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Novel Materials and Devices for Sunlight Concentrating Systems

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1 Author(s)
Hovel, H.J. ; IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598, USA

Photovoltaic conversion under concentrated sunlight is a highly promising technique that could make solar-electric power generation economically competitive with fossil fuel power generation by the mid-1980s. An economic analysis has been performed which demonstrates that solar cell efficiency, concentrator efficiency, and concentrator cost are the most important parameters in a concentrating photovoltaic system; solar cell cost is only of secondary importance (at least for Si solar cells). Six novel structures are described, including modified conventional Si cells, Ga1−xAlx As/GaAs devices, interdigitated cells, vertical and horizontal multijunction cells and “multicolor” devices.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

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IBM Journal of Research and Development  (Volume:22 ,  Issue: 2 )