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Large area silicon sheet by efg
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kalejs, J. P. |
| Copyright Year | 1982 |
| Description | Work carried out on the JPL Flat Plate Solar Array Project, for the purpose of developing a method for silicon ribbon production by Edge-defined Film-fed Growth (EEG) for use as low-cost substrate material in terrestrial solar cell manufacture, is described. A multiple ribbon furnace unit that is designed to operate on a continuous basis for periods of at least one week, with melt replenishment and automatic ribbon width control, and to produce silicon sheet at a rate of one square meter per hour, was constructed. Program milestones set for single ribbon furnace operation to demonstrate basic EEG system capabilities with respect to growth speed, thickness and cell performance were achieved for 10 cm wide ribbon: steady-state growth at 4 cm/min and 200 micron thickness over periods of an hour and longer was made routine, and a small area cell efficiency of 13+% demonstrated. Large area cells of average efficiency of 10 to 11%, with peak values of 11 to 12% were also achieved. The integration of these individual performance levels into multiple ribbon furnace operation was not accomplished. |
| File Size | 3602703 |
| Page Count | 94 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830010948 |
| Archival Resource Key | ark:/13960/t1pg6h98g |
| Language | English |
| Publisher Date | 1982-09-15 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Thin Films Crystal Growth Ribbons Solar Arrays Furnaces Flat Plates Silicon Substrates Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
