CIGS glass substrate coating cleaning system

Abstract

The invention relates to a CIGS glass substrate coating cleaning system. The system comprises a conveying-positioning mechanism, a liquid dropping mechanism, a cloth roll mechanism, a jacking-cleaningmechanism and a measurement mechanism, wherein a device capable of cleaning a CIGS glass substrate coating is formed by mutually combining and connecting the above mechanisms. The cleaning system adopting the structure achieves cleaning and wiping of the coating overflowing to the back side in a substrate glass front-arranging process of a CIGS glass substrate, meets the follow-up process requirements of the glass substrate, achieves automatic feeding, cleaning, measurement and discharging process and does not need manual intervention for substrate conveying and positioning, cloth roll supply, cleanout fluid dropping and sprinkling, cleaning process and result measurement, and the whole process takt is quick and stable. The measurement device is directly attached to the surface of the CIGS glass substrate for measurement after cleaning, it is ensured that results are accurate, the operation is quick and convenient, the working efficiency is improved, the CIGS yield is greatly improved, and the labor intensity of workers in a site is reduced.

Description

technical field [0001] The present invention relates to the field of automation, in particular to the field of cleaning CIGS glass substrates, in particular to a coating cleaning system for CIGS glass substrates. Background technique [0002] At present, academia and industry generally believe that the development of solar cells has entered the third generation of thin-film solar cells. Copper indium gallium selenide thin-film solar cells (CIGS) is a new type of solar cell developed in the late 1980s. It is used as An important member of multi-component thin-film batteries, it has become one of the research hotspots in the global photovoltaic field due to its superior comprehensive performance. The typical multilayer film structure of CIGS includes metal gate, anti-reflection film, window layer (ZnO), transition layer, light absorption layer, back electrode and glass substrate. During the preparation process, CIGS films are generally grown on Mo-coated glass substrates. Whe...

AI Technical Summary

Problems solved by technology

During the preparation process, the CIGS thin film is generally grown on the glass substrate coated with Mo. When the ZnO film layer is sputtered on the substrate, the crystal grains will be drilled on the substrate through the pre-process. Holes penetrate to the other side of the glass substrate, and these overflowing grain film layers will cause short circuits in battery devices, seriously affect the performance of thin-film batteries, and even cause battery components to be scrapped

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