Polyindole-Yittrium Oxide (PIn-Y2O3) composite was synthesized in the laboratory through chemical polymerization process. The structural and morphological studies of PIn-Y2O3 composite were investigated using X-ray diffraction (XRD) and scanning electron microscopic (SEM) techniques. These studies showed that PIn-Y2O3 composite was amorphous in nature and formed with spherical granule shape. The dielectric response was measured through LCR meter in the frequency range from 100 Hz to 1 MHz. The dielectric studies revealed that incorporation of Y2O3 into polymeric matrix improved the dielectric behavior of PIn polymer and markedly suitable for its application in high frequency capacitor and many other electronic devices.
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