The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2006
Filed:
May. 25, 2004
Charles F. Windisch, Jr., Richland, WA (US);
Gregory J. Exarhos, Richland, WA (US);
Shiv K. Sharma, Honolulu, HI (US);
Charles F. Windisch, Jr., Richland, WA (US);
Gregory J. Exarhos, Richland, WA (US);
Shiv K. Sharma, Honolulu, HI (US);
Battelle Memorial Institute, Richland, WA (US);
Abstract
Cobalt-nickel oxide films of nominal 100 nm thickness, and resistivity as low as 0.06 Ω·cm have been deposited by spin-casting from both aqueous and organic precursor solutions followed by annealing at 450° C. in air. An increase in film resistivity was found upon substitution of other cations (e.g., Zn, Al) for Ni in the spinel structure. However, some improvement in the mechanical properties of the films resulted. On the other hand, addition of small amounts of Li decreased the resistivity. A combination of XRD, XPS, UV/Vis and Raman spectroscopy indicated that NiCoOis the primary conducting component and that the conductivity reaches a maximum at this stoichiometry. When x<0.67, NiO forms leading to an increase in resistivity; when x>0.67, the oxide was all spinel but the increased Co content lowered the conductivity.