Patents by Inventor Wladyslaw Walukiewcz

Wladyslaw Walukiewcz 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).

  • Multiband semiconductor compositions for photovoltaic devices
    Publication number: 20060112984
    Abstract: The highly mismatched alloy Zn1-yMnyOxTe1-x, 0?y<1 and 0<x<1 and other Group II-IV-Oxygen implanted alloys have been synthesized using the combination of oxygen ion implantation and pulsed laser melting. Incorporation of small quantities of isovalent oxygen leads to the formation of a narrow, oxygen-derived band of extended states located within the band gap of the Zn1-yMnyTe host. With multiple band gaps that fall within the solar energy spectrum, Zn1-yMnyOxTe1-x is a material perfectly satisfying the conditions for single-junction photovoltaics with the potential for power conversion efficiencies surpassing 50%.
    Type: Application
    Filed: November 29, 2004
    Publication date: June 1, 2006
    Inventors: Wladyslaw Walukiewcz, Kin Yu, Junqiao Wu