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Lsa Large Area Silicon Sheet Task Continuous Liquid Feed Czochralski Growth Quarterly Report No 5 October December 1978
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Book Synopsis LSA Large Area Silicon Sheet Task Continuous Liquid Feed Czochralski Growth. Quarterly Report No. 5, October-December 1978 by :
Download or read book LSA Large Area Silicon Sheet Task Continuous Liquid Feed Czochralski Growth. Quarterly Report No. 5, October-December 1978 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on the design and development of equipment and processes, to demonstrate continuous growth of crystals by the Czochralsi method, suitable for producing single silicon crystals for use in solar cells is described. Continuous growth is defined as the growth of 100 Kg of single silicon crystal, 10 cm in diameter, from one container. Siltec's approach to meeting this goal is to develop a furnace with continuous liquid replenishment of the growth crucible, accomplished by a melt-down system and a liquid transfer mechanism, with associated automatic feedback controls. Elements of the transfer system were further developed and tested during actual transfer runs. Considerable simplification of the heating element of the transfer tube was achieved. Accuracy and reliability of the temperature sensor, which is part of the power input control system for the transfer tube, was improved. Following the schedule of the growth demonstration plan, melt-down and transfer of molten silicon from the melt-down crucible into the growth crucible containing molten silicon was performed successfully, verifying the melt-down and transfer operation (rate of silicon transfer> 2 Kg/hr). The final task of the growth demonstration plan prior to attempting 100 Kg throughput runs was achieved. This included the demonstration of continuous melt replenishment of the growth crucible while growing a crystal of 100 mm diameter and maintaining a constant melt level in the growth crucible. Crystals grown from a melt with continuous liquid replenishment exhibited a very small or zero longitudinal resistivity gradient when the ratio of the dopant concentrations of the replenishing melt to the melt in the growth crucible was equal to the effective segregation coefficient of the used dopant.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1980 with total page 1346 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 1980 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1979 with total page 734 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.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1983 with total page 1178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1983-10 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electricity from Photovoltaic Solar Cells: Silicon sheet: wafers and ribbons by :
Download or read book Electricity from Photovoltaic Solar Cells: Silicon sheet: wafers and ribbons written by and published by . This book was released on 1986 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1982 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy: a Continuing Bibliography with Indexes by :
Download or read book Energy: a Continuing Bibliography with Indexes written by and published by . This book was released on 1979 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis LSA Large Area Silicon Sheet Task Continuous Czochralski Process Development by :
Download or read book LSA Large Area Silicon Sheet Task Continuous Czochralski Process Development written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy written by and published by . This book was released on 1979 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Book Synopsis LSA Large Area Silicon Sheet Task Enhanced I.D. Slicing by : Siltec Corporation
Download or read book LSA Large Area Silicon Sheet Task Enhanced I.D. Slicing written by Siltec Corporation and published by . This book was released on 1980 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis LSA Large Area Silicon Sheet Task Enhanced I.D. Slicing by : Siltec Corporation
Download or read book LSA Large Area Silicon Sheet Task Enhanced I.D. Slicing written by Siltec Corporation and published by . This book was released on 1980 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis LSA Large Area Silicon Sheet Task Enhanced I.D. Slicing by :
Download or read book LSA Large Area Silicon Sheet Task Enhanced I.D. Slicing written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Area Silicon Sheet by EFG. Quarterly Report No. 1, January 1, 1978--March 31, 1978 by :
Download or read book Large Area Silicon Sheet by EFG. Quarterly Report No. 1, January 1, 1978--March 31, 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Project Quarterly Report-8, January 1978--March 1978 by :
Download or read book Project Quarterly Report-8, January 1978--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: Progress made by the Low-Cost Silicon Solar Array Project during the period January through March 1978 is described. Task reports on silicon material processing, large-area silicon sheet development, encapsulation materials testing and development, project engineering and operations, and manufacturing techniques, plus the steps taken to integrate these efforts are included.
Book Synopsis Purification Process and Characterization of Ultra High Purity Metals by : Yoshio Waseda
Download or read book Purification Process and Characterization of Ultra High Purity Metals written by Yoshio Waseda and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book starts with an extended introductory treatise on the fundamentals before moving on to a detailed description of the new methods of purification of transition metals and rare earth metals.
