The effect of Mn-doping on dielectric properties of titanate nanowires
DOI:
https://doi.org/10.55674/jmsae.v11i3.245716Keywords:
Titanate nanowires, Dielectric properties, Titanate nanowires; Dielectric properties; Mn-doped TNWs.Abstract
Mn-doped titanate nanowires (TNWs) with system of MnxTi3-xO7 (Na0.96H1.04∙3.42H2O) (where x = 0, 0.05, 0.10, 0.20, and 0.30) were fabricated a hydrothermal route at 130 °C for 24 h. The products were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-vis spectroscopy. The nanowires were an average diameter of about 10–50 nm and an average range length of micrometer scales. The dielectric relaxation in the MnxTi3-xO7 (Na0.96H1.04∙3.42H2O) system was determined by LCR Meter in difference frequency (102–106 Hz) at various temperatures. The Mn-doped TNWs samples showed a giant dielectric exhibit with a dielectric constant of about 104 at 30 °C and 1 kHz. They all have a Debye-like relaxation based on the Maxwell-Wagner polarization. The dielectric constant of Mn-doped TNWs significantly increased with increasing doping levels.
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