Tailoring Multifunctional Self-Assembled Hole Transporting Molecules for Highly Efficient and Stable Inverted Perovskite Solar Cells

Rui Guo; Xiaoru Zhang; Xin ZhengLin LiMin LiYang ZhaoShujing ZhangLong LuoShuai YouWeixi LiZhongmiao GongRong HuangYi CuiYaoguang RongHaipeng ZengXiong Li

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Tailoring Multifunctional Self-Assembled Hole Transporting Molecules for Highly Efficient and Stable Inverted Perovskite Solar Cells

机译：Tailoring Multifunctional Self-Assembled Hole Transporting Molecules for Highly Efficient and Stable Inverted Perovskite Solar Cells

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The self-assembled hole transporting molecules (SAHTMs) bearing anchoringgroups have been established as the hole transporting layers (HTLs) forhighly efficient p–i–n perovskite solar cells (PSCs), yet their stability andengineering at the molecular level remain challenging. A topological design ofhighly anisotropic aligned SAHTM-based HTLs for operationally stable PSCsthat exhibit exceptional solar-to-electric power conversion efficiencies (PCEs)is demonstrated. The judiciously designed multifunctional self-assembledmolecules comprise the donor–acceptor subunit for hole transporting and thephosphonic acid group for anchoring, realizing face-on π-stacking parallel tothe transparent conductive oxide substrate. The high affinity of SAHTMs tothe multi-crystalline perovskite thin film benefits passivating the perovskiteburied interface, strengthening interfacial contact while facilitating interfacialhole transfer. Consequently, highly efficient p–i–n PSC devices are obtainedwith a champion PCE of 23.24 and outstanding operational stability towardvarious environmental factors including long-term full sunlight soaking atevaluated temperatures. Perovskite solar modules with a champion efficiencyapproaching 20 are also fabricated for an active device area above 17 cm~2.

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来源
《Advanced functional materials》 |2023年第10期|2211955.1-2211955.9|共9页
作者
Rui Guo; Xiaoru Zhang; Xin ZhengLin LiMin LiYang ZhaoShujing ZhangLong LuoShuai YouWeixi LiZhongmiao GongRong HuangYi CuiYaoguang RongHaipeng ZengXiong Li;
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作者单位

Michael Graetzel Center for Mesoscopic Solar CellsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan, Hubei 430074, China;

Vacuum Interconnected Nanotech Workstation (Nano-X)Suzhou Institute of Nano-Tech and Nano-Bionicsthe Chinese Academy of SciencesSuzhou 215123, China;

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正文语种英语
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donor–acceptor anchored molecules; hole transport materials; ion diffusions; perovskite solar cells; stability;

Tailoring Multifunctional Self-Assembled Hole Transporting Molecules for Highly Efficient and Stable Inverted Perovskite Solar Cells

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