Mystery of negative capacitance in perovskite solar cells solved

On the verge of outcompeting current thin-film solar cells, perovskite solar cells seem to embody an ideal solar cell with high efficiency and low cost. However, they have poor long-term stability, which remains a challenge. Related to this are peculiar phenomena occurring in perovskite materials and devices, where very slow microscopic processes cause a kind of "memory effect."

from Energy & Green Tech News - Energy Sciences News, Green Tech, Energy, Energy Science http://bit.ly/2WQtWk7

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