Organic solar battery and manufacturing method thereof

Abstract

The invention discloses an organic solar battery and a manufacturing method thereof. The organic solar battery consists of a first electrode, a second electrode, a photoactive layer, an electronic transmission layer and a hole transport layer, wherein a convex or concave nanostructure is formed on the surface of the electronic transmission layer or that of the hole transport layer by soft-nano imprinting and forms a convex-concave complementary light trapping structure with the photoactive layer; and the convex-concave complementary light trapping structure can effectively increase the absorption to light within a wide spectrum range from ultraviolet light to infrared light, and thus the conversion efficiency of the organic solar battery is increased. The manufacturing method has the advantages of high fidelity, one-step forming property, low cost and the like as well as has favorable actual application value.

Description

technical field [0001] The invention relates to the field of solar cell manufacturing, and specifically designs an organic solar cell with a light-filled structure and a manufacturing method thereof. Background technique [0002] With the continuous depletion of main energy sources - fossil fuels (coal, oil, natural gas, etc.) and the increasingly serious environmental pollution, energy issues have become one of the important issues facing society today. This has prompted researchers to turn their attention to clean and renewable energy. Because of its "inexhaustible and inexhaustible" solar energy is a real "green" energy, it has become an energy strategy for sustainable development of governments around the world. Currently used solar cells are mainly made of inorganic materials such as silicon or rare metal alloys. [0003] The organic solar cell is a new type of solar cell developed in the 1990s, which uses organic semiconductors as active materials for photoelectric c...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this technology is that the direct contact between the metal nano film and the photovoltaic layer is easy to affect the electrical properties of the solar cell device resistance, open circuit voltage, and fill factor.

But the disadvantage of this technology is: but its preparation method is limited to silicon solar cells, not suitable for the production of organic solar cells

However, the disadvantages of this technology are: due to the randomness and uncontrollability of the distribution of metal nanoparticles, the instability of the efficiency improvement is caused, and the surface plasmon effect is not obvious in the near ultraviolet and visible light bands.

This technology increases the absorption and utilization of light by components, but the disadvantage of this technology is that there is no light-trapping structure inside the single cell, and the cone-shaped structure of the single cell cannot completely absorb scattered light, and there is a problem of light leakage

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