Novel solar power generation and energy storage double-function integrated device structure and preparation method thereof

Abstract

The invention relates to the field of solar cell power generation and energy storage, and particularly to a novel solar power generation and energy storage double-function integrated device structureand a preparation method thereof. The novel solar power generation and energy storage double-function integrated device structure comprises: a light absorption layer for generating photo-induced electrons and photo-induced holes, and at least one pair of first energy storage structure layer and second energy storage structure layer, wherein the first energy storage structure layer and the second energy storage structure layer respectively contact with the light absorption layer; and when the light absorption layer generates the photo-induced electrons and the photo-induced holes, the first energy storage structure layer generates an energy storage chemical reaction by utilizing the photo-induced electrons, and the second energy storage structure layer generates an energy storage chemical reaction by utilizing the photo-induced holes. According to the invention, the first energy storage structure layer and the second energy storage structure layer use the reduction and oxidation capabilities of photo-induced electrons and photo-induced holes at the same time to store energy, and the power generation and energy storage dual-function integrated device structure has the characteristicsof high comprehensive energy utilization efficiency and mutual promotion of charging and discharging processes.

Description

technical field [0001] The invention relates to the field of solar cell power generation and energy storage, in particular to a novel solar power generation and energy storage dual-function integrated device structure and a preparation method thereof. Background technique [0002] Although solar energy has the advantages of inexhaustible resources and clean and pollution-free, it also has a major disadvantage: intermittent, that is, the energy supply will be interrupted or fluctuated greatly due to diurnal changes or climate changes. A better way to solve this problem is to introduce an energy storage battery, that is, first store the electric energy generated by the solar cell in the energy storage battery, and then release it from the energy storage battery when electricity is needed. Energy storage batteries have been widely used in today's society when electronic products are widely popularized and penetrated into people's daily life. The biggest problem with energy stor...

AI Technical Summary

Problems solved by technology

[0002] Although solar energy has the advantages of inexhaustible resources and clean and pollution-free, it also has a major disadvantage: intermittent, that is, the energy supply will be interrupted or fluctuated greatly due to diurnal changes or climate changes

The integration of the three-electrode structure and the four-electrode structure is low. The two devices basically work independently and have little mutual influence. Large, high cost, and large energy loss, unable to take advantage of the auxiliary benefits between integrated devices

However, the three types of structural design tend to make the photo-generated electrons and photo-generated holes not effectively separated and easy to recombine at the interface, which greatly reduces the photoelectric conversion efficiency. Internal self-discharge occurs, and the separator will prevent electrons from passing through, so that the charging current needs to pass through the external circuit, which is prone to energy loss

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