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Emergence of ambient temperature ferroelectricity in meso-tetrakis(1- methylpyridinium-4-yl)porphyrin chloride thin films

Emergence of ambient temperature ferroelectricity in meso-tetrakis(1- methylpyridinium-4-yl)porphyrin chloride thin films
Emergence of ambient temperature ferroelectricity in meso-tetrakis(1- methylpyridinium-4-yl)porphyrin chloride thin films

Here, we demonstrate that the meso-tetrakis(1-methylpyridinium-4-yl) porphyrin chloride, [H2TMPyP]4+Cl4, with a face-to-face orientation directed along a single direction displays ferroelectric properties at room temperature. This is attributed to its spontaneous polarization, due to an extensive hydrogen-bonded network. From C-V measurements, a remnant polarization of approximately 0.5 μC cm-2 was estimated for pristine porphyrin film, which increases linearly up to about 1.7 μC cm-2 after applying 2 V at the top electrode and further to 9.6 μC cm-2 after 5 V positive poling. This large - for practical utilization - level of remnant polarization of [H2TMPyP] 4+Cl4 makes it promising for future applications.

0003-6951
1-6
Vasilopoulou, Maria
aad1381e-d091-4090-8c7c-b74bed22393d
Dimitrakis, Panagiotis
06b57cec-e52f-48f9-b941-d899303b1b6b
Georgiadou, Dimitra G.
84977176-3678-4fb3-a3dd-2044a49c853b
Velessiotis, Dimitrios
3a6c3eda-0289-4f56-b034-b8966208ec6e
Papadimitropoulos, Georgios
b4f1ecba-cc8a-4882-99a5-a29354a9bca7
Davazoglou, Dimitris
a946cf5d-287a-4734-ba55-b180ab4525ed
Coutsolelos, Athanassios G.
ee1dc69e-5f00-4f79-9eb5-e5dd741fc99f
Argitis, Panagiotis
ab9c4ea6-3dd2-4e34-935d-81bfb360f358
Vasilopoulou, Maria
aad1381e-d091-4090-8c7c-b74bed22393d
Dimitrakis, Panagiotis
06b57cec-e52f-48f9-b941-d899303b1b6b
Georgiadou, Dimitra G.
84977176-3678-4fb3-a3dd-2044a49c853b
Velessiotis, Dimitrios
3a6c3eda-0289-4f56-b034-b8966208ec6e
Papadimitropoulos, Georgios
b4f1ecba-cc8a-4882-99a5-a29354a9bca7
Davazoglou, Dimitris
a946cf5d-287a-4734-ba55-b180ab4525ed
Coutsolelos, Athanassios G.
ee1dc69e-5f00-4f79-9eb5-e5dd741fc99f
Argitis, Panagiotis
ab9c4ea6-3dd2-4e34-935d-81bfb360f358

Vasilopoulou, Maria, Dimitrakis, Panagiotis, Georgiadou, Dimitra G., Velessiotis, Dimitrios, Papadimitropoulos, Georgios, Davazoglou, Dimitris, Coutsolelos, Athanassios G. and Argitis, Panagiotis (2013) Emergence of ambient temperature ferroelectricity in meso-tetrakis(1- methylpyridinium-4-yl)porphyrin chloride thin films. Applied Physics Letters, 103 (2), 1-6, [022908]. (doi:10.1063/1.4813009).

Record type: Article

Abstract

Here, we demonstrate that the meso-tetrakis(1-methylpyridinium-4-yl) porphyrin chloride, [H2TMPyP]4+Cl4, with a face-to-face orientation directed along a single direction displays ferroelectric properties at room temperature. This is attributed to its spontaneous polarization, due to an extensive hydrogen-bonded network. From C-V measurements, a remnant polarization of approximately 0.5 μC cm-2 was estimated for pristine porphyrin film, which increases linearly up to about 1.7 μC cm-2 after applying 2 V at the top electrode and further to 9.6 μC cm-2 after 5 V positive poling. This large - for practical utilization - level of remnant polarization of [H2TMPyP] 4+Cl4 makes it promising for future applications.

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More information

Accepted/In Press date: 1 June 2013
e-pub ahead of print date: 12 July 2013

Identifiers

Local EPrints ID: 439824
URI: http://eprints.soton.ac.uk/id/eprint/439824
ISSN: 0003-6951
PURE UUID: ebaa1549-870a-4cac-b6f2-590c5ce29dcb
ORCID for Dimitra G. Georgiadou: ORCID iD orcid.org/0000-0002-2620-3346

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Date deposited: 05 May 2020 16:30
Last modified: 07 Oct 2020 02:27

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Contributors

Author: Maria Vasilopoulou
Author: Panagiotis Dimitrakis
Author: Dimitrios Velessiotis
Author: Georgios Papadimitropoulos
Author: Dimitris Davazoglou
Author: Athanassios G. Coutsolelos
Author: Panagiotis Argitis

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