Printing-Induced Alignment Network Design of Polymer Matrix for Stretchable Perovskite Solar Cells with Over 20 Efficiency

Chenxiang Gong; Feng Li; Xiaotian HuCong WangSiyi ShiTing HuNan ZhangChao LiangDongdong WuYiwang Chen

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Printing-Induced Alignment Network Design of Polymer Matrix for Stretchable Perovskite Solar Cells with Over 20 Efficiency

机译：Printing-Induced Alignment Network Design of Polymer Matrix for Stretchable Perovskite Solar Cells with Over 20 Efficiency

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Polymer matrix is felicitously applied into the active layer and transportinglayer of perovskite solar cells (PSCs) to enable a stretchable function. However,the chaotic deposition of polymer chains is the main cause for the inferiorphotoelectric performance. When the stretchable PSCs are in a workingstate, the stress cannot be removed effectively due to the random polymerchain deposition. The stress accumulation will cause irreversible damage tothe stretchable PSCs. Herein, the structural bionics and patterned-meniscuscoating technology are combined to print the polymer chain-oriented depositionin the stretchable PSCs. Based on this approach, the conducting polymerelectrode is printed with both significant mechanical stability and conductivity.More importantly, the oriented polyurethane with self-healing property canenhance the crystal quality of perovskite films and repair perovskite crackscaused by stress destruction. Thus, the corresponding stretchable PSCsachieve a stabilized power conversion efficiency (PCE) of 20.04 (1.0 cm~2)and 16.47 (9 cm~2) with minor efficiency discrepancy. Notably, the stretchablePSCs can maintain 86 of the primitive PCE after 1000 cycles of bendingwith a stretch ratio of 30. This directional growth of polymer chain strategyprovides guidance for printing prominent-performance stretchable PSCs.

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来源
《Advanced functional materials》 |2023年第26期|2301043.1-2301043.9|共9页
作者
Chenxiang Gong; Feng Li; Xiaotian HuCong WangSiyi ShiTing HuNan ZhangChao LiangDongdong WuYiwang Chen;
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作者单位

College of Chemistry and Chemical Engineering/Institute of Polymersand Energy ChemistryNanchang University999 Xuefu Avenue, Nanchang 330031, China;

College of Chemistry and Chemical Engineering/Institute of Polymersand Energy ChemistryNanchang University999 Xuefu Avenue, Nanchang 330031, China,Peking University Yangtze Delta Institute of OptoelectronicsNantong 226010, China;

Joint Key Laboratory of the Ministry of EducationInstitute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da UniversidadeTaipa, Macau 519000, ChinaMOE Key Laboratory for Nonequilibrium Synthesisand Modulation of Condensed MatterSchool of PhysicsNational Innovation Platform (Center) for Industry-EducationIntegration of Energy Storage TechnologyXi’an Jiaotong UniversityXi’an 710049, ChinaDepartment of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijing 100853, ChinaCollege of Chemistry and Chemical Engineering/Institute of Polymersand Energy ChemistryNanchang University999 Xuefu Avenue, Nanchang 330031, China,National Engineering Research Center for Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for Energy M;

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正文语种英语
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bionic printing; polymer matrix; self-healing; shear printing; stretchable solar cells;

Printing-Induced Alignment Network Design of Polymer Matrix for Stretchable Perovskite Solar Cells with Over 20 Efficiency

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