Open Access
3- https://doi.org/10.1149/1.3605721
Selective Ferroelectric Domain Mapping of PbTiO3 Thin Films Using Self-Assembled Polyelectrolyte
- Jul 12, 2011
- Journal of The Electrochemical Society
- J Y Son +5 more
Abstract
We report the ferroelectric domain mapping of a PbTiO3 (PTO) thin film using the combination of atomic force microscopy (AFM) and self-assembled polyelectrolytes. Epitaxial PTO thin films (50-nm-thick) deposited onto a Nb-doped SrTiO3 substrate via pulsed laser deposition exhibit 180° stripe ferroelectric domain structures with a mean domain width of about 10 nm. The ferroelectric PTO domain with upward (downward) polarization is selectively attached to a negatively (positively) charged poly acrylic acid (poly allylamine hydrochloride) layer as a polyelectrolyte through Coulomb interactions. Thereby, the ferroelectric PTO domains can be selectively detected using AFM.
- # Ferroelectric Domain
- # Self-Assembled Polyelectrolyte
- # Epitaxial PbTiO3 Thin Films
- # Charged Poly Acrylic Acid
- # PbTiO3
- # Nb-doped SrTiO3 Substrate
- # PbTiO3 Thin Films
- # Atomic Force Microscopy
- # Poly Allylamine Hydrochloride
- # Thin Films
