Abstract

Solar Cells In article number 2108090, Gang Wang, Hao-Li Zhang, Zhiwen Jin, and co-workers propose a C3N quantum dots insertion method to effectively adsorb bulky organic cations, and provide nucleation sites to realize gradient distribution of solute in 2D CsPbI3 film to obtain a bi-directional crystallization process. Importantly, the optimized 2D CsPbI3 film-based device delivers a high power conversion efficiency of 15.63% with strengthened environmental stability, and also versatility to other RP and DJ-type bulky organic molecules.

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