Manufacturing method of solar cell

Abstract

The invention discloses a manufacturing method of a solar cell. The manufacturing method of the solar cell comprises the following steps: treating a silicon wafer; coating the treated silicon wafer with a passivation layer solution and a PEDOT:PSS aqueous solution in a spinning way; and performing evaporation to obtain the solar cell, wherein the passive layer solution is a titanium oxide precursor solution; and the titanium oxide precursor solution is prepared by the following steps: 1, dispersing titanium isopropoxide in an isopropanol solution to be diluted, and stirring the solution in order that the titanium isopropoxide is uniformly dispersed to obtain a solution I; 2, diluting a hydrochloric acid solution with isopropanol, dropwise adding the diluted hydrochloric acid solution into the solution I, and stirring the mixed solution to obtain a solution II; and coating the treated silicon wafer with the prepared solution II in a spinning way. The manufacturing method is simple in manufacturing process, and the manufactured solar cell has high physical performance.

Description

technical field [0001] The invention relates to the technical field of photoelectric devices, in particular to a method for preparing a solar cell. Background technique [0002] Energy is the driving force for the development of human society. With population growth and economic development, energy consumption will more than double by mid-century. Most of the energy currently used comes from fossil fuels, and the proportion of other energy sources is relatively small. However, the amount of fossil fuels is limited, difficult to regenerate, and their use will cause huge pollution to the environment. Therefore, it has become a global consensus to change the energy structure, use clean new energy, and protect the earth. The current clean energy mainly includes hydrogen energy, biomass energy, solar energy and wind energy. Among them, solar energy is the energy radiated to the outside world by nuclear fusion inside the sun. The energy it provides to the earth for one hour can...

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Problems solved by technology

However, the above-mentioned methods generally require more complex processes to achieve effective passivation of the silicon surface, which requires high equipment and relatively high prices.

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