About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
| Presentation Title |
Ferroelectric Properties of BaTiO3 Grains, Grains Inside Fibers and Microcrystalline Ceramics |
| Author(s) |
Kerstin Neuhauser, Oliver Diwald, Thomas Berger |
| On-Site Speaker (Planned) |
Kerstin Neuhauser |
| Abstract Scope |
Barium titanate, BaTiO3, as an important ferroelectric, is broadly used in the manufacturing of multi-layer ceramic capacitors (MLCC) or non-volatile random-access memories (FeRAM). Nanostructured BaTiO3, such as nanoparticles with narrow particle size distributions, are a well-suited starting material to engineer novel products, like flexible ferro- or piezoelectrics, via controlled sintering approaches.
Aiming at a systematic comparison of spontaneous polarization effects in different BaTiO3 material-configurations, flat BaTiO3 ceramic surfaces or BaTiO3 grains organized inside fibers, we performed light induced charge separation studies. The method applied is the deposition of silver out of aqueous solutions upon illumination with UV-light. The deposited silver clusters are analyzed using scanning electron microscopy in combination with elemental analysis.
With a focus on grain size dependent effects on the deposition behavior on certain grain facets and grain boundaries, we provide information on processing and microstructure dependent trends in electronic devices that incorporate nanostructured BaTiO3 parts. |