Characterization & Cell Calibration

In our laboratories, characterization measurements are performed ex-situ as well as in-situ during processing and cover a large range of approaches. Among these are spectral response and quantum efficiency measurements, I-V characteristics, camera-based luminescence and lock-in thermography measurements as well as microscopic techniques like microscopic photoluminescence or SEM-based techniques.

Combined with cell simulations based on different platforms (Sentaurus TCAD, Quokka), we can determine cell performance and identify losses. Based on our results, we provide detailed assistance for further cell optimization. Visit our other websites for more detailed information.

Publication:

Nondestructive probing of perovskite silicon tandem solar cells using multiwavelength photoluminescence mapping

For over 30 years, we have been providing high-precision solar cell calibrations and comprehensive measurement services in our internationally renowned accredited calibration laboratory CalLab PV Cells. At our facilities, we characterize a wide variety of solar cell types with high accuracy and precision in accordance with international standards, serving industry and research around the world. For tandem solar cells, our services include wavelength-dependent spectral response measurements, several multi-source simulators for precise tandem measurements up to six junctions. With these simulators we achieve highest precision for IV and EQE measurements under a wide range of temperature and irradiation conditions (STC and others). Potential time dependencies or hysteresis effects are carefully considered.