Download or read book Processing of Polycrystalline GaAs Solar Cells written by Rémy Christian de Bernardy-Sigoyer and published by . This book was released on 1976 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Panel Processing written by Robert N. Castellano and published by Archives contemporaines. This book was released on 2010 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar Panel Processing discusses solar cell technology including theory of operation, efficiency, materials, research on silicon processing, thin-film processing, polymer processing, nanoparticle processing, and transparent conductors. The hand book presents detailed descriptions of thin film processing of amorphous silicon, CdTe, CIGS, and GaAs panels. The handbook details Key Growth Drivers us solar panel usage, Challenges Facing The Solar Power Industry , Cost Of A Photovoltaic System, and Operating Metrics 0f A Photovoltaic Systems Increasing focus on the demand for energy led to conduct this study, which determines the current status of thin films used in various kinds of energy. Our goal was to assess the value of thin films used in the fabrication of six energy technologies for 2007, project 2008 demand, and then forecast thin film demand growth to 2013. This study focuses on the merits of thin films and main key objective was to present a comprehensive analysis of the current market for thin films and its future direction. Global demand for traditional fossil fuels has risen at an unprecedented rate over the lest several years. The economics of supply and demand have driven prices of oil, gas, and coal to record levels. In addition, fossil fuels are considered a source of pollution that aids climate change. Nations have responded by instituting reductions in activities that require the use of fossil fuels and by searching for alternative energy methods. This handbook examines traditional crystalline and thin film photovoltaic fabrication and operation. Thin films are often applied to reduce the cost of product fabrication, improve performance, and provide more flexibility in product design. In addition, they are environmentally benign. The Solar Panel Processing Handbook study of thin films in energy presents current and emerging technologies for various types of solar cells, detaisl the industry structure of each segment, discusses the competitive environment of each type of energy, and reviews current and future applications for thin films. Handbook study will be of interest to those who make solar cells, semiconductors and their manufacturing equipment, thin films, materials, chemicals and gases.
Download or read book Development of Polycrystal GaAs Solar Cells written by Rockwell International. Electronics Research Center and published by . This book was released on 1979 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Polycrystal GaAs Solar Cells written by Rockwell International. Electronics Research Center and published by . This book was released on 1979 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thin films of gallium arsenide on low cost substrates written by Rockwell International. Electronics Research Center and published by . This book was released on 1979 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thin Films of Gallium Arsenide on Low cost Substrates written by Ralph Powers Ruth and published by . This book was released on 1979 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The metalorganic chemical vapor deposition (MO-CVD) technique has been applied to the growth of thin films of GaAs and GaAlAs on inexpensive polycrystalline or amorphous substrate materials (glasses, glass-ceramics, alumina ceramics, and metals) for use in fabrication of large-area low-cost photovoltaic device structures. Trimethylgallium (TMG), arsine (AsH3), and trimethylaluminum (TMAl) are mixed in appropriate concentrations at room temperature in the gaseous state and pyrolyzed at the substrate, which is heated in a vertical reactor chamber to temperature in the range 600 to 800°C, to produce the desired film composition and properties. Of ten candidate low-cost substrates initially identified for investigation, Corning Code 0317 glass and composites of CVD Ge/glass and sputtered Mo/glass were found to be the most satisfactory, the latter eventually serving as a reference substrate against which to compare the performance of other substrates. Single-crystal window-type solar cells, polycrystalline Schottky-barrier cells, and deposited-junction polycrystalline cells have been grown, fabricated, and characterized. Epitaxial GaAlAs/GaAs p-n junction cells with thin (~500Å) Ga02Al08As windows and GaAs:Zn - GaAs:Se junctions were made with AMO efficiencies as high as 12.8 percent with no AR coating, indicating the high quality of the films grown by the MO-C+VD process. Schottky barrier cells with efficiencies of 2.25 percent AMO (no AR coating) have been made on n/n polycrystalline GaAs structures on Mo/glass composite substrates, with short-circuit current densities up to 12.5 mA/cm2. Also, results of analyses of material and processing costs associated with fabrication of thin-film GaAlAs/GaAs solar cells by the MO-CVD process are discussed.
Download or read book Proceedings of the Symposium on Materials and New Processing Technologies for Photovoltaics written by and published by . This book was released on 1981 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Third Symposium on Materials and New Processing Technologies for Photovoltaics written by and published by . This book was released on 1982 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amos Solar Cells on Polycrystalline Gallium Arsenide written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Focus on Polycrystalline Thin Film Cells written by and published by . This book was released on 1979 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thin Films of Gallium Arsenide on Low cost Substrates written by Ralph Powers Ruth and published by . This book was released on 1980 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thin Films of Gallium Arsenide on Low cost Substrates Quarterly Project Report No 3 January 2 1977 April 2 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The metallorganic chemical vapor deposition (MO-CVD) technique is being applied to the growth of thin films of GaAs and GaAlAs on inexpensive polycrystalline or amorphous substrate materials (glasses, glass-ceramics, alumina ceramics, and metals) for use in fabrication of large-area low-cost photovoltaic device structures. Polycrystalline GaAs films have now been grown on all of the low-cost materials on the candidate substrate list. Single-crystal films of GaAs and Ga/sub 1-x/AlxAs(x approximately 0.8) have been grown to study the Zn and Se doping of these materials and to provide the doping data needed to grow p-n junctions and heterostructure solar cell configurations. The physical properties of GaAs films grown on a variety of substrates--including Mo/glass, Mo/alumina, and Ge layers on all of the candidate insulator materials--have been studied, and the results of these investigations are described. Single-crystal window-type heterostructure solar cells have been fabricated in GaAlAs/GaAs multilayer structures grown by the MO-CVD process. Results show that the MO-CVD process is capable of producing materials with the photovoltaic properties required for high-efficiency GaAlAs/GaAs solar cells. Polycrystalline solar cells have also been grown and fabricated. Various techniques for characterizing polycrystalline GaAs films have been developed further, and details of these studies are given. (WHK).
Download or read book GaA1As GaAs Solar Cell Process Study written by David W. Almgren and published by . This book was released on 1980 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Available information on liquid phase, vapor phase (including chemical vapor deposition) and molecular beam epitaxy growth procedures that could be used to fabricate single crystal, heteroface, (AlGa) As/GaAs solar cells, for space applications is summarized. A comparison of the basic cost elements of the epitaxy growth processes shows that the current infinite melt LPE process has the lower cost per cell for an annual production rate of 10,000 cells. The metal organic chemical vapor deposition (MO-CVD) process has the potential for low cost production of solar cells but there is currently a significant uncertainty in process yield, i.e., the fraction of active material in the input gas stream that ends up in the cell. Additional work is needed to optimize and document the process parameters for the MO-CVD process. (NTRL site)
Download or read book GaAlAs GaAs Solar Cell Process Study written by David W. Almgren and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1981-10 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
