50% Efficient Solar Cell Architectures and Designs

Allen Barnett, Christiana Honsberg, Douglas Kirkpatrick, Sarah Kurtz, Duncan Moore, David Salzman, Richard Schwartz, Jeffrey Gray, Stuart Bowden, Keith Goossen, Michael Haney, Dan Aiken, Mark Wanlass, Keith Emery

Research output: Contribution to conferencePaperpeer-review

81 Scopus Citations


Very High Efficiency Solar Cells (VHESC) for portable applications [1] that operate at greater than 55 percent efficiency in the laboratory and 50 percent in production are being created. We are integrating the optical design with the solar cell design, and have entered previously unoccupied design space that leads to a new paradigm. This project 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 languageAmerican English
Number of pages5
StatePublished - 2006
Event2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4 - Waikoloa, HI, United States
Duration: 7 May 200612 May 2006


Conference2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4
Country/TerritoryUnited States
CityWaikoloa, HI

NREL Publication Number

  • NREL/CP-520-39880


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