Ferroelectric-like organic–inorganic interfaces,Journal of Materials Chemistry C

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Ferroelectric-like organic–inorganic interfaces
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2020-09-28 , DOI: 10.1039/d0tc03384g
Linlin Yang _{1,

2,

3,

4,

5} , Jianxin Guo _{1,

2,

3,

4,

5} , Jian Li _{1,

2,

3,

4,

5} , Jun Yan _{1,

2,

3,

4,

5} , Kunpeng Ge _{1,

2,

3,

4,

5} , Jiayue Jiang _{1,

2,

3,

4,

5} , Han Li _{6,

7,

8,

9} , Benjamin S. Flavel _{6,

7,

8,

9} , Baoting Liu _{1,

2,

3,

4,

5} , Jianhui Chen _{1,

2,

3,

4,

5}

Affiliation

Since its discovery ferroelectricity has been an intriguing phenomenon in materials science and is usually observed in a single ferroelectric material. In this study, it is shown that ferroelectriciy can also occur at the interface between two non-ferroelectric materials, a polymer and silicon, and interfacial ferroelectric-like behavior is demonstrated. Sulfonic functional groups on the polymer establish electrochemically switchable dipoles, which are considered to be the origin of ferroelectric polarization and are observed in an atom-thick polar region at the interface. Above room temperature polarization hysteresis loops with long term stability, thermal stability, reliable switching reproducibility and long information retention directly on rigid and flexible silicon substrates are demonstrated. This exotic ferroelectric phenomenon extends polarization switching beyond singular materials and has the potential to advance the design of new ferroelectric devices.

中文翻译：

类似于铁电的有机-无机界面

自从发现铁电以来，铁电一直是材料科学界的一个有趣现象，通常在单一铁电材料中可以观察到。在这项研究中，表明铁电也可能出现在两种非铁电材料（聚合物和硅）之间的界面上，并证明了类似铁电的界面行为。聚合物上的磺酸官能团建立了电化学可切换的偶极子，这些偶极子被认为是铁电极化的起源，并且在界面处原子厚的极性区域中观察到。高于室温的极化磁滞回线具有长期稳定性，热稳定性，可靠的开关再现性以及直接在刚性和柔性硅基板上保持长时间信息的特性。

更新日期：2020-10-17

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