Molecular ferroelectrics (MOFEs) with excellent piezoelectricity are highly desirable for their easy and environmentally friendly processing, light weight, low processing temperature, and mechanical flexibility. However, although 100 years have passed since the discovery of the ferroelectric effect in 1920, MOFEs with a piezoelectric coefficient comparable to those of the most widely used piezoelectric ceramics, such as barium titanate (∼190 pC N⁻¹), have rarely been found. Only in recent years has this situation changed. A series of high-performance piezoelectric MOFEs have been designed and synthesized, approaching or even exceeding some inorganic piezoelectric ceramics. Reviewing on the basis of piezoelectric MOFEs reported, we summarize several methods and strategies to synthesize performance-enhanced and application-aimed piezoelectric MOFEs, with potential as candidates for next-generation medical, micromechanical, and biomechanical devices.

中文翻译：

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分子铁电体压电性的最新进展

具有良好的压电性的分子铁电体（MOFE）因其易于加工，对环境友好，重量轻，加工温度低和机械柔韧性而非常受欢迎。然而，尽管自1920年发现铁电效应以来已经过去了100年，但MOFE的压电系数可与最广泛使用的压电陶瓷相媲美，例如钛酸钡（〜190 pC N ^-1），很少被发现。这种情况直到最近才改变。已经设计和合成了一系列高性能压电MOFE，其接近甚至超过了一些无机压电陶瓷。在报告的压电MOFE的基础上，我们总结了几种合成性能增强和应用为目标的压电MOFE的方法和策略，它们有可能成为下一代医疗，微机械和生物机械设备的候选者。