AUTHOR=Alshoaibi Adil , Hussain Fayaz , Mohsin Fatima , Alnaim Nisrin , Almulhem Najla 

TITLE=Different concentrations of Ti4+ as a donor and electronic properties of Bi2-xTixO3

JOURNAL=Frontiers in Materials

VOLUME=Volume 10 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2023.1004889

DOI=10.3389/fmats.2023.1004889

ISSN=2296-8016

ABSTRACT=Bi(2-x)TixO3 (x= 0, 0.01, 0.03. & 0.05) (BO-xT) ceramics are prepared by conventional solid-state route followed by low sintering temperatures. X-ray diffraction analyses show the presence of the monoclinic phase of Bi2O3. The electrical conductivities at room temperature concerning the frequency (ranging from 25 kHz to 5MHz) and Seebeck Coefficient ranging from 50 °C to 400 °C were measured. With an increase of Ti (dopant) content, the conductivity and Seebeck Coefficient increased with respect to the temperature increment. The BO-3T has the highest Seebeck value (47µV/°C), which shows a higher carrier concentration. In terms of electrical conductivities, the BO-5T ceramic shows the maximum electrical conductivity i.e. 2.0x10-9 µS/m as compared to other samples, which exhibit the presence of free electrons. Moreover, relative permittivity (dielectric constant) and dielectric loss are also measured concerning the frequency at room temperature to investigate the dielectric behavior of the ceramics. This low-temperature sintering ceramics will open new applications in the domain of electronic materials.