Download or read book Solar Silicon Via the Dow Corning Process written by Lee Philip Hunt and published by . This book was released on 1979 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar silicon via the Dow Corning process written by Dow Corning Corporation. Solid-State Research and Development Laboratory 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 Solar Silicon Via the Dow Corning Process written by Lee Philip Hunt and published by . This book was released on 1979 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Silicon Via the Dow Corning Process 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: Quartz, as the silicon source material, has been identified to be plentifully available at a sufficient purity and reactivity to meet the objective of this program. Further investigations of deposits are warranted when the program reaches a higher level of development. Carbon, as a reductant for quartz, must be made available so as to have suitable reactivity in conjunction with high purity, especially with respect to boron and phosphorus. A detailed experimental plan has been developed to do this. Different sources of carbon have been selected to be subjected to various purification methods and reactivity-enhancement processes. A developmental-scale arc furnace has been installed and will undergo start-up during January. This equipment will be ready next quarter to perform quartz-carbon reactivity testing. An updated economic analysis of the Dow Corning Process for SoG-Si shows the manufacturing cost to be $7.37/kg (January 1975 dollars) at a level of 2700 metric tons per year. The capital investment would be $38.2 million.
Download or read book Solar Silicon Processes written by Bruno Ceccaroli and published by CRC Press. This book was released on 2016-10-03 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polycrystalline silicon (commonly called "polysilicon") is the material of choice for photovoltaic (PV) applications. Polysilicon is the purest synthetic material on the market, though its processing through gas purification and decomposition (commonly called "Siemens" process) carries high environmental risk. While many current optoelectronic applications require high purity, PV applications do not and therefore alternate processes and materials are being explored for PV grade silicon. Solar Silicon Processes: Technologies, Challenges, and Opportunities reviews current and potential future processing technologies for PV applications of solar silicon. It describes alternative processes and issues of material purity, cost, and environmental impact. It covers limits of silicon use with respect to high-efficiency solar cells and challenges arising from R&D activities. The book also defines purity requirements and purification processes of metallurgical grade silicon (MG-Si) and examines production of solar grade silicon by novel processes directly from MG-Si and/or by decomposition of silane gas in a fluidized bed reactor (FBR). Furthermore, the book: Analyzes past research and industrial development of low-cost silicon processes in view of understanding future trends in this field. Discusses challenges and probability of success of various solar silicon processes. Covers processes that are more environmentally sensitive. Describes limits of silicon use with respect to high-efficiency solar cells and challenges arising from R&D activities. Defines purity requirements and purification processes of MG-Si. Examines production of solar grade silicon directly from MG-Si.
Download or read book Solar Silicon Via the Dow Corning Process Seventh Quarterly Report January March 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Installation of the Direct Arc Reactor (DAR) system was completed. Reactor start-up was initiated after modifications were made as recommended by the safety start-up team. A series of experiments was started aimed at establishing baseline operating conditions for the DAR. These experiments use pure quartz and unpurified charcoal as reactants. Two baseline experiments were completed. The longest experiment (48h) was terminated on schedule after producing 110 kg of silicon. After initial reactor conditioning, silicon was produced at 2.6 kg/h using 28 kWh/kg. A program was developed with the goal of identifying various carbon reductants having boron and phosphorus concentrations of about 1 ppm or less. The necessity is stressed of carrying out a development program for silicon purification by unidirectional solidification. This must be done in parallel with the development program for DAR-silicon production in order to develop the overall Dow Corning Process for solar-grade silicon within the time goals of the LSSA Project. The technology for unidirectional solidification requirements under the Dow Corning Process neither exist nor are they being developed.
Download or read book Advanced Silicon Materials for Photovoltaic Applications written by Sergio Pizzini and published by John Wiley & Sons. This book was released on 2012-06-07 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, the silicon feedstock for photovoltaic cells comes from processes which were originally developed for the microelectronic industry. It covers almost 90% of the photovoltaic market, with mass production volume at least one order of magnitude larger than those devoted to microelectronics. However, it is hard to imagine that this kind of feedstock (extremely pure but heavily penalized by its high energy cost) could remain the only source of silicon for a photovoltaic market which is in continuous expansion, and which has a cumulative growth rate in excess of 30% in the last few years. Even though reports suggest that the silicon share will slowly decrease in the next twenty years, finding a way to manufacture a specific solar grade feedstock in large quantities, at a low cost while maintaining the quality needed, still remains a crucial issue. Thin film and quantum confinement-based silicon cells might be a complementary solution. Advanced Silicon Materials for Photovoltaic Applications has been designed to describe the full potentialities of silicon as a multipurpose material and covers: Physical, chemical and structural properties of silicon Production routes including the promise of low cost feedstock for PV applications Defect engineering and the role of impurities and defects Characterization techniques, and advanced analytical techniques for metallic and non-metallic impurities Thin film silicon and thin film solar cells Innovative quantum effects, and 3rd generation solar cells With contributions from internationally recognized authorities, this book gives a comprehensive analysis of the state-of-the-art of process technologies and material properties, essential for anyone interested in the application and development of photovoltaics.
Download or read book Electricity from Photovoltaic Solar Cells Silicon material written by and published by . This book was released on 1986 with total page 82 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 1978 with total page 704 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 1981 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1981 with total page 1740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Separation in Glass written by Oleg V. Mazurin and published by Elsevier. This book was released on 1984-01-01 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase Separation in Glass
Download or read book Solar Energy Index written by George Machovec and published by Elsevier. This book was released on 2013-10-22 with total page 1007 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar Energy Index is an index of resources dealing with solar energy, including archival materials from the International Solar Energy Society collection; references to articles in major solar journals; patents and pamphlets; National Technical Information Service reports; unbound conference proceedings; and other assorted reports. Both theoretical and ""how-to-do-it"" publications are well represented. This book places particular emphasis on terrestrial solar thermal and photovoltaic applications of solar energy. Subjects are classified according to physics, terrestrial wind, collectors, space heating and cooling, economics, materials, distillation, thermal-electric power systems, photoelectricity, solar furnaces, cooking, biological applications, water heaters, photochemistry, energy storage, mechanical devices, evaporation, sea power, space flight applications, and industrial applications. Topics covered range from wind energy and bioconversion to ocean thermal energy conversion, heliohydroelectric power plants, solar cells, turbine generation systems, thermionic converters, batteries and fuel cells, and pumps and engines. This monograph will be of interest to government officials and policymakers concerned with solar energy.
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1979 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1250 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
