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Measuring Charge Carrier Lifetime in Perovskite Solar Cell Materials Using Time-Resolved Photoluminescence Spectroscopy

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Measuring Charge Carrier Lifetime in Perovskite Solar Cell Materials Using Time-Resolved Photoluminescence Spectroscopy

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Halide perovskite solar cells have attracted tremendous attention over recent years due to the rapid rise in solar cell efficiencies and their potential for providing high efficiency low cost solar power. Perovskite solar cell efficiencies have increased from 9% in 2012 to 21% in 2017 and are now competitive with traditional crystalline silicon cells. Despite this impressive rise in efficiency, the fundamental physics of these materials is not yet fully understood. The lifetime of the charge carriers plays an important role in determining the efficiency of the cell, as longer lived carriers will have a higher probability of reaching the electrodes.

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