| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advances in Dielectric Materials and Electronic Devices
|
| Presentation Title |
Effect of Mo Doping on Structural and Ferroelectric Properties of BaTiO3 Using
Electron Microscopy |
| Author(s) |
Vishesh Sharma, Sumit Pokhriyal, N. P. Lalla, Shivani Sharma |
| On-Site Speaker (Planned) |
Vishesh Sharma |
| Abstract Scope |
The effect of Molybdenum (Mo) doping in pure barium titanate at Ti site has been investigated by probing their structural/microstructural and electric properties. The room temperature XRD data confirms the formation of Mo substituted BaTi0.99Mo0.01O3 in tetragonal symmetry. With minimal doping of 1%, the first two structural transition shifts to the lower temperature significantly as compared barium titanate. The cubic to tetragonal phase transition has been observed at 335 K, tetragonal to orthorhombic at 250 K. The orthorhombic to rhombohedral transition remains unaffected with Mo doping. The temperature dependent XRD, dielectric and polarization measurements, all confirms the shift in the transition temperature in Mo doped BaTiO3. Further, transmission electron microscopy (TEM) has been employed to see the changes in microstructure/domain structure across various ferroelectric phases below 335 K using LN2 based system which confirms the rearrangement of domains in different ferroelectric phases in Mo doped BaTiO3. |