Patents by Inventor Amol N. Chandekar

Amol N. Chandekar 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).

  • Bandgap-shifted semiconductor surface and method for making same, and apparatus for using same
    Patent number: 8673399
    Abstract: Titania is a semiconductor and photocatalyst that is also chemically inert. With its bandgap of 3.2 and greater, to activate the photocatalytic property of titania requires light of about 390 nm wavelength, which is in the ultra-violet, where sunlight is very low in intensity. A method and devices are disclosed wherein stress is induced and managed in a thin film of titania in order to shift and lower the bandgap energy into the longer wavelengths that are more abundant in sunlight. Applications of this stress-induced bandgap-shifted titania photocatalytic surface include photoelectrolysis for production of hydrogen gas from water, photovoltaics for production of electricity, and photocatalysis for detoxification and disinfection.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: March 18, 2014
    Assignee: Nanoptek Corporation
    Inventors: John M. Guerra, Lukas M. Thulin, Amol N. Chandekar