NDLI: Effect of thermal annealing on ferroelectric domain structures in poly(vinylidene-fluoride-trifluorethylene) Langmuir-Blodgett thin films

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Effect of thermal annealing on ferroelectric domain structures in poly(vinylidene-fluoride-trifluorethylene) Langmuir-Blodgett thin films

Content Provider	Semantic Scholar
Author	Xiao, Zhiyong Hamblin, James Poddar, Shashi Ducharme, Stephen Paruch, Patrycja
Copyright Year	2014
Abstract	We report a piezo-response force microscopy study of the effect of thermal annealing on ferroelectric domain structures in 6 to 20 monolayer (11 to 36 nm) polycrystalline poly(vinylidene-fluoride-trifluorethylene) thin films prepared using the Langmuir-Blodgett approach. Stripe-shape domains have been created at room temperature and subjected to thermal annealing at progressively higher temperatures up to the ferroelectric Curie temperature TC of approximately 110 °C. The static configuration of the domain walls exhibits no appreciable temperature dependence after thermal annealing, with the domain-wall roughness exponent ζ ranging from 0.4 to 0.5. Above 80 °C, we observed spontaneous polarization reversal at randomly scattered local sites in both polarization states. The number of domain nucleation centers increases rapidly as a function of temperature. We compared the thermally driven domain formation in ferroelectric polymers with those observed in ferroelectric oxides and attributed the difference to ...
Starting Page	066819
Ending Page	066819
Page Count	1
File Format	PDF HTM / HTML
DOI	10.1063/1.4891396
Volume Number	116
Alternate Webpage(s)	http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1094&context=physicsducharme
Alternate Webpage(s)	https://doi.org/10.1063/1.4891396
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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