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In article 1705875, Zhao‐Kui Wang, Peng‐Fei Fang, Liang‐Sheng Liao, and co‐workers incorporate graphitic carbon nitride (g‐C3N4) into the perovskite layer of perovskite solar cells. The additive retards the crystallization rate, improving crystalline quality and reducing the intrinsic defect density of the perovskite film. Increasing the fill factor from 0.65 to 0.74 yields a stable device with a...
Organometallic halide perovskite films with good surface morphology and large grain size are desirable for obtaining high‐performance photovoltaic devices. However, defects and related trap sites are generated inevitably at grain boundaries and on surfaces of solution‐processed polycrystalline perovskite films. Seeking facial and efficient methods to passivate the perovskite film for minimizing defect...
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