| Abstract [eng] |
This dissertation presents the development and validation of novel LED-only and hybrid solar simulators that meet at least AAA-class requirements using a minimal number of light source types. It investigates spectral mismatch effects across various solar cell technologies and proposes strategies to mitigate their impact. A modular AAA-class LED-only simulator using 22 LEDs with a square mirror layout is introduced for testing industrial solar cells. Spectral mismatch effects, photocurrent deviations, and spectral coverage limitations are analyzed across c-Si, a-Si, CdTe, and µc-Si cells using LED-only (≤6 LED types) and hybrid simulators. A mitigation strategy for these effects is proposed and validated through extensive simulations on various c-Si cell configurations, considering variations in doping, absorber thickness, and carrier lifetime. These findings support a full and effective transition to LED-based solar simulators, aligned with evolving performance standards in the photovoltaic industry. |
