MBJ Solutions GmbH has introduced a new hardware and software platform for sun simulators, designed to enhance the efficiency and precision of photovoltaic (PV) module testing. This article examines the evolving requirements for next-generation solar modules and reviews technical solutions that support ongoing research in photovoltaics.
As solar technology advances rapidly, laboratory software plays a central role in supporting research and development. Accurately evaluating solar module performance requires the integration of various measurement and inspection methods.
Among these, electroluminescence analysis at different wavelengths is a key application. This phenomenon, occurring in semiconductor materials like silicon diodes or solar cells, reveals details about the internal structure and defects. In tandem cells, imaging each sub-cell at distinct wavelengths is essential for mapping charge carrier lifetime across different layers. For instance, significant differences in electroluminescence intensity patterns between top and bottom cells are often observed, typically resulting from localized defects in perovskite layers.
Simulating sunlight with adjustable spectra and intensity is another critical laboratory process. Photovoltaic devices must be evaluated under conditions that resemble real-world environments, but they also need to perform reliably across a range of spectral inputs. This allows researchers to test modules under different current-limiting regimes and better understand their behavior.
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