Apparatus and method for monitoring the process of fabricating solar cells

A monitoring apparatus comprising:

• a detection assembly configured to detect a concentration value of at least one chemical component in a reaction liquid, during a reaction process being performed within a chamber for a solar cell substructure;
• and
• a control assembly coupled to said detection assembly,
• wherein said control assembly is configured to:
• determine whether the detected concentration value is at a predefined threshold concentration level or within a predefined concentration range for the at least one chemical component;
• modify the concentration of the at least one chemical component within the reaction liquid in the chamber, during the reaction process, when the detected concentration value is different from the predefined threshold concentration level or different from the predefined concentration range;
• adjust the concentration of the chemical component to the predefined range;
• and
• return the reaction liquid back into the chamber.

A solar cell fabrication system comprising:

• a plurality of chambers configured to receive a solar cell substructure and to perform a reaction process on the solar cell substructure,
• wherein said chambers contains at least one reaction liquid that includes at least one chemical component;
• and
• a monitoring apparatus coupled to said chambers, wherein said monitoring apparatus comprises:
• a detection assembly configured to detect a concentration value of the at least one chemical component in at least one chamber during the reaction process, and
• a control assembly coupled to said detection assembly,
• wherein said control assembly is configured to:
• determine whether the detected concentration value is at a predefined threshold concentration level or within a predefined concentration range for the at least one chemical component;
• and
• modify the concentration of the at least one chemical component within the reaction liquid that flows out of the chambers, during the reaction process, when the detected concentration value is different from the predefined threshold concentration level or different from the predefined concentration range;
• pump the modified reaction liquid back into the corresponding chambers.