Abstract
One of the challenges facing the industrialization of perovskite solar cells (PSCs) is the lack of outdoor field‐testing evaluation, especially for large‐scale perovskite solar modules. Herein, the real‐world operating performance of an efficient PSC module in the rooftop field test is characterized and analyzed. The maximum power point of a 125 mm × 125 mm PSC module, with a power conversion efficiency (PCE) of 10.34%, is tracked outdoors. Meanwhile, the weather information is recorded, which enables us to investigate the correlation between specific outdoor factors and the device performance. Compared with the multicrystalline silicon (mc‐Si) solar cell as a reference, the PSC module is more sensitive to outdoor solar spectral variations due to its narrow absorption region. Furthermore, benefitting from the long‐wave bump and redshift of the spectral, the available energy ratio of PSC module increases in the morning and afternoon hours, and its performance ratio (PR) value increases accordingly. During the test, the PR of PSC module reaches a maximum of 92.3%, an average of 5% higher than that of the mc‐Si counterpart.
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