The growing interest among PV module manufacturers in commercializing perovskite-based modules underscores the need for advanced and reliable characterization tools, particularly at the research and development (R&D) stage.
Addressing this trend, WAVELABS Solar Metrology Systems GmbH recently launched its SINUS-1000 ADVANCED mini-module tester at Intersolar Europe 2025. In addition to wafer-based cell technologies, this new tool also supports thin-film solutions, particularly perovskites.
Key Features
To meet the irradiance quality required for precise characterization of perovskite cells, the SINUS-1000 ADVANCED uses LED-based light sources with A+ classified homogeneity, delivering uniform light distribution across a 50 × 50 cm irradiated area – unlike traditional Xenon lamps.
Going beyond crystalline silicon technology, the tool also supports tandem cells, which combine 2 or more layers (sub-cells) made from different materials (e.g., perovskite + silicon). Each sub-cell is designed to absorb a specific segment of the solar spectrum – for instance, one may absorb blue light (short wavelengths), while another captures red or infrared light (longer wavelengths). To accommodate this broad spectral range, the system features automatic spectral calibration for sub-cells, enabling current mismatch tuning and maximum power point (MPP) tracking of the tandem structure. WAVELABS adds that the system’s smart spectral calibration supports a wide range of exposure durations, including continuous illumination.
To ensure long-term spectral stability, the tool integrates a spectrometer and intensity sensor operating within a closed-loop feedback system.
At the R&D stage, essential characterization parameters for perovskite modules include IV measurement – assessing voltage, current, and power under standard test conditions (STC), External Quantum Efficiency (EQE) – measuring how efficiently each sub-cell converts incoming photons into electrons, Electroluminescence (EL) – detecting issues like microcracks or inactive cells, and Infrared (IR) imaging – identifying thermal issues such as hot spots or mismatches. WAVELABS’ new tester integrates all of these diagnostics into a single platform. It is also well-suited for tandem cells' EL testing. Notably, the system can measure module power under varying irradiances and temperatures, in compliance with IEC 61853-1.
To minimize handling risks without compromising quality control, the tool includes vacuum suction-based handling and precise thermal management to protect sensitive solar devices during testing.
Carsten W. Hense, CEO of WAVELABS, commented, “The launch of the SINUS-1000 ADVANCED further solidifies our dedication to driving innovation in solar characterization technology.”
