National Technology & Engineering Solutions of Sandia, LLC

Margaret Ellen Gordon

Jaime Christopher Grunlan

Erik David Spoerke

Charles R Bryan

Mark A Rodriguez

Kenneth Miguel Armijo

Eric John Schindelholz

Neil R Sorensen

Clay Payne

Anthony Martino

Ashley Maes

The present disclosure is directed to variable composition ceramics. ZrHfWPOand HfWPOexhibit large negative thermal expansion that is linear over a large temperature range up to at least 900&#xb0; C., These new ceramic material particles may be mixed with polymers to make a composite suitable for use in backsheets for photovoltaic modules or in other applications. The thermal expansion coefficient of the composite can be tailored to match that of the solar cell in order to reduce stress resulting from daily thermal cycling.

Tunable negative coefficient thermal expansion materials and composites

Polymer-clay nanocomposites thin film coatings have improved water vapor and oxygen permeability, in addition to improved corrosion resistance, while retaining high transparency, high electrical resistivity, and excellent fire-retardant properties for use as encapsulants for photovoltaic module assemblies and barrier coatings in other photovoltaic applications.

Nanocomposite barrier films for photovoltaic applications

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Albuquerque, NM, United States of America

Margaret Ellen Gordon