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Limiting factors for the application of crystalline upgraded metallurgical grade silicon

Journal Article · · IEEE Trans. Electron Devices; (United States)
Differently processed upgraded metallurgical grade silicon (UMG-Si) has been used to produce planar diffused solar cells. The results obtained from these cells were used to evaluate the limiting factors governing the conversion efficiency in UMG-Si-cells. The present state of practical cell processing was taken into account for the discussion of the potential of new technologies. For conventionally processed cells on UMG-Si having a planar junction, it appears that a conversion efficiency of about 13 percent under AM1.5 conditions (incident light intensity = 1 kWm/sup -2/, T = 27/sup 0/C) cannot be exceeded. Experimentally a conversion efficiency of 10.5 percent was obtained.
Research Organization:
Ludwig Boltzmann Institut fur Festkorperphysik, Wien
OSTI ID:
6295700
Journal Information:
IEEE Trans. Electron Devices; (United States), Journal Name: IEEE Trans. Electron Devices; (United States) Vol. ED-31:5; ISSN IETDA
Country of Publication:
United States
Language:
English