Tandem perovskite-perovskite solar cell integrating kesterite shows potential efficiency of 23.32%

The simulated tandem cell integrates a hole transport layer made of kesterite and lead-free perovskite materials. Its creators claim the combined device performs better than the individual cells it embeds. An international group of researchers has designed a tandem perovskite-perovskite solar cell that integrates a hole transport layer (HTL) made of kesterite (CZTSe). Kesterite is one of the most promising light absorber material candidates for potential use in lower-cost thin-film solar cells. Kesterites include common elements such as copper, tin, zinc, and selenium. Unlike CIGS compounds, there ...

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