Issue 11, 2016

Organic ferroelectric/semiconducting nanowire hybrid layer for memory storage

Abstract

Ferroelectric materials are important components of sensors, actuators and non-volatile memories. However, possible device configurations are limited due to the need to provide screening charges to ferroelectric interfaces to avoid depolarization. Here we show that, by alternating ferroelectric and semiconducting nanowires over an insulating substrate, the ferroelectric dipole moment can be stabilized by injected free charge carriers accumulating laterally in the neighboring semiconducting nanowires. This lateral electrostatic coupling between ferroelectric and semiconducting nanowires offers new opportunities to design new device architectures. As an example, we demonstrate the fabrication of an elementary non-volatile memory device in a transistor-like configuration, of which the source–drain current exhibits a typical hysteretic behavior with respect to the poling voltage. The potential for size reduction intrinsic to the nanostructured hybrid layer offers opportunities for the development of strongly miniaturized ferroelectric and piezoelectric devices.

Graphical abstract: Organic ferroelectric/semiconducting nanowire hybrid layer for memory storage

Supplementary files

Article information

Article type
Paper
Submitted
04 1 2016
Accepted
19 2 2016
First published
22 2 2016

Nanoscale, 2016,8, 5968-5976

Organic ferroelectric/semiconducting nanowire hybrid layer for memory storage

R. Cai, H. G. Kassa, R. Haouari, A. Marrani, Y. H. Geerts, C. Ruzié, A. J. J. M. van Breemen, G. H. Gelinck, B. Nysten, Z. Hu and A. M. Jonas, Nanoscale, 2016, 8, 5968 DOI: 10.1039/C6NR00049E

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