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English: Conversion efficiencies of best research solar cells worldwide from 1976 through 2019 for various photovoltaic technologies. Efficiencies determined by certified agencies/laboratories.
Source National Renewable Energy Laboratory (NREL), Golden, CO
Author Dean Levi


Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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current17:08, 4 January 2019Thumbnail for version as of 17:08, 4 January 20192,261 × 1,228 (866 KB)DgwinnerUser created page with UploadWizard
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