Nanometer Gap in Electromechanical Converters—A Way to Achieve an Extremely High Energy Density

Micromachines

EdwardG. Kostsov¹  IgorL. Baginsky¹ 

[1] Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;

关键词: energy converter;    electrostatics;    nanogap;    ferroelectric;    limiting energy density;   

DOI  :  10.3390/mi10110746

来源: DOAJ

【 摘 要 】

The analysis of electromechanical energy converters based on metal-thin film ferroelectric (with a large specific capacitance)-nanogap-moving electrode structures was performed. It was shown that the density of the energy being converted and its absolute value increase with the decreasing gap value between the surfaces of the ferroelectric and the metallic moving electrode up to nanometer values. The effects limiting the growth of this energy were established, and the limiting value of the energy density transformed in the nanogap of these structures was determined to be about 1.6 × 10¹⁰ J/m³, which is 4 orders of magnitude higher than the energy density in inductive converters. The experimental verification of this model based on the data for micromotors fabricated on these structures is given.

【 授权许可】

Unknown