Very high efficiency solar cells

Allen Barnett, Douglas Kirkpatrick, Christiana Honsberg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


The Defense Advanced Research Projects Agency has initiated the Very High Efficiency Solar Cell (VHESC) program to address the critical need of the soldier for power in the field. Very High Efficiency Solar Cells for portable applications 1,2 that operate at greater than 55 percent efficiency in the laboratory and 50 percent in production are being developed. We are integrating the optical design with the solar cell design, and have entered previously unoccupied design space that leads to a new architecture paradigm. An integrated team effort is now underway that requires us to invent, develop and transfer to production these new solar cells. Our approach is driven by proven quantitative models for the solar cell design, the optical design and the integration of these designs. We start with a very high performance crystalline silicon solar cell platform. Examples will be presented. Initial solar cell device results are shown for devices fabricated in geometries designed for this VHESC Program.

Original languageEnglish (US)
Title of host publicationNonimaging Optics and Efficient Illumination Systems III
StatePublished - 2006
Externally publishedYes
EventNonimaging Optics and Efficient Illumination Systems III - San Diego, CA, United States
Duration: Aug 13 2006Aug 15 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherNonimaging Optics and Efficient Illumination Systems III
Country/TerritoryUnited States
CitySan Diego, CA


  • Architectures
  • High-efficiency
  • Solar cell

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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