文献类型：期刊文献

中文题名：Nano-capillary induced assemble of quantum dots on perovskite grain boundaries for efficient and stable perovskite solar cells

作者：Miaoyu Lin[1];Jingjing He[2];Xinyi Liu[1];Qing Li[1];Zhanpeng Wei[1];Yuting Sun[1];Xuesong Leng[1];Mengjiong Chen[1];Zhuhui Xia[1];Yu Peng[1];Qiang Niu[2];Shuang Yang[1];Yu Hou[1]

机构：[1]Key Laboratory for Ultrafine Materials of Ministry of Education,Shanghai Engineering Research Center of Hierarchical Nanomaterials,Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]National Enterprise Technology Center,Inner Mongolia Erdos Electric Power and Metallurgy Group Company Limited,Ordos 016064,Inner Mongolia,China

年份：2023

期号：8

起止页码：595

中文期刊名：Journal of Energy Chemistry

外文期刊名：能源化学（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2023_2024】；

基金：financially supported by the National Ten Thousand Talent Program for Young Top-notch Talent;the National Natural Science Fund for Excellent Young Scholars (52022030);the National Natural Science Foundation of China (51972111,52203330);the Shanghai Pilot Program for Basic Research(22TQ1400100-5);the “Dawn” Program of Shanghai Education Commission (22SG28);the Shanghai Municipal Natural Science Foundation (22ZR1418000);the Science and Technology Innovation Plan of Shanghai Science and Technology Commission(22YF1410000);the Postdoctoral Research Foundation of China(2021M701190);the Fundamental Research Funds for the Central Universities (JKM01221621, JKM01221678);the Major Science and Technology Projects of Inner Mongolia Autonomous Region(2021ZD0042);Shanghai Engineering Research Center of Hierarchical Nanomaterials (18DZ2252400)。

语种：英文

中文关键词：Perovskite solar cells;Quantum dots;Capillarity;Grain boundary;Passivation

摘要：In recent years, perovskite solar cells(PSCs) have propelled into the limelight owing to rapid development of efficiency;however, the abundant defects at the perovskite grain boundaries result in unwanted energy loss and structural degradation. Here, the grain boundaries of perovskite polycrystalline films have been found to act as nanocapillaries for capturing perovskite quantum dots(PQDs), which enable the conformal assemble of PQDs at the top interspace between perovskite grains. The existence of PQDs passivated the surface defects, optimized the interfacial band alignments, and ultimately improved the power conversion efficiency from 19.27% to 22.47% in inverted PSCs. Our findings open up the possibility of selective assembly and structural modulation of the perovskite nanostructures towards efficient and stable PSCs.