Perovskite solar cell engineered with crown ethers achieves 21.7%

Researchers utilized crown ether B18C6 and interfacial passivation at the perovskite-hole transport material interface to address lead leakage, improve power conversion efficiency and the cell's ability to withstand humidity. As understanding of perovskite solar cells improves, scientists are looking ever more closely into the materials to understand the mechanisms at work and identify factors that limit performance, and potential routes for improvement. Recent research has identified the interface between the active perovskite material and other cell layers as the source of much performance ...

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