A multi-modal-based perovskite laser scribing precise regulation method and system

By employing a laser time control method based on multimodal image fusion and a five-dimensional lookup table, the problem of insufficient laser scribing accuracy in perovskite photovoltaic modules was solved, achieving precise scribing and improving the electrical performance and production efficiency of the cells.

CN121892874BActive Publication Date: 2026-06-05SHENZHEN MINGCHUANG INTELLIGENT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN MINGCHUANG INTELLIGENT EQUIP CO LTD
Filing Date
2026-03-26
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies struggle to effectively control the precision of laser scribing in the monolithic integration fabrication of perovskite photovoltaic modules, particularly the accuracy of scribing depth and width, leading to a decrease in cell series efficiency and yield.

Method used

By employing multimodal image fusion technology, combining ultraviolet, visible, and near-infrared images, a three-dimensional fused image is generated. Through a five-dimensional lookup table and machine learning model, the laser power and focus are adjusted in real time to achieve precise line drawing.

Benefits of technology

It improves the consistency of scribing depth and width, ensures scribing accuracy, reduces material waste and production costs, and enhances the electrical isolation and connection performance of the battery.

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Abstract

The embodiment of the application provides a kind of based on multimodal's perovskite laser scribe precision regulation method and system, the method comprises: obtaining the multispectral image of perovskite substrate;Wherein, multispectral image includes ultraviolet image, visible light image and near-infrared image;Based on ultraviolet image, visible light image and near-infrared image, fusion processing is carried out, and three-dimensional fusion image is obtained;Based on the preset light intensity query table and three-dimensional fusion image, laser time control chart is generated;Wherein, each pixel in laser time control chart indicates the time required for scribing pixel depth under fixed laser power and fixed laser focusing degree;Based on laser time control chart and height ranging, power adjustment is carried out, and scribing is completed.The above scheme can improve the consistency of scribing depth and width, and then improve the scribing precision.
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