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Open-circuit voltage improvements in low-resistivity solar cellsMechanisms limiting the open-circuit voltage in 0.1 ohm-cm solar cells were investigated. It was found that a rather complicated multistep diffusion process could produce cells with significantly improved voltages. The voltage capabilities of various laboratory cells were compared independent of their absorption and collection efficiencies. This was accomplished by comparing the cells on the basis of their saturation currents or, equivalently, comparing their voltage outputs at a constant current-density level. The results show that for both the Lewis diffused emitter cell and the Spire ion-implanted emitter cell the base component of the saturation current is voltage controlling. The evidence for the University of Florida cells, although not very conclusive, suggests emitter control of the voltage in this device. The data suggest further that the critical voltage-limiting parameter for the Lewis cell is the electron mobility in the cell base.
Document ID
19790024478
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Godlewski, M. P. (NASA Lewis Research Center Cleveland, OH, United States)
Klucher, T. M. (NASA Lewis Research Center Cleveland, OH, United States)
Mazaris, G. A. (NASA Lewis Research Center Cleveland, OH, United States)
Weizer, V. G. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1979
Publication Information
Publication: Solar Cell High Efficiency and Radiation Damage, 1979
Subject Category
Energy Production And Conversion
Accession Number
79N32649
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19790024469Collected WorksSolar Cell High Efficiency and Radiation Damage, 1979
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