Browsing by Author "Kumar, Ashavani"

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    Composition for energy generator- storage- and strain sensor and methods of use thereof
    (2012-11-13) Ajayan, Pulickel M.; Kumar, Ashavani; Botello-Mendez, Andres Rafael; Gullapalli, Hemtej; Terrones Maldonado, Mauricio; Rice University; United States Patent and Trademark Office
    Compositions and devices for harvesting electrical energy from mechanical and thermal energy, storing such produced energy, and sensing strain based on low cost materials and processes. In embodiments, the compositions are flexible and include a flexible polymer embedded and coated with a nanostructured piezoelectric material.
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    Synthesis of metal and metal oxide nanoparticle-embedded siloxane composites
    (2014-12-09) Ajayan, Pulickel M.; Kumar, Ashavani; Goyal, Anubha; Rice University; United States Patent and Trademark Office
    Metal/metal oxide nanoparticle-embedded polymer films were synthesized in situ wherein the polymerizing agent was utilized for both reduction and polymerization (such as curing). This in situ method avoids the use of any external reducing agent/stabilizing agent and leads to a uniform distribution of nanoparticles in the polymer matrix. In some embodiments, additional heating can be utilized to form the nanoparticles embedded in the polymer film.