Solar cell, electrode structure, cell module, power generation system and preparation method

Abstract

The invention discloses an electrode structure of a solar cell, which belongs to the technical field of photovoltaic cells and comprises a conductive layer, a seed layer is arranged at one end, connected to the solar cell, of the conductive layer, and the width of the seed layer is smaller than that of the conductive layer; by guaranteeing that the width of the conducting layer is larger than that of the seed layer, low line resistance is achieved, meanwhile, the risk that the conducting layer diffuses towards the solar cell is avoided, the photoelectric conversion efficiency of the cell is guaranteed, and the invention further discloses the solar cell, a cell assembly and a power generation system which apply the electrode structure.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic cells, and particularly relates to a solar cell, an electrode structure, a battery assembly, a power generation system and a preparation method. Background technique [0002] A solar cell is an optoelectronic semiconductor sheet that uses sunlight to generate electricity directly, also known as "solar chip" or "photocell". As long as it is illuminated by a certain illumination condition, it can output voltage instantly and in the case of a loop. generate current. In physics, it is called solar photovoltaic (Photovoltaic, abbreviated as PV), referred to as photovoltaic. [0003] The solar cells currently on the market have structures such as figure 1 As shown, it includes a substrate 1000 with a conductive film layer 1001 on the substrate 1000, but this structure easily causes the material molecules in the conductive film layer 1001 to diffuse into the substrate 1000 to form composite pairs,...

AI Technical Summary

Problems solved by technology

[0003] The solar cells currently on the market have a structure such as figure 1 As shown, the substrate 1000 is included, and the conductive film layer 1001 is provided on the substrate 1000, but this structure easily causes the material molecules in the conductive film layer 1001 to diffuse into the substrate 1000, thereby forming recombination pairs, resulting in a decrease in photoelectric efficiency.

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