (2) to achieve a goal of 12% (AM-0) efficient solar cells fabricated on thin epitaxial layers (
Download or read book Epitaxial Silicon Growth for Solar Cells. Quarterly Report No. 3, April 1--June 30, 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The epitaxial growth of thin solar-cell structures was extended to include another potentially low-cost form of silicon: upgraded metallurgical grade silicon obtained from Dow Corning. An AM-1 efficiency of 12.4% was achieved with a cell structure having only 14 .mu.m of silicon grown on the Dow Corning. The best efficiency obtained was 13% on a 50-.mu.m thick structure. It was found that titanium (2 x 10/sup 14/ A/cm/sup -3/ level) intentionally incorporated into the substrates primarily causes a reduction in the short-circuit current for both epitaxial and bulk cells. However, the epitaxial cells were much less effected by the presence of titanium and efficiencies as high as 11.7% were obtained while the efficiency for bulk cells was approx. 8%. Preliminary experiments in a laboratory model of RCA's advanced rotary disc reactor have produced solar cells with 10 to 12% efficiency. These cells were grown on single-crystal control substrates and the growth which included studies of submicron surface layers showed a trend toward increased short-circuit current density for shallower junctions.
Author : Kazuo Nakajima
Publisher : Springer Science & Business Media
ISBN 13 : 3642020445
Total Pages : 259 pages
Book Rating : 4.6/5 (42 download)
Download or read book Crystal Growth of Silicon for Solar Cells written by Kazuo Nakajima and published by Springer Science & Business Media. This book was released on 2010-03-12 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, a continuation of the series “Advances in Materials Research,” is intended to provide the general basis of the science and technology of crystal growth of silicon for solar cells. In the face of the destruction of the global environment,the degradationofworld-widenaturalresourcesandtheexha- tion of energy sources in the twenty-?rst century, we all have a sincere desire for a better/safer world in the future. In these days, we strongly believe that it is important for us to rapidly developanewenvironment-friendlycleanenergyconversionsystemusingsolar energyastheultimatenaturalenergysource. Forinstance,mostofournatural resources and energy sources will be exhausted within the next 100 years. Speci?cally, the consumption of oil, natural gas, and uranium is a serious problem. Solar energy is the only ultimate natural energy source. Although 30% of total solar energy is re?ected at the earth’s surface, 70% of total solar energy can be available for us to utilize. The available solar energy amounts to severalthousand times larger than the world’s energy consumption in 2000 of about 9,000 Mtoe (M ton oil equivalent). To manage 10% of the world’s energy consumption at 2050 by solar energy, we must manufacture 40 GW solar cells per year continuously for 40 years. The required silicon feedstock is about 400,000 ton per year. We believe that this is an attainable target, since it can be realized by increasing the world production of silicon feedstock by 12times asmuchasthe presentproductionat2005.
Author :
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (16 download)
Download or read book Epitaxial Crystal Silicon Absorber Layers and Solar Cells Grown at 1.8 Microns Per Minute written by and published by . This book was released on 2011 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Martin Labrune
Publisher :
ISBN 13 :
Total Pages : 225 pages
Book Rating : 4.:/5 (117 download)
Download or read book Silicon Surface Passivation and Epitaxial Growth on C-Si by Low Temperature Plasma Processes for High Efficiency Solar Cells written by Martin Labrune and published by . This book was released on 2011 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roberto Murri
Publisher : Bentham Science Publishers
ISBN 13 : 160805456X
Total Pages : 524 pages
Book Rating : 4.6/5 (8 download)
Download or read book Silicon Based Thin Film Solar Cells written by Roberto Murri and published by Bentham Science Publishers. This book was released on 2013-03-20 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon Based Thin Film Solar Cells explains concepts related to technologies for silicon (Si) based photovoltaic applications. Topics in this book focus on ‘new concept’ solar cells. These kinds of cells can make photovoltaic power production an economically viable option in comparison to the bulk crystalline semiconductor technology industry. A transition from bulk crystalline Si solar cells toward thin-film technologies reduces usage of active material and introduces new concepts based on nanotechnologies. Despite its importance, the scientific development and understanding of new solar cells is not very advanced, and educational resources for specialized engineers and scientists are required. This textbook presents the fundamental scientific aspects of Si thin films growth technology, together with a clear understanding of the properties of the material and how this is employed in new generation photovoltaic solar cells. The textbook is a valuable resource for graduate students working on their theses, young researchers and all people approaching problems and fundamental aspects of advanced photovoltaic conversion.
Author : Wei Zhang
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.:/5 (221 download)
Download or read book Liquid Phase Epitaxial Growth of Silicon Thin Film for Solar Cell Application written by Wei Zhang and published by . This book was released on 1994 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book APIVT Epitaxial Growth on Zone-Melt Recrystallized Silicon: Preprint written by and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-junction thin-film silicon solar cells require large grain sizes to ensure adequate photovoltaic performance. Using 2D silicon solar cell simulations on the quantitative effects of grain-boundary recombination on device performance, we have found that the acceptable value of effective grain boundary recombination velocity is almost inversely proportional to grain size. For example, in apolycrystalline silicon thin film with an intragrain bulk minority-carrier lifetime of 1 ?s, a recombination velocity of 104 cm/s is adequate if the grain is 20 ?m across, whereas a very low recombination velocity of 103 cm/s must be accomplished to achieve reasonable performance for a 2-?m grain. For this reason, large grain size on the order of hundreds of ?m is currently a prerequisite forefficient solar cells, although a more effective grain-boundary passivation technique may be developed in the future.
Author : B Baliga
Publisher : Elsevier
ISBN 13 : 0323155456
Total Pages : 337 pages
Book Rating : 4.3/5 (231 download)
Download or read book Epitaxial Silicon Technology written by B Baliga and published by Elsevier. This book was released on 2012-12-02 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epitaxial Silicon Technology is a single-volume, in-depth review of all the silicon epitaxial growth techniques. This technology is being extended to the growth of epitaxial layers on insulating substrates by means of a variety of lateral seeding approaches. This book is divided into five chapters, and the opening chapter describes the growth of silicon layers by vapor-phase epitaxy, considering both atmospheric and low-pressure growth. The second chapter discusses molecular-beam epitaxial growth of silicon, providing a unique ability to grow very thin layers with precisely controlled doping characteristics. The third chapter introduces the silicon liquid-phase epitaxy, in which the growth of silicon layers arose from a need to decrease the growth temperature and to suppress autodoping. The fourth chapter addresses the growth of silicon on sapphire for improving the radiation hardness of CMOS integrated circuits. The fifth chapter deals with the advances in the application of silicon epitaxial growth. This chapter also discusses the formation of epitaxial layers of silicon on insulators, such as silicon dioxide, which do not provide a natural single crystal surface for growth. Each chapter begins with a discussion on the fundamental transport mechanisms and the kinetics governing the growth rate, followed by a description of the electrical properties that can be achieved in the layers and the restrictions imposed by the growth technique upon the control over its electrical characteristics. Each chapter concludes with a discussion on the applications of the particular growth technique. This reference material will be useful for process technologists and engineers who may need to apply epitaxial growth for device fabrication.
Author : Jef Poortmans
Publisher : John Wiley & Sons
ISBN 13 : 9780470091272
Total Pages : 502 pages
Book Rating : 4.0/5 (912 download)
Download or read book Thin Film Solar Cells written by Jef Poortmans and published by John Wiley & Sons. This book was released on 2006-10-02 with total page 502 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.
