Moving beyond the 80-year-old solar cell equation

Physicists have made a significant breakthrough in solar cell technology by developing a new analytical model that improves the understanding and efficiency of thin-film photovoltaic devices.

These thin-film solar cells, made of flexible, low-cost materials have had limited efficiency due to factors that the existing analytical models couldn't fully explain. "The traditional models just weren't capturing the whole picture, especially for these thin-film cells with low-mobility semiconductors," explained the principal investigator, Associate Professor Ardalan Armin of Swansea University."Our new study addresses this gap by introducing a new diode equation specifically tailored to account for these crucial injected carriers and their recombination with those photogenerated.

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