1. Towards Optimizing Surface Coverage for PVP-Assisted PZT Ferroelectric Thick Film.
- Author
-
Parui, Jayanta, R, Mani, Jose, Jain, Parwin, Shama, Varadarajan, E., and Natarajan, V.
- Subjects
CENTRIFUGAL force ,SPIN coating ,MOLECULAR weights ,SURFACE cracks ,THICK films ,FERROELECTRIC polymers ,POVIDONE - Abstract
130,000 g/mol molecular weight of polyvinylpyrrolidone (PVP) was purposed to prepare PZT sol desiring the thick film (≥1.0 µm) deposition on Pt(111)/TiO
2 /SiO2 /Si. Centrifugal force and the spilling of sol during spin coating were found to control the cracks and surface coverage of the films. A rotation-dependent typical pattern formation at the central part of the substrate was observed and better coverage was observed on gel drying 60 °C than 125 °C. Though the remnant polarization (2Pr) of 21.4 µC/cm2 was recorded at 100 Hz for 2.1 µm, it is 41.8 µC/cm2 for 1.06 µm thick films. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF