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In article number 2205909, Janusz Lewiński, Chang Kook Hong, and co‐workers demonstrate a novel approach to low‐temperature processable and inherently pure ZnO electron transport layer (ETL) for highly stable planar heterojunction perovskite solar cells (PSCs) based on organic ligand‐free ZnO quantum dots. The champion PSC achieved a power conversion efficiency of 20.05%, the state‐of‐the‐art...
Zinc oxide (ZnO) is a promising electron‐transport layer (ETL) in thin‐film photovoltaics. However, the poor chemical compatibility between commonly used sol–gel‐derived ZnO nanostructures and organo–metal halide perovskites makes it highly challenging to obtain efficient and stable perovskite solar cells (PSCs). Here, a novel approach is reported for low‐temperature processed pure ZnO ETLs for planar...
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