Improved Processing Leads to Increased Energy Storage in Nanocomposites

What is it about?

The use of blade casting, in which solvent evaporation is relatively slow, allows for an improved polymer crystallinity and uniformity of nanocomposite films for energy storage. Specifically, we have realized increases in breakdown strength and energy density through blade casting relative to spin coating.

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Why is it important?

Our work has focused on modifying the morphology of BaTiO3/fluoropolymer nanocomposites through improved processing to reduce porosity and increase matrix crystallinity. This has led to an improvement in the energy storage capacity and efficiency of nanocomposites that are critical for advanced pulsed power sources, power conversion devices, gate dielectrics for organic thin film transistors and flexible electronics, in general.