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Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics

Ferroelectric, pyroelectric, and piezoelectric compounds whose electric polarization properties can be controlled by external stimuli such as electric field, temperature, and pressure have various applications, including ferroelectric memory materials, sensors, and thermal energy-conversion devices....

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Autores principales: Su, Sheng-Qun, Wu, Shu-Qi, Kanegawa, Shinji, Yamamoto, Kaoru, Sato, Osamu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10566498/
https://www.ncbi.nlm.nih.gov/pubmed/37829034
http://dx.doi.org/10.1039/d3sc03432a
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author Su, Sheng-Qun
Wu, Shu-Qi
Kanegawa, Shinji
Yamamoto, Kaoru
Sato, Osamu
author_facet Su, Sheng-Qun
Wu, Shu-Qi
Kanegawa, Shinji
Yamamoto, Kaoru
Sato, Osamu
author_sort Su, Sheng-Qun
collection PubMed
description Ferroelectric, pyroelectric, and piezoelectric compounds whose electric polarization properties can be controlled by external stimuli such as electric field, temperature, and pressure have various applications, including ferroelectric memory materials, sensors, and thermal energy-conversion devices. Numerous polarization switching compounds, particularly molecular ferroelectrics and pyroelectrics, have been developed. In these materials, the polarization switching usually proceeds via ion displacement and reorientation of polar molecules, which are responsible for the change in ionic polarization and orientational polarization, respectively. Recently, the development of electronic ferroelectrics, in which the mechanism of polarization change is charge ordering and electron transfer, has attracted great attention. In this article, representative examples of electronic ferroelectrics are summarized, including (TMTTF)(2)X (TMTTF = tetramethyl-tetrathiafulvalene, X = anion), α-(BEDT-TTF)(2)I(3) (BEDT-TTF = bis(ethylenedithio)-tetrathiafulvalene), TTF–CA (TTF = tetrathiafulvalene, CA = p-chloranil), and [(n-C(3)H(7))(4)N][Fe(III)Fe(II)(dto)(3)] (dto = 1,2-dithiooxalate = C(2)O(2)S(2)). Furthermore, polarization switching materials using directional electron transfer in nonferroelectrics, the so-called electronic pyroelectrics, such as [(Cr(SS-cth))(Co(RR-cth))(μ-dhbq)](PF(6))(3) (dhbq = deprotonated 2,5-dihydroxy-1,4-benzoquinone, cth = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraaza-cyclotetradecane), are introduced. Future prospects are also discussed, particularly the development of new properties in polarization switching through the manipulation of electronic polarization in electronic ferroelectrics and electronic pyroelectrics by taking advantage of the inherent properties of electrons.
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spelling pubmed-105664982023-10-12 Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics Su, Sheng-Qun Wu, Shu-Qi Kanegawa, Shinji Yamamoto, Kaoru Sato, Osamu Chem Sci Chemistry Ferroelectric, pyroelectric, and piezoelectric compounds whose electric polarization properties can be controlled by external stimuli such as electric field, temperature, and pressure have various applications, including ferroelectric memory materials, sensors, and thermal energy-conversion devices. Numerous polarization switching compounds, particularly molecular ferroelectrics and pyroelectrics, have been developed. In these materials, the polarization switching usually proceeds via ion displacement and reorientation of polar molecules, which are responsible for the change in ionic polarization and orientational polarization, respectively. Recently, the development of electronic ferroelectrics, in which the mechanism of polarization change is charge ordering and electron transfer, has attracted great attention. In this article, representative examples of electronic ferroelectrics are summarized, including (TMTTF)(2)X (TMTTF = tetramethyl-tetrathiafulvalene, X = anion), α-(BEDT-TTF)(2)I(3) (BEDT-TTF = bis(ethylenedithio)-tetrathiafulvalene), TTF–CA (TTF = tetrathiafulvalene, CA = p-chloranil), and [(n-C(3)H(7))(4)N][Fe(III)Fe(II)(dto)(3)] (dto = 1,2-dithiooxalate = C(2)O(2)S(2)). Furthermore, polarization switching materials using directional electron transfer in nonferroelectrics, the so-called electronic pyroelectrics, such as [(Cr(SS-cth))(Co(RR-cth))(μ-dhbq)](PF(6))(3) (dhbq = deprotonated 2,5-dihydroxy-1,4-benzoquinone, cth = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraaza-cyclotetradecane), are introduced. Future prospects are also discussed, particularly the development of new properties in polarization switching through the manipulation of electronic polarization in electronic ferroelectrics and electronic pyroelectrics by taking advantage of the inherent properties of electrons. The Royal Society of Chemistry 2023-09-08 /pmc/articles/PMC10566498/ /pubmed/37829034 http://dx.doi.org/10.1039/d3sc03432a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Su, Sheng-Qun
Wu, Shu-Qi
Kanegawa, Shinji
Yamamoto, Kaoru
Sato, Osamu
Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics
title Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics
title_full Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics
title_fullStr Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics
title_full_unstemmed Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics
title_short Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics
title_sort control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10566498/
https://www.ncbi.nlm.nih.gov/pubmed/37829034
http://dx.doi.org/10.1039/d3sc03432a
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