Study of the growth and switching kinetics on ferroelectric nanocrystals of copolymer vinylidene fluoride and trifluoroethylene on an atomic force microscope

Journal Article · Fri Mar 15 00:00:00 EDT 2013 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774513020090· OSTI ID:22156314

Lysova, O. A.; Tolstikhina, A. L.; Fridkin, V. M.; Yudin, S. G. ^[1]; Ducharme, S. ^[2]

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1. Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)
2. University of Nebraska, Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience (United States)

The growth of nanocrystals obtained from Langmuir-Blodgett films of ferroelectric copolymer consisting of 70% vinylidene fluoride and 30% trifluoroethylene has been investigated by atomic force microscopy (AFM). The radius and concentration of nanocrystals are found to depend on the annealing time of the film. A model for nanocrystal growth is proposed which yields adequate time dependences for nanocrystal size parameters. The switching kinetics of individual ferroelectric nanocrystals with an average diameter of 100-200 nm and a height of 15-20 nm has been investigated in the piezoelectric response mode. It is shown that the switching of nanocrystals has an activation character.

• OSTI ID: 22156314
• Journal Information: Crystallography Reports, Vol. 58, Issue 2; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ANNEALING
ATOMIC FORCE MICROSCOPY
COPOLYMERS
FERROELECTRIC MATERIALS
FILMS
FLUORIDES
NANOSTRUCTURES
PIEZOELECTRICITY
TIME DEPENDENCE