Ferroelectric switching of vinylidene and trifluoroethylene copolymer thin films on au electrodes modified with self-assembled monolayers

5Citations
Citations of this article
13Readers
Mendeley users who have this article in their library.

Abstract

The ferroelectric switching characteristics of a vinylidene fluoride and trifluoroethylene copolymer were significantly changed via the chemical modification of a gold electrode with an alkanethiol self-assembled monolayer (SAM). The alkanethiol SAM-Au electrode successfully suppressed the leakage current (dark current) from the electrode to the bulk ferroelectric. Smaller leakage currents led to the formation of an effective electric field in the bulk ferroelectric. At switching cycles ranging from 10 to 100 kHz, significant changes in the ferroelectric properties were observed. At 100 kHz, a remanent polarization (Pr) of 68 mC·m-2 was measured, whereas a very small Pr value of 2.4 mC·m-2 was measured for the sample without a SAM. The switching speed of the SAM-Au electrode is as twice as fast as that of the unmodified electrode. A large potential barrier was formed via the insertion of a SAM between the Au electrode and the ferroelectric, effectively changing the ferroelectric switching characteristics.

Cite

CITATION STYLE

APA

Tsutsumi, N., Kitano, T., Kinashi, K., & Sakai, W. (2014). Ferroelectric switching of vinylidene and trifluoroethylene copolymer thin films on au electrodes modified with self-assembled monolayers. Materials, 7(9), 6367–6376. https://doi.org/10.3390/ma7096367

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free