首页> 中文期刊> 《能源化学:英文版》 >Spatial configuration engineering of perylenediimide-based non-fullerene electron transport materials for efficient inverted perovskite solar cells

Spatial configuration engineering of perylenediimide-based non-fullerene electron transport materials for efficient inverted perovskite solar cells

         

摘要

Due to their excellent photoelectron chemical properties and suitable energy level alignment with perovskite,perylene diimide(PDI)derivatives are competitive non-fullerene electron transport material(ETM)candidates for perovskite solar cells(PSCs).However,the conjugated rigid plane structure of PDI units result in PDI-based ETMs tending to form large aggregates,limiting their application and photovoltaic performance.In this study,to restrict aggregation and further enhance the photovoltaic performance of PDI-type ETMs,two PDI-based ETMs,termed PDO-PDI2(dimer)and PDO-PDI3(trimer),were constructed by introducing a phenothiazine 5,5-dioxide(PDO)core building block.The research manifests that the optoelectronic properties and film formation property of PDO-PDI2 and PDO-PDI3 were deeply affected by the molecular spatial configuration.Applied in PSCs,PDO-PDI3 with threedimensional spiral molecular structure,exhibits superior electron extraction and transport properties,further achieving the best PCE of 18.72%and maintaining 93%of its initial efficiency after a 720-h aging test under ambient conditions.

著录项

  • 来源
    《能源化学:英文版》 |2021年第5期|P.374-382|共9页
  • 作者单位

    Institute for Energy Research School of Materials Science&Engineering Jiangsu University Zhenjiang 212013 Jiangsu China;

    Institute for Energy Research School of Materials Science&Engineering Jiangsu University Zhenjiang 212013 Jiangsu China;

    Institute for Energy Research School of Materials Science&Engineering Jiangsu University Zhenjiang 212013 Jiangsu China;

    Institute for Energy Research School of Materials Science&Engineering Jiangsu University Zhenjiang 212013 Jiangsu China;

    State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT−KTH Joint Education and Research Center on Molecular Devices Dalian University of Technology(DUT) Dalian 116024 Liaoning China;

    Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS) National Center for Nanoscience and Technology Beijing 100190 China;

    Institute for Energy Research School of Materials Science&Engineering Jiangsu University Zhenjiang 212013 Jiangsu China;

    Institute for Energy Research School of Materials Science&Engineering Jiangsu University Zhenjiang 212013 Jiangsu China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 有机化学;
  • 关键词

    Non-fullerene; Electron transport material; Perovskite solar cell; Inverted structure;

    机译:非富勒烯;电子传输材料;Perovskite太阳能电池;倒置结构;
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