Developing the properties of polyvinylidene fluoride/(Ba0.8Sr0.2)(Ti0.9Zr0.1)O3 composite films for embedded capacitors using

The average particle sizes of nanoscale (Ba_0.8Sr_0.2)(Ti_0.9 Zr_0.1)O₃ ceramic powder (nano-BSTZ) was approximately 73nm. Polyvinylidene fluoride (PVDF)/nano-BSTZ composite films with various contents of the nano-BSTZ were screen-printed on indium tin oxide glass substrates. From the XRD patterns, PVDF was the semicrystalline type polymer. The content of the nano-BSTZ increased from 10 wt% to 50 wt%, the dielectric constants of the PVDF/nano-BSTZ films slightly decreased with increasing measured frequency. The specific capacitance values of the PVDF/nano-BSTZ composite films mixing with 50 wt% nano-BSTZ was 11.6 nF/cm² (measured at 1 kHz). Those results suggested that the PVDF/nano-BSTZ composite films were a good candidate to develop thinner embedded capacitor devices with higher capacitance value.