{'fraction_non_alphanumeric': 0.02312925170068027, 'fraction_numerical': 0.0013605442176870747, 'mean_word_length': 5.513274336283186, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The Effect of Spectrum Variation on the Energy Production of Triple-Junction Solar Cells

We analyze the energy production of a current-matched, two-terminal triple-junction solar cell under different spectrum conditions. We compare this energy production with that of a separate-terminal three subcell system. Under real-spectrum conditions, the energy loss of the two-terminal system can be greater than 9% because of the current mismatch that frequently occurs in real meteorological conditions. The quantitative analysis of energy production between two-terminal and separate-terminal triple-junction solar cells opens up important opportunities in the design and optimization of concentration photovoltaic solar cells and modules.