Patents by Inventor Nche Tumasang Fofang

Nche Tumasang Fofang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Photovoltaic cell with light trapping for enhanced efficiency
    Patent number: 9190542
    Abstract: The efficiency of a photovoltaic cell is enhanced by light trapping using Mie-scattering nanostructures. In one embodiment, an array of nanocylinders is formed on the front surface of a silicon film to enhance forward scattering into the film, and an array of nanocylinders is formed on the back surface to enhance backscattering so that more light is absorbed within the silicon film. In an alternate embodiment, a mirror layer is formed on the back surface of the silicon film to reflect light within the film back toward the front-surface nanocylinder array.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: November 17, 2015
    Assignee: Sandia Corporation
    Inventors: Igal Brener, Nche Tumasang Fofang, Ting S. Luk