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High efficiency amorphous silicon solar cells fabricated by reactive sputtering

Conference · · Proc. - Electrochem. Soc.; (United States)
OSTI ID:6204785

This paper describes the effect of a number of deposition parameters on the photovoltaic properties of intrinsic amorphous silicon films produced by RF sputtering. The authors find that the argon pressure and the power in the discharge affect the photovoltaic properties through the modification of the film's microstructure. Hydrogen incorporation and small levels of phosphorus and boron impurities affect the photovoltaic properties through reduction of residual dangling bond related defects and modification of their occupation. These optimization studies lead to intrinsic films, which when incorporated in P-I-N solar cell structures, generate external currents up to 13 mA/cm/sup 2/ and open circuit voltages of between 0.85 to 0.95 volts. The efficiency of these devices, 5.5%, is limited by the low FF, typically less than 50%.

Research Organization:
Exxon Research and Engineering Company, Linden, New Jersey
OSTI ID:
6204785
Report Number(s):
CONF-8305161-
Journal Information:
Proc. - Electrochem. Soc.; (United States), Journal Name: Proc. - Electrochem. Soc.; (United States) Vol. 83-11; ISSN PESOD
Country of Publication:
United States
Language:
English