压电式纳米发电机及其混合器件的研究进展

随着化石能源的过度使用和开采,随之而来的能源和环境问题也日益尖锐,而人们对能源的需求不减反增,因此寻求一种新型的绿色可持续能源是非常必要的。环境中的能量十分丰富,因此从环境中收集能量进行转化是十分有前景的方法。压电材料在受到外界作用发生机械变形时,能实现机械能向电能的转化,因此,压电式纳米发电机作为一种潜在的可持续、绿色能源,近年来受到广泛关注。从压电材料的分类入手,结合其制备方法、结构和性能等,对近年来一些研究成果进行了概述,详细评价了不同制备方法、结构对压电式纳米发电机压电性能的影响,并对今后发展进行了展望。

Research progress of piezoelectric nanogenerators and their hybrid devices

The energy crisis and environmental pollution from excessive use of traditional fossil fuel have been prompting a number of researchers and institutes to develop new technology,emerging mat-erials,and potential applications for green,sustainable and renewable power source.There is a rich source of energy in the environment and therefore it is very promising to collect energy from the envir-onment.The mechanical energy can be transformed into electric energy when the piezoelectric material experiences mechanical deformation due to the transfer of internal electron.Therefore,as a potential sustainable,green energy source,piezoelectric nanogenerator has received extensive attention in rec-ent years.Some research achievements in recent years were reviewed in this paper,starting from the classification of piezoelectric materials and combining with their preparation methods,structure and properties.The effects of different preparation methods and structures on piezoelectric properties of piezoelectric nano-generators were evaluated in detail.The future development was also prospected.