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Analysis and evaluation in the production process and equipment area of the low-cost solar array project

Description: The energy consumed in manufacturing silicon solar cell modules was calculated for the current process, as well as for 1982 and 1986 projected processes. In addition, energy payback times for the above three sequences are shown. The module manufacturing energy was partitioned two ways. In one way, the silicon reduction, silicon purification, sheet formation, cell fabrication, and encapsulation energies were found. In addition, the facility, equipment, processing matrial, and direct material los… more
Date: August 1, 1979
Creator: Goldman, H. & Wolf, M.
Partner: UNT Libraries Government Documents Department
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Analysis and evaluation of processes and equipment in Tasks II and IV of the Low-Cost Solar Array Project. Quarterly report, April-July 1978

Description: The significant economic data for the current production multiblade wafering and inner diameter slicing processes were tabulated and compared to data on the experimental and projected Varian multiblade slurry, STC ID diamond coated blade, Yasunaga multiwire slurry and Crystal Systems fixed abrasive multiwire slicing methods. Cost calculations were performed for current production processes and for 1982 and 1986 projected wafering techniques.
Date: November 1, 1978
Creator: Goldman, H. & Wolf, M.
Partner: UNT Libraries Government Documents Department
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Analysis and evaluation of processes and equipment in Tasks II and IV of the Low-Cost Solar Array Project. Quarterly report, October 1977-January 1978

Description: Several experimental and projected Czochralski crystal growing process methods were studied and compared to available operations and cost-data of recent production Cz-pulling, in order to elucidate the role of the dominant cost contributing factors. From this analysis, it becomes apparent that substantial cost reductions can be realized from technical advancements which fall into four categories: an increase in furnace productivity; the reduction of crucible costs through use of the crucible fo… more
Date: August 1, 1978
Creator: Goldman, H. & Wolf, M.
Partner: UNT Libraries Government Documents Department
open access

Analysis and evaluation in the production process and equipment area of the Low-Cost Solar Array Project. Quarterly report, January-April 1979

Description: Significant economic and technical data on the current front junction formation processes of Spectrolab's gaseous diffusion, and of involving the Varian-Extrion 200 to 1000 implanter were tabulated, and were used to judge the feasibility of diffusion proposals by Motorola and RCA and ion implantation proposals by Lockheed, Motorola, RCA, and Spire to meet future LSA-JPL guidelines. Cost calculations, consistent with the SAMICS methodology, were performed for the junction formation processe… more
Date: June 1, 1979
Creator: Goldman, H. & Wolf, M.
Partner: UNT Libraries Government Documents Department
open access

Analysis and evaluation in the production process and equipment area of the Low-Cost Solar Array Project. Quarterly report, April-July 1980

Description: After the influence of the metallization design on the performance of solar cells, particularly large area cells such as 10 cm x 10 cm size, has been analyzed, and a set of design rules derived from this analysis in the two preceding quarterly reports, this report deals with the available options for metal deposition. The principles underlying the different options are described. These options include chemical deposition methods, both electroless and electrolytic, and physical methods, which co… more
Date: January 1, 1981
Creator: Goldman, H. & Wolf, M.
Partner: UNT Libraries Government Documents Department
open access

Analysis and evaluation in the production process and equipment area of the low-cost solar-array project. Quarterly report, July-October, 1980

Description: The attributes of the various metallization processes have been investigated which express themselves in economic results. It has been shown that several metallization process sequences will lead to adequate metallization for large area, high performance solar cells at a metallization add-on price in the range of $6.- to 12.-/m/sup 2/, or 4 to 8 cents/W(peak), assuming 15% efficiency. Conduction layer formation by thick film silver or by tin or tin/lead solder leads to metallization add-on pric… more
Date: January 1, 1981
Creator: Wolf, M. & Goldman, H.
Partner: UNT Libraries Government Documents Department
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