Friction nanometer generator and preparation method thereof

Abstract

The invention discloses a friction nanometer generator and a preparation method thereof. The preparation method comprises the following steps: providing a metal electrode layer; preparing a lanthanum zirconium oxide intermediate dielectric layer on one side of the metal electrode layer by adopting a spin-coating method; preparing an electronegative friction layer on one side, deviating from the metal electrode layer, of the lanthanum zirconia intermediate dielectric layer by adopting a spin-coating method; providing a substrate; and preparing an electropositive friction layer on the back surface of the substrate, wherein the electric positive friction layer is arranged between the electric negative friction layer and the substrate, and a preset distance is arranged between the electric positive friction layer and the electric negative friction layer. According to the technical scheme, the zirconium lanthanum oxide intermediate dielectric layer and the electric negative friction layer are prepared through the spin-coating method, so the preparation process of the friction nano-generator is simple and controllable; therefore, low-cost and batch production of the friction nanometer generator is realized. Meanwhile, the lanthanum zirconium oxide intermediate dielectric layer is added, so the charge output characteristic of the friction nano generator is also improved, and the charge decay time is also prolonged.

Description

technical field [0001] The embodiments of the present invention relate to the field of nano energy technology, in particular to a friction nano generator and a preparation method thereof. Background technique [0002] The birth of the Tribo electric nano generator (TENG) provides the basis for the development of the power network of the intelligent Internet of Things, and how to further improve the electrical output performance of TENG from the perspective of materials to meet different application requirements is an urgent need in the current field. key issues to be resolved. [0003] The surface charge density of friction materials is positively correlated with the average output power and energy conversion efficiency. Therefore, a lot of research is devoted to improving the surface charge density. Traditional methods include physical / chemical modification of friction materials, increasing the effective contact area, artificial ion implantation, and adding functional laye...

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Problems solved by technology

Some studies have shown that adding a functional intermediate layer to the friction layer and the electrode layer can enhance the induced charge, improve the output performance of TENG and prolong the charge decay time, but the current methods for preparing the intermediate layer are mostly filled with high dielectric constant nanoparticles and organic compounds The mixture of metals or metal oxides, sputtering metal or metal oxides, coating organic polymer layers, etc., the above methods are limited by the complexity of material synthesis steps, high equipment and production costs, and cannot meet the needs of large-scale and low-cost industrial production

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