Nature Communications (Mar 2019)
A chemically inert bismuth interlayer enhances long-term stability of inverted perovskite solar cells
Abstract
Long term stability is a major barrier for the commercialization of halide perovskite solar cells. Here Wu et al. demonstrate that a chemically inert and structural impermeability bismuth electrode interlayer greatly increases the stability of unencapsulated perovskite solar cells under harsh conditions.