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in publisher: "Mobil Tyco Solar Energy Corp., Waltham, Mass. USA"  
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Photovoltaic engineering services pertinent to solar energy conversion

Description: The application of the compound parabolic concentrator (CPC) for use with solar cells has been investigated. Experiments with state-of-the-art Si cells in a CPC and under solar concentration were performed. A theoretical model for calculating the behavior of Si solar cells with concentration was developed. Detailed calculations of the energy distribution in the CPC were made. Finally a cost effectiveness analysis shows that the CPC system will produce power at very much lower cost than will fla… more
Date: June 1, 1975
Creator: Bell, R O; Ho, J C.T.; Kurth, W & Surek, T
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Large area silicon sheet by EFG. Fourth quarterly report, October 1, 1977--December 31, 1977

Description: A detailed economic evaluation is presented of several EFG ribbon growth technology scenarios using the ''SAMICS'' interim price estimation guidelines. It is concluded that the growth of 10 ribbons from a double five ribbon furnace of the general type represented by the existing Machine 3A would meet the requirements of producing ribbon at a price below $20/m/sup 2/ the 1986 goal. The technology requirements are that one operator can operate 2 of the 5 ribbon growth stations in which each ribbo… more
Date: January 15, 1978
Creator: Wald, F.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Large area silicon sheet by EFG. First quarterly report, January 1, 1977--March 31, 1977

Description: Work on an existing multiple growth furnace has begun with the aim of achieving growth of 5, 2'' wide ribbons simultaneously at a rate of 3 in./min. The equipment and the initial experiments carried out are described. Also starting is a task aiming to bring the 5 ribbons under automatic control, equally using pre-existing equipment and designs. Furthermore, the effort to characterize the EFG (edge-defined film-fed growth) materials produced is increased and particular emphasis is placed on meas… more
Date: March 15, 1977
Creator: Mackintosh, B. H.; Morrison, A. D.; Rao, C. V. H. N.; Ravi, K. V.; Serreze, H. B.; Surek, T. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Large area silicon sheet by EFG. Third quarterly progress report, April 1, 1976--June 30, 1976

Description: The ''wide'' ribbon machine, JPL No. 1, is satisfactorily nearing completion. Heat sinks to accelerate growth rates were tested. Although horizontal gradients can be tailored with the heat sinks, no growth rate improvement was realized. The electrical effects of linear boundaries have been studied. Thin ribbon growth as an immediate task is reconsidered.
Date: June 15, 1976
Creator: Morrison, A. D.; Ravi, K. V.; Rao, C. V. H.; Surek, T.; Bliss, D. F. & Garone, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Large area silicon sheet by EFG. Second quarterly progress report, January 1, 1976--March 31, 1976

Description: The thin/fast growth system (JPL No. 2) is modified and operational. An orientation study was run on this system prior to the changeover and thermal geometry experiments have been run since. (110) (211) seed orientation appears to be the optimum. Solar cells have been fabricated from the ribbon material and tested. The wide ribbon system (JPL No. 1) is being designed. Some parts are ordered. The theoretical analysis of heat flow in EFG silicon growth is expanded.
Date: March 15, 1976
Creator: Morrison, A. D.; Ravi, K. V.; Hari Rao, C. V.; Surek, T.; Bliss, D. F. & Garone, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Large area silicon sheet by EFG. Second quarterly report, April 1, 1977--June 30, 1977

Description: During the quarter on which this document reports significant amounts of 2'' wide ribbon have been grown from both growth systems at speeds up to 2''/min. Solar cells prepared from the material have shown conversion efficiencies up to 8% (AM1). Thus, it is believed that the basic effort to produce reasonably clean conditions in these resistance heated furnaces has succeeded. However, the ribbons produced show a cross-sectional structure which is significantly different from that of induction fu… more
Date: June 15, 1977
Creator: Wald, F. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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