Formation of nanocrystalline copolymer thin film PVDF-TrFE and its ferroelectric electron emission property.
J Nanosci Nanotechnol
; 9(2): 832-5, 2009 Feb.
Article
em En
| MEDLINE
| ID: mdl-19441402
ABSTRACT
Ferroelectric copolymer thin film PVDF-TrFE was deposited by spin coating method, and then annealed for the improved crystallization. The XRD and AFM measurements showed that as-formed PVDF-TrFE thin film was composed of the nanocrystallines with 50-80 nm in size and some amorphous phases. Meanwhile, as-formed PVDF-TrFE thin films also show a good polarization inversion property with a switch current of approximately 2.0 microA at a coercive field 40 MV/m. Electron emission testing results showed that under a continuous excitation of applied voltage pulses, PVDF-TrFE thin films exhibited an expected electron emission ability with emission current range of 0.08-0.52 microA, and the related electron emission mechanism was discussed.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article