PVDF Electron Emitter by Reversed Polarization Method

Kazuaki OMURA

IEICE TRANSACTIONS on Electronics   Vol.E87-C    No.12    pp.2103-2107
Publication Date: 2004/12/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Organic Molecular Electronics)
Category: Evaluation Methods and Characterization of Organic Materials
electron emission,  PVDF,  ferroelectric substance,  polarization inversion,  

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Electron emission from PVDF (polyvinylidene-fluoride) ferroelectric substance (thickness: 40 µm) by polarization inversion was realized experimentally with using about 1nm thick C-Au-S semiconductive layer on the surface of a tooth-type electrode. After polarization of the PVDF, a negative impulse voltage (-2400 V with 1-10 ns of wave front and 10-100 ms of wave tail) with a voltage higher than a coercive voltage was applied to the flat-type electrode on the reverse side of the PVDF surface in a vacuum. Then the emitted electrons were detected with using a probe in front of the tooth-type electrode. The detected charge was 6.110-12C.