The thesis presents the development of a measurement system designed to investigate the hysteresis phenomenon in the current-voltage characteristics, a unique feature of perovskite solar cells. The system is capable of measuring I-V characteristics using a triangular voltage signal ranging from 0 V to open-circuit voltage at frequencies between 0,1 and 2000 Hz. A printed circuit board was designed. The system is controlled by the MiŠKo 3.0 development board. The user interface, programmed in Matlab, allows for setting the direction of the triangular signal, measurement frequency, and time intervals between measurements. The developed system is compact and does not require expensive measuring equipment.
The measurement system was tested on a silicon photodiode, a silicon solar cell, and a perovskite solar cell, successfully illustrating the hysteresis observed in the I-V characteristics. The system supports compensation of the pre-bias voltage on the negative electrode of the solar cell, facilitating compatibility with other systems. It can measure solar cells with open-circuit voltages up to 3,1 V and short-circuit currents up to 60 mA.
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