Wide temperature polyimide/ZrO2 nanodielectric capacitor film with excellent electrical performance

• DOI: 10.1063/1.3559623
• Publication Date: 2011-02-25T23:50:48Z
• Authors: C. Zou; D. Kushner; S. Zhang
• Keywords: Zirconium dioxide

In this letter, wide temperature dielectric properties and corona resistance of Upilex-S® polyimide (PI) films filled with Zirconium dioxide (ZrO2) nanoparticles were investigated. ZrO2/PI nanodielectrics exhibited the stable properties, high energy density charge-discharge efficiency below 300 °C. Testing showed even a small amount nanofillers can improve lifetime PI significantly. Scanning electron microscopy x-ray microanalysis (SEM-EDS) analysis suggested higher thermal conductivity evaporation ZrO2 may induce improvement. These performance features make nanocomposites attractive for capacitor applications at temperature.