Aurora’s Decima Gemini Bifacial Solar Cell Optimization System

Product Brief: Aurora Solar Technologies has introduced an enhanced version of its Decima inline measurement system for quality control of bifacial solar cells during production. Bifacial solar cells have an open and active backside which enables collection of reflected light available from the earth, rooftops, etc. generating up to 25% more energy than traditional cells.

Product Feature: The Decima Gemini product is designed as a unit to fit above and below a wafer conveyor, and measures 100 percent of wafers at full production line speeds. Decima Gemini system is managed and controlled as a unit by Aurora’s Vertis process visualization software. Furthermore, the Decima Gemini system provides spatially resolved measurements to allow manu-facturers to observe and control intra-wafer variations.

Application: Decima Gemini consists of a specialized pair of Decima CD measurement heads. With this system, the sheet resistance of the wafers’ back-surface field and emitter are measured accurately and simultaneously. Each Decima Gemini system is managed and controlled as a unit by Aurora’s Veritas process visualization software. In simple words, it is used for in-line measurement of bi-facial solar cells.

Benefits: With the use of Aurora’s pat-ented Infrared Reflectometry measurement tech-nology, it can measure doped semiconductor layers without contacting the cell or the need for an electrical junction between doped layers. Decima can also accurately measure the bifacial cell’s back-surface field without interference from wafer resistivity variations – a crucial need for this type of application

Availability: Available for purchase