Increased A-Grade Yield in Solar Cell Production through Innovative Electroluminescence Technology
Today’s major challenges in Photovoltaic production are the continuous optimization of solar cell efficiencies and at the same time the reduction of manufacturing costs. ISRA SOLAR VISION, a business unit of ISRA VISION AG, Darmstadt, Germany, provides the complete range of state-of-the-art high-efficiency inspection systems that enable PV manufacturers to master these challenges. With the new generation electroluminescence (EL) inspection system, the leading supplier of best-in-class solar inspection systems has achieved another quantum leap in the high-accuracy inspection of solar cells: SOLARSCAN-EL Multispectral Dual provides the most accurate defect classification resulting in the lowest false detection and therefore lowest false downgrading rates on the market. At triple inspection speed it is also the industry’s fastest electroluminescence inspection. This way, the latest inspection avoid defects that are invisible to the human eye, leading to a three percent increase in maximum quality yield and remarkable cost savings though the reduction of material loss in solar cell production. More than enough reasons for the global PV industry to apply the smart ISRA SOLAR VISION inspection solutions.
The innovative high-speed in-line SOLARSCAN YIELDMASTER EL inspection systems offer the industry’s highest repeatability and detection rates resulting in the a superior inspection performance providing a clear value add to PV manufacturers. The new generation electroluminescence inspection is able to characterize solar elements during the mass production. Additionally it provides the reliable distinction between material defects such as dislocations, changes in the material, foreign objects in the silicon etc., as well as process defects (cracks, finger interruptions, low efficiency regions, scratches, etc.) by the characterization of solar cells with the new multispectral inspection method. This enables cell manufacturers to improve the quality control of the basic material leading to a significant increase in high-quality yield.
