Dissemin is shutting down on January 1st, 2025

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American Institute of Physics, Applied Physics Letters, 22(102), p. 223503

DOI: 10.1063/1.4809596

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Understanding polarization vs. charge dynamics effects in ferroelectric-carbon nanotube devices

Journal article published in 2013 by Cédric Blaser, Vincent Esposito ORCID, Patrycja Paruch
This paper is available in a repository.
This paper is available in a repository.

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Abstract

To optimize the performance of multifunctional carbon nanotube-ferroelectric devices, it is necessary to understand both the polarization and charge dynamics effects on their transconductance. Directly comparing ferroelectric Pb(Zr0.2Ti0.8)O3 and dielectric SrTiO3 field effect transistors, we show that the two effects strongly compete, with transient charge dynamics initially masking up to 40% of the ferroelectric field effect. For applications, it is therefore crucial to maximize the quality of the ferroelectric film and the interface with the carbon nanotube to take full advantage of the switchable polarization.