Organic solar cell and manufacturing method thereof

Abstract

The invention discloses an organic solar cell. The organic solar cell comprises a transparent insulating substrate, a transparent anode electrode layer, a photosensitive layer, a cathode electrode layer and an organic protective layer, wherein the transparent anode electrode layer, the photosensitive layer, the cathode electrode layer and the organic protective layer are sequentially stacked on the transparent insulating substrate. A metal nano-particle layer is formed on at least one face of the cathode electrode layer, the work function value of metal nano-particles in the metal nano-particle layer is smaller than the work function value of the cathode electrode layer, the cathode electrode layer is formed by a layer of graphene thin film or double layers of graphene thin films or multiple layers of graphene thin films, the thickness of the cathode electrode layer ranges from 0.5 nm to 10 nm, and the thickness of the photosensitive layer ranges from 100 nm to 1000 nm. According to a manufacturing method of single-layer solar cell devices, the solar cell devices are sequentially formed on all layers, all the layers are tightly and firmly connected, the performance of the solar cell devices is stable, production efficiency is high, production cost is reduced, and the solar cell is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to an organic solar cell and a preparation method thereof. Background technique [0002] A solar cell is a photovoltaic device that converts light energy into electricity. Since Bell Laboratories reported inorganic solar cells with an efficiency of 4% in 1954, solar cells have developed rapidly in the past half a century, and a "green energy revolution" has been set off worldwide. After the 1990s, photovoltaic devices such as gallium arsenide and cadmium telluride have been developed in the family of inorganic solar cells. However, until today, the high cost is the primary problem limiting the large-scale application of inorganic semiconductor solar cells. However, the cost problem is mainly caused by the inorganic materials themselves, so only the real low-cost green energy is an effective way to solve the energy problem. [0003] The research on organic solar ce...

AI Technical Summary

Problems solved by technology

It is obvious that the introduction of bilayer heterostructures greatly increases the complexity of organic solar cell devices, and since the quality of the heterojunction structure is crucial to the output of the whole cell, the control of heterojunction growth requires relatively harsh

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