Park Chanho, Lee Kyuho, Koo Min, Park Cheolmin
Department of Materials Science and Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Adv Mater. 2021 Nov;33(47):e2004999. doi: 10.1002/adma.202004999. Epub 2020 Dec 18.
Soft ferroelectrics based on organic and organic-inorganic hybrid materials have gained much interest among researchers owing to their electrically programmable and remnant polarization. This allows for the development of numerous flexible, foldable, and stretchable nonvolatile memories, when combined with various crystal engineering approaches to optimize their performance. Soft ferroelectrics have been recently considered to have an important role in the emerging human-connected electronics that involve diverse photoelectronic elements, particularly those requiring precise programmable electric fields, such as tactile sensors, synaptic devices, displays, photodetectors, and solar cells for facile human-machine interaction, human safety, and sustainability. This paper provides a comprehensive review of the recent developments in soft ferroelectric materials with an emphasis on their ferroelectric switching principles and their potential application in human-connected intelligent electronics. Based on the origins of ferroelectric atomic and/or molecular switching, the soft ferroelectrics are categorized into seven subgroups. In this review, the efficiency of soft ferroelectrics with their distinct ferroelectric characteristics utilized in various human-connected electronic devices with programmable electric field is demonstrated. This review inspires further research to utilize the remarkable functionality of soft electronics.
基于有机及有机-无机杂化材料的软铁电体因其电可编程性和剩余极化而备受研究人员关注。当与各种晶体工程方法相结合以优化其性能时，这使得众多柔性、可折叠和可拉伸的非易失性存储器得以发展。近来，软铁电体在涉及多种光电器件的新兴人机互联电子领域被认为具有重要作用，特别是那些需要精确可编程电场的器件，如触觉传感器、突触器件、显示器、光电探测器以及用于便捷人机交互、人类安全和可持续性的太阳能电池。本文全面综述了软铁电材料的最新进展，重点介绍了其铁电开关原理及其在人机互联智能电子中的潜在应用。基于铁电原子和/或分子开关的起源，软铁电体被分为七个亚组。在本综述中，展示了具有独特铁电特性的软铁电体在各种具有可编程电场的人机互联电子设备中的应用效率。本综述激发了进一步利用软电子卓越功能的研究。
