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Application of an amphipathic molecule at the NiO_(x)/perovskite interface for improving the efficiency and long-term stability of the inverted perovskite solar cells

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Journal of Energy Chemistry 2023年第3期78卷 454-462,I0013页

作者： Guibin Shen hongye dong Fan Yang Xin Ren Ng Xin Li Fen Lin Cheng Mu Key Laboratory of Advanced Light Conversion Materials and Biophotonics Department of ChemistryRenmin University of ChinaBeijing 100872China Solar Energy Research Institute of Singapore(SERIS) National University of SingaporeSingapore 117574Singapore State Key Laboratory of Materials Processing and Die&Mold Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina Department of Chemistry National University of Singapore3 Science Drive 3Singapore 117574Singapore

The presence of defects and detrimental reactions at NiO_(x)/perovskite interface extremely limit the efficiency performance and long-term stability of the perovskite solar cells(PSCs) based on NiO_(x).Herein,an amphipathic molecule Triton X100(Triton) is modified on the NiO_(x)*** hydrophilic chain of Triton as a Lewis base additive can coordinate with the Ni3+on the NiO_(x)surface which can passivate the interfacial defects and hinder the detrimental reactions at the NiO_(x)/perovskite ***,the hydrophobic chain of Triton protrudes from the NiO_(x)surface to prevent moisture from penetrating into the NiO_(x)/perovskite ***,the NiO_(x)/Triton-based devices(MAPbI3as absorbing layer) show superior moisture and thermal stability,retaining 88.4% and 64.3% of the initial power conversion efficiency after storage in air(40%-50% relative humidity(RH)) at 25 ℃ for 1070 h and in N2at 85℃ for 800 h,***,the efficiency increases from 17.59% to 19.89% because of the passivation defect and enhanced hole-extraction ***,the NiO_(x)/Triton-based PSCs with Cs_(0.05)(MA_(0.15)FA_(0.85))_(0.95)Pb(I_(0.85)Br_(0.15))3perovskite as the light-absorbing layer also exhibits better moisture and thermal stability compared to the control devices,indicating the viability of our *** particular note,a champion PCE of 22.35% and 20.46% was achieved for small-area(0.1 cm^(2)) and large-area(1.2 cm^(2)) NiO