Intermediates transformation for efficient perovskite solar cells  

作　　者：Zhizai Li Yi Sun Huanhuan Yao Jing Zhao Qian Wang Liming Ding Zhiwen Jin 

机构地区：[1]School of Physical Science and Technology&Key Laboratory for Magnetism and Magnetic Materials of MoE&Key Laboratory of Special Function Materials and Structure Design,MoE&National&Local Joint Engineering Laboratory for Optical Conversion Malerials and Technology,Lanzhou Universiy,Lanzhou 730000 Gansu,China [2]School of Physics,Changhi Unversity,Chornghi 830100 Xinjiang Uygur Autonomous Region,China [3]Center for Excllence in Nanoscience(CAS),Key Laboratony of Nonosystem anp Hierarchical Fabrication(CAS),Nationol Center for Nanoscience and Technology,Beijing 100190,China

出　　处：《Journal of Energy Chemistry》2021年第1期102-114,I0004,共14页能源化学（英文版）

基　　金：funded by the National Natural Science Foundation of China (51902148, 61704099, 51801088 and 11664001);the Fundamental Research Funds for the Central Universities (lzujbky-2020-61, lzujbky-2019-88 and lzujbky-2020-kb06);the Special Funding for Open and Shared Large-Scale Instruments and Equipments of Lanzhou University (LZU-GXJJ-2019C023 and LZU-GXJJ-2019C019)。

摘　　要：Perovskite materials have made a great progress in terms of the power conversion efficiency(PCE), rising from 3.8% to 25.2%. To obtain pinhole-free, superior crystal, and high-quality perovskite films with less defect, intermediates transformation is important, which has been clearly studied and widely applied.In this review, we systematically summarize the commonly formed intermediates and detailedly analyze their mechanisms from five aspects:(1) Solvent-induced intermediate;(2) HI-induced intermediate;(3)CH3NH2-induced intermediate;(4) MAAc-induced intermediate;(5) other intermediates. Finally, we also provide some prospects on high-quality perovskite fabrication based on using intermediates prudently.

关 键 词：INTERMEDIATE Formation energy Crystalline dynamics SOLUBILITY Nucleation sites 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]