Available Technology

Diffraction: Enhanced Light Absorption of Solar Cells and Photodetectors

The solar and photovoltaic industry has grown steadily over the last several years. In order to maintain these growth rates, the processes and methods need to be continuously improved. Sandia National Laboratories has created a method for enhanced light absorption of solar cells and photodetectors in a narrowband or wideband spectral absorption.
Patent Abstract: 
Enhanced absorption is achieved by utilizing a front-surface grating structure on the surface of the solar cell or photodetector. This generates high diffraction order when light is present. The majority of the light energy is then distributed into higher diffraction orders and absorption is increased.
Benefits 
Improved performance of thin-film solar cells, space solar cells, and wavelength selective photodetectors - Enhanced light absorption of solar cells and photodetectors by diffraction - Improves light absorption without affecting the surface passivation
applications 
Internal Laboratory Ref #: 
US Patent# 6,858,462
Patent Status: 
Available - Various licensing and partnering options are available. Please contact the Intellectual Property Department to discuss.
Patent Issue Date: 
February 29, 2016
Lab Representatives
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