Evidence of cost switch in these methods shows promise for growing power conversion effectivity in perovskite photo voltaic cells. The highest performing perovskites photo voltaic cells suffer from chemical instability. The organic parts equivalent to methylammonium or formamidinium are the idea of the weakness. Encapsulation to prevent this decay is expensive. Absolutely inorganic perovskites could miminize these problems. 1.7 eV), in addition to excellent optoelectrical properties. Although chemically stable, these perovskite materials face vital points with phase stability that stop its broad industrial software. In high efficiency CsPbI3, for example, the photoactive black α-phase is prone to transform into the
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