Low-temperature curing method and system of heterojunction solar cell

Abstract

The invention discloses a low-temperature curing method and system for a heterojunction solar cell, and relates to the technical field of solar cells, and the system comprises a production monitoring module, a controller, a product detection module, a safety evaluation module and a personnel distribution module. The production monitoring module is used for collecting internal environment data of production equipment and sending the collected internal environment data to the production analysis module; the production analysis module is used for performing safety analysis on the received internal environment data in combination with a safety evaluation model and judging whether the internal environment of the production equipment needs to be adjusted so as to ensure the consistency of the heterojunction solar cell curing environment; and the personnel distribution module is used for carrying out personnel distribution on the production equipment in combination with the curing record of the low-temperature curing process executed by the working personnel, and selecting the working personnel with the minimum curing deviation value as the operator of the production equipment, so that the unskilled operation of the working personnel is avoided, the production of unqualified products is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a low-temperature curing method and system for heterojunction solar cells. Background technique [0002] Heterojunction solar cells are a high-efficiency solar cell production technology that combines amorphous silicon and crystalline silicon solar cells to complement each other. The heterojunction solar cell uses a-Si to form a PN junction, and the entire process can be completed at a low temperature below 200°C. Compared with the formation temperature (900°C) of the original thermal diffusion type crystalline solar cell, it greatly reduces the manufacturing process. Process temperature. Due to the characteristics of this symmetrical structure and low-temperature process, the deformation and thermal damage of the silicon wafer caused by heat or film formation are reduced, which is extremely beneficial to the realization of wafer thinning and high efficiency, and has industr...

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Problems solved by technology

[0003] However, in the low-temperature curing process of heterojunction cells, there is a lack of effective monitoring system. When the production environment changes greatly, it cannot be reminded in time, which affects the curing efficiency of heterojunction cells. At the same time, it is impossible to reasonably allocate corresponding work according to the curing bias value. Personnel perform the low-temperature curing process to avoid unskilled employees and reduce the generation of unqualified products; for this reason, we propose a low-temperature curing method and system for heterojunction solar cells

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