The effect of Mn-doping on dielectric properties of titanate nanowires


  • Pristanuch Masakul Department of Applied Physics, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, 30000 Thailand
  • Prasit Thongbai Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
  • Santi Maensiri School of Physics, Institute of Science Suranaree University of Technology, Nakhon Ratchasima, 30000 Thailand



Titanate nanowires, Dielectric properties, Titanate nanowires; Dielectric properties; Mn-doped TNWs.


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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How to Cite

Masakul, P., Thongbai, P., & Maensiri, S. (2022). The effect of Mn-doping on dielectric properties of titanate nanowires . Journal of Materials Science and Applied Energy, 11(3), 245716.