Patents by Inventor Shade R. Johnson

Shade R. Johnson 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).

  • LATTICE MATCHED MULTI-JUNCTION PHOTOVOLTAIC AND OPTOELECTRONIC DEVICES
    Publication number: 20100301454
    Abstract: The present invention provides semiconductor structures comprising a substrate and at least three III-V and/or II-VI multi junction building blocks, each comprising a p-n junction having at least two alloy layers, formed over the substrate, provided at least one multi-junction building block comprises II-VI alloy layers. Further described are methods for preparing semiconductor structures utilizing a sacrificial or etch-stop ternary III-V alloy layer over an III-V substrate.
    Type: Application
    Filed: November 10, 2008
    Publication date: December 2, 2010
    Inventors: Yong-Hang Zhang, Shade R. Johnson, Shui-Qing Yu, Ding Ding, Songnan Wu