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Enhanced charge collection of AgNWs-based top electrode to realize high-performance,all-solution processed organic solar cells

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Science China Chemistry 2024年第10期67卷 3347-3356页

作者： juanyong wan Yang Chen Weijie Chen Jinfeng Xia Guang Zeng Jianlei Cao Chuang Jin Yunxiu Shen Xiaoxiao Wu Haiyang Chen Junyuan Ding Xue-mei Ou Yaowen Li Yongfang Li Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and DevicesCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Jiangsu Sidike New Materials Science and Technology Co. Ltd.Suqian 215400China

All-solution processed organic solar cells are the ultimate aim of printable photovoltaics,but their electrical losses arising from poor contact of top electrodes greatly limit efficiency *** solve the problem,a solution-processed hybrid top electrode was constructed using silver nanowires(AgNWs)as the skeleton and ZnO nanoparticles(ZnO-NPs)as the *** constructing the skeleton,a spin-rinsing treatment was first used to reduce the amount of the residual insulating polyvinylpyrrolidone wrapped around the AgNWs to promote intimate contact among the AgNWs in the ***,the ZnO-NPs matrix was deposited onto the AgNWs skeleton,bridging the AgNWs skeleton with the underlayer ZnO-NPs electron transporting layer(ETL).The underlayer ZnO-NPs ETL can also induce the growth of the ZnO-NPs matrix to minimize lattice mismatch,which creates additional transport channels from the ETL to the AgNWs skeleton for charge *** a result,the obtained electrode significantly enhances the electrical contact in the device,thus delivering record power conversion efficiencies of 16.04%and 14.54%for rigid and flexible all-solution processed OSCs,respectively.

关键词： solution-processed top electrode organic solar cells AgNWs electrical contact

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“Reinforced concrete”-like flexible transparent electrode for organic solar cells with high efficiency and mechanical robustness

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Science China Chemistry 2022年第6期65卷 1164-1172页

作者： Yang Chen juanyong wan Guiying Xu Xiaoxiao Wu Xinqi Li Yunxiu Shen Fu Yang Xuemei Ou Yaowen Li Yongfang Li Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and DevicesCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou215123China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Dsign and ApplicationSoochow UniversitySuzhou215123China Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing100190China

Flexible transparent electrodes(FTEs) with robust mechanical stability are crucial for the industrial application of flexible organic solar cells(OSCs). However, their production remains challenging owing to the difficulty in balancing the conductivity,transmittance, and adhesion of FTEs to substrates. Herein, we present the so-called “reinforced concrete” strategy which finetunes the structure of silver nanowires(Ag NWs)-based FTEs with polydopamine(PDA) possessing good adhesion properties and moderate reducibility. The PDA reduces Ag+to form silver nanoparticles(Ag NPs) which grow like “rivets” at the Ag NW junction sites;PDA stabilizes the Ag NW skeleton and improves the adhesion between the Ag NWs and polyethylene terephthalate(PET) substrate and interface layer. The obtained Ag NW:PDA:Ag NP FTE exhibits excellent optoelectronic properties and high mechanical stability. The resulting flexible OSCs exhibit 17.07% efficiency, high flexibility during 10,000 bending test cycles, and robust peeling stability. In addition, this “reinforced concrete”-like FTE provides great advantages for the production of large-area flexible OSCs, thereby paving a new way toward their commercial application.

关键词： flexible organic solar cells flexible transparent electrodes silver nanowires polydopamine mechanical stability

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Solution‑Processed Transparent Conducting Electrodes for Flexible Organic Solar Cells with 16.61% Efficiency

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Nano-Micro Letters 2021年第3期13卷 39-52页

作者： juanyong wan Yonggao Xia Junfeng Fang Zhiguo Zhang Bingang Xu Jinzhao wang Ling Ai Weijie Song Kwun Nam Hui Xi Fan Yongfang Li Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201People’s Republic of China School of Physics and Electronics Science Engineering Research Center of Nanophotonics and Advanced InstrumentMinistry of EducationEast China Normal UniversityShanghai 200241People’s Republic of China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitution of ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Nanotechnology Center Institute of Textiles and ClothingThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China Department of Material Science and Engineering Hubei UniversityWuhan 430062People’s Republic of China State Key Laboratory of Organic/Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoAvenida da UniversidadeTaipaMacao SAR 999078People’s Republic of China

