IBM Journal of Research and Development
IBM Skip to main content
  Home     Products & services     Support & downloads     My account  

  Select a country  
Journals Home  
  Systems Journal  
Journal of Research
and Development
    Current Issue  
    Recent Issues  
    Papers in Progress  
    Recent publications  
    Author's Guide  
  Contact Us  
  Related links:  
     IBM Research  

IBM Journal of Research and Development  
Volume 22, Number 2, Page 112 (1978)
Nontopical Issue
  Full article: arrowPDF   arrowCopyright info


Novel Materials and Devices for Sunlight Concentrating Systems

by H. J. Hovel
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.
Related Subjects: Films; Materials; Semiconductor technology; Solar energy