Lead-free inverted perovskite solar cells without transparent conducting oxides may achieve 30% efficiency

Researchers in Nigeria have proposed to build inverted perovskite solar cells exclusively with all-inorganic transport materials and a lead-free perovksite absorber. Through a series of simulations, they showed these device may achieve efficiencies over 30% with low production costs. A research group in Nigeria has proposed to build n-type heterojunction planar inverted perovskite solar cells without using transparent conducting oxides (TCOs) for the passivate contacts. The researchers said this new design is intended to maximize the cell performance while reducing production costs and environmental ...

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