Nonfullerene organic solar cells(OSCs)have achieved breakthrough with pushing the efficiency exceeding 17%.While this shed light on OSC commercialization,high-performance flexible OSCs should be pursued through solution ***,we report a solution-processed flexible OSC based on a transparent conducting PEDOT:PSS anode doped with trifluoromethanesulfonic acid(CF3SO3H).Through a low-concentration and low-temperature CF3SO3H doping,the conducting polymer anodes exhibited a main sheet resistance of 35Ωsq−1(minimum value:32Ωsq−1),a raised work function(≈5.0 eV),a superior wettability,and a high electrical *** high work function minimized the energy level mismatch among the anodes,hole-transporting layers and electron-donors of the active layers,thereby leading to an enhanced carrier *** solution-processed flexible OSCs yielded a record-high efficiency of 16.41%(maximum value:16.61%).Besides,the flexible OSCs afforded the 1000 cyclic bending tests at the radius of 1.5 mm and the long-time thermal treatments at 85°C,demonstrating a high flexibility and a good thermal stability.

关键词： Solution-processed transparent conducting electrode Flexible organic solar cell PEDOT:PSS Trifluoromethanesulfonic acid doping Solution processing

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基于微纳银透明电极的柔性有机太阳能电池研究进展

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中国科学：化学 2022年第11期52卷 2045-2063页

作者：万隽永李耀文李永舫苏州大学先进光电材料重点实验室苏州大学材料与化学化工学部苏州215123 苏州大学新型功能高分子材料国家地方联合工程实验室江苏省先进功能高分子设计与应用重点实验室苏州215123 北京分子科学国家实验室中国科学院有机固体重点实验室中国科学院化学研究所北京100190

高性能的柔性透明电极是实现高效柔性有机太阳能电池的关键因素之一.以银为代表的微纳金属透明电极,如网格银以及银纳米线等,具有高导电性、高透光性、优异的耐机械弯曲性以及低成本等特点,是柔性有机太阳能电池中常用的透明电极材料.在... 详细信息

高性能的柔性透明电极是实现高效柔性有机太阳能电池的关键因素之一.以银为代表的微纳金属透明电极,如网格银以及银纳米线等,具有高导电性、高透光性、优异的耐机械弯曲性以及低成本等特点,是柔性有机太阳能电池中常用的透明电极材料.在近10年的研究中,基于微纳银透明电极的柔性有机太阳能电池实现了光电转换效率的不断突破.本文首先介绍了网格银与银纳米线的几种不同的制备方法;接着对银纳米线薄膜导电性的优化方法进行了总结,并综述了基于微纳银透明电极的柔性有机太阳能电池的研究进展;最后对基于微纳银透明电极的高效柔性有机太阳能电池的后续研究所面临的挑战进行了展望.

关键词：网格银银纳米线柔性透明电极柔性有机太阳能电池

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印山越国王陵墓坑边坡化学加固试验研究

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岩石力学与工程学报 2010年第11期29卷 2370-2376页

作者：杨隽永万俐陈步荣范陶峰张慧南京博物院文物保护科学技术研究所江苏南京210016 南京工业大学材料科学与工程学院江苏南京210009

以印山越国王陵墓坑边坡加固为背景,通过试验比较几种化学材料的加固效果。在室内试验中,经过正硅酸乙酯加固的岩石试块效果相对较好:其外观状态改变最小,而单轴抗压强度和耐水性能有所提高,此外正硅酸乙酯的渗透性能也优于其他材料。... 详细信息

以印山越国王陵墓坑边坡加固为背景,通过试验比较几种化学材料的加固效果。在室内试验中,经过正硅酸乙酯加固的岩石试块效果相对较好:其外观状态改变最小,而单轴抗压强度和耐水性能有所提高,此外正硅酸乙酯的渗透性能也优于其他材料。在现场试验中,采用注射、滴注和喷淋等方式进行加固试验,结果表明正硅酸乙酯加固效果符合设计要求,可以作为墓坑边坡加固的化学材料之一。目前墓坑边坡加固已经完成,岩石表层强度有所增加,而碎石崩塌现象明显减小。

关键词：边坡工程风化作用户外石质文物化学加固材料正硅酸乙酯

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