| AVS 66th International Symposium & Exhibition | |
| Thin Films Division | Thursday Sessions |
| Session TF-ThP |
| Session: | Thin Films Poster Session |
| Presenter: | Ashley S. Dale, Indiana University Purdue University Indianapolis |
| Authors: | A.S. Dale, Indiana University Purdue University Indianapolis A. Mosey, Indiana University Purdue University Indianapolis J. Soruco, Indiana University Purdue University Indianapolis R. Cheng, Indiana University Purdue University Indianapolis |
| Correspondent: | Click to Email |
Improved fabrication of poly(vinylindene fluoride)-hexafluropropylene (PVDF-HFP) thin films is of particular interest due to the high electric coercivity found in the beta-phase structure of the thin film. For example, ongoing studies of ferroelectric-spin crossover coupling using x-ray spectroscopy imply the ferroelectric-spin coupling would benefit from a better ferroelectric response. Langmuir-Blodgett (LB) deposition and Langmuir-Schaffer (LS) deposition methods create a beta-phase dominant PVDF-HFP thin film when the deposition is followed by annealing. However, applications for PVDF-HFP thin films exist in organic spintronic devices where annealing is prohibited by other materials in the device heterostructure. We show that it is possible to obtain high-quality, beta-phase dominant PVDF-HFP thin films using a modified approach to LB deposition and without the use of annealing or additives. Samples implement a unique step design with a bottom electrode of copper and aluminum and a top electrode of gold or aluminum. This design allows a single thin film sample to be characterized using scanning electron microscopy, atomic force microscopy, X-ray diffraction, and electrical hysteresis measurements.