Class AAA+ high-precision lab tester to measure bifacial (BF) solar cells

CetisPV-Celltest4-BF provides the possibility to measure monofacial and bifacial solar cells using different illumination levels for their rear and front side. Using two synchronized class AAA+ Xenon flashers, flexible flash profiles can be applied within one measurement sequence. This enables the measurement under front and rear STC conditions, as well as typical field conditions for bifacial solar (e.g. 1.000Wm²(front) and 200Wm²(rear)).

CetisPV-Celltest4-BF is designed for high-end R&D, laboratory and quality control demands. Its solar simulator provides a highly stable irradiance overlong flash duration. Combined with the well-known halm IV curve tracer and halm single-flash advanced hysteresis to measure high-capacitance solar, this system is designed to match the demands of current and up-coming cell technologies. Our applicant software PVControl offers one-click solutions for parameter adaptions and the recipe-based storage of settings, including polarity switching and customized evaluations using user-defined formulas.

The standard IV measurement system can be complemented by further tools for quality and process control such as electroluminescence or infrared imaging, in line spectral response and grid resistance.