Effect of Composition and Surface Microstructure in Self-Polarized Ferroelectric Polymer Films on the Magnitude of the Surface Potential

被引：5
作者：
Kochervinskii, Valentin V. [1 ]
Buryanskaya, Evgeniya L. [1 ,2 ]
Makeev, Mstislav O. [1 ]
Mikhalev, Pavel A. [1 ]
Kiselev, Dmitry A. [2 ]
Ilina, Tatiana S. [3 ]
Lokshin, Boris V. [3 ]
Zvyagina, Aleksandra I. [4 ]
Kirakosyan, Gayane A. [4 ,5 ]
机构：
[1] Bauman Moscow State Tech Univ, Lab Technol Polymer Ferroelect, Moscow 141005, Russia
[2] Natl Univ Sci & Technol MISIS, Dept Mat Sci Semicond & Dielect, Lab Phys Oxide Ferroelect, Moscow 119049, Russia
[3] RAS, AN Nesmeyanov Inst Organoelement Cpds, Moscow 119049, Russia
[4] RAS, AN Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia
[5] RAS, NS Kurnakov Inst Gen & Inorgan Chem, Lab Coordinat Chem Alkali & Rare Met, Moscow 119991, Russia
来源：
NANOMATERIALS | 2023年 / 13卷 / 21期
关键词：
polymers; ferroelectric materials; microstructure; piezo force microscopy; self-polarization; surface potential; biomedical; technology; scientific research; electricity; THIN-FILMS;
D O I：
10.3390/nano13212851
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The values of the surface potentials of two sides of films of polyvinylidene fluoride, and its copolymers with tetrafluoroethylene and hexafluoropropylene, were measured by the Kelvin probe method. The microstructures of the chains in the surfaces on these sides were evaluated by ATR IR spectroscopy. It was found that the observed surface potentials differed in the studied films. Simultaneously, it was observed from the IR spectroscopy data that the microstructures of the chains on both sides of the films also differed. It is concluded that the formation of the surface potential in (self-polarized) ferroelectric polymers is controlled by the microstructure of the surface layer. The reasons for the formation of a different microstructure on both sides of the films are suggested on the basis of the general regularities of structure formation in flexible-chain crystallizing polymers.
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页数：17
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