文献类型：期刊文献

中文题名：Minimizing interfacial energy losses in inverted perovskite solar cells by a dipolar stereochemical 2D perovskite interface

作者：Junjie Qian[1];Jingjing He[2];Qihang Zhang[1];Chenyue Zhu[1];Shilin Chen[1];Zhanpeng Wei[1];Xuesong Leng[1];Ziren Zhou[1];Benben Shen[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,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：2024

卷号：90

期号：3

起止页码：496

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,China,the National Natural Science Fund for Excellent Young Scholars,China(52022030);the National Natural Science Foundation of China,China(51972111,52203330);the Shanghai Pilot Program for Basic Research,China(22TQ1400100-5);the “Dawn”Program of Shanghai Education Commission,China(22SG28);the Shanghai Municipal Natural Science Foundation,China(22ZR1418000);the Science and Technology Innovation Plan of Shanghai Science and Technology Commission,China(22YF1410000);the Postdoctoral Research Foundation of China,China(2021M701190);the Fundamental Research Funds for the Central Universities,China(JKD01231632,JKVD1231041);the Major Science and Technology Projects of Inner Mongolia Autonomous Region,China(2021ZD0042);the Shanghai Engineering Research Center of Hierarchical Nanomaterials,China(18DZ2252400)。

语种：英文

中文关键词：Perovskite solar cells;Dipole interlayer;Stereochemistry;Non-radiative recombination

摘要：Inverted perovskite solar cells(PSCs) have attracted broad research and industrial interest owing to their suppressed hysteresis,cost-effectiveness,and easy-fabrication.However,the issue of non-radiative recombination losses at the n-type interface between the perovskite and fullerene has impeded further improvement of photovoltaic performance.Here,we modify the n-type interface of FAPbI_(3) perovskite films by constructing a stereochemical two-dimensional(2D) perovskite interlayer,in which the organic cations comprise both pyridine and ammonium groups.The pyridine N donor can create stable bonding with the surface-uncoordinated Pb on the perovskite,thereby passivating the shallow-level defects and enhancing the air stability of the film.Furthermore,the pyridine N donor also offers a positive polar interface to decrease the surface work function of the perovskite film,enabling n-type modification.Ultimately,we employ a p-i-n photovoltaic(PV) device with the positive dipole interlayer at perovskite/fullerene contact and achieve remarkable photoelectric conversion efficiency(PCE) of 22.0%.