Manufacturing method of solar cell

A technology of solar cells and conductive films, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of high equipment requirements and high prices, achieve low equipment requirements, less harm to the body and the environment, and improve short-circuit current and open-circuit voltage Effect

Inactive Publication Date: 2016-11-30
SUZHOU UNIV
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  • Abstract
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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.

Method used

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  • Manufacturing method of solar cell
  • Manufacturing method of solar cell
  • Manufacturing method of solar cell

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Embodiment

[0029] The steps of a method for preparing a solar cell provided in this embodiment are as follows:

[0030] (1) Clean the silicon wafer and etch the structure; the specific steps include: 1. Make the resistance value 0.05-0.1Ω / cm 2 After cleaning the silicon wafer, soak it in the mixed solution of 0.2M AgNO3 and 4.8M HF for 5 minutes, and then clean it with deionized water; 2. Soak the treated silicon wafer in concentrated nitric acid for 5 minutes, take it out, wash and dry it 3. Submerge the treated silicon wafer in the HF solution for 2 minutes, and then place it in a 1% tetramethylammonium hydroxide solution for etching for 40 seconds. The present invention uses silicon-organic hybrid solar cells as battery implementation examples, and the scope of solar cells is not limited to silicon-organic hybrid solar cells, including all silicon-based solar cells, solar cells such as monocrystalline silicon, polycrystalline silicon, and thin-film silicon.

[0031] (2) Preparation o...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K30/00Y02E10/549Y02P70/50
Inventor 孙宝全刘玉强宋涛
Owner SUZHOU UNIV
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