Structural and Dielectric Properties of Yttrium doped Multiferroic Bismuth Ferrite (Bi1-xYxFeO3, x = 0, 0.18) Synthesized by Sol-gel Method

DOI

10.2991/icopia-14.2015.28How to use a DOI?

Keywords

sol-gel, rhombohedral, orthorhombic, particle size, resistivity, conductancy, dielectric constant

Abstract

Pure and Y-doped BiFeO3 have been synthesized by sol–gel method. the gel have been heated at 150°C for 3 h, the low-temperature heating treatment was given to obtain uniform, homogenous, and smaller size. The crystal BiFeO3 have been found after dried and grounded followed by calcination at 750°C for 4 h. The X-ray diffraction (XRD) patterns of pure and Y-doped BiFeO3 are indexed and well matched with rhombohedral structure (R3c) and have been found secondary impurities such as Bi2Fe4O9 (mullite) and Bi25Fe2O39 (sillenite) were detected in pure and Bi1-xYx.FeO3 (x=0, 0.18). The pattern of (104) and (110) peaks in Y-doped BiFeO3 around 2 = 32° indicates reduction of the rhombohedral phase and increase that of the orthorhombic phase (Pbnm). Morphology of pure and Y-doped BiFeO3 with FE-SEM the result doping Yttrium can be reduce particle size between 200 – 400 nm. The LCR study, the impedance (real and imaginer) BiFeO3 and Y doped decreasing at low frequency (40 – 2 kHz) but after frequency 2 kHz is constant value. The impedance (imajiner) of pure is smaller of Yttrium doped BiFeO3. The dielectric constant pure and Ydoped BiFeO3 have been constan after frequency 2 kHz and decreasing at low frequency (40 – 2 kHz). The conductancy pure BiFeO3 is smaller of Y doped BiFeO3 at 42 Hz – 5 MHz and after frequency 2 kHz conductancy of Y doped increases significant.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Suharno Suharno
AU  - Muhammad Hikam
AU  - Bambang Soegijono
AU  - Moh. Toifur
PY  - 2014/09
DA  - 2014/09
TI  - Structural and Dielectric Properties of Yttrium doped Multiferroic Bismuth Ferrite (Bi1-xYxFeO3, x = 0, 0.18) Synthesized by Sol-gel Method
BT  - Proceedings of the 2014 International Conference on Physics and its Applications
PB  - Atlantis Press
SP  - 143
EP  - 147
SN  - 2352-541X
UR  - https://doi.org/10.2991/icopia-14.2015.28
DO  - 10.2991/icopia-14.2015.28
ID  - Suharno2014/09
ER  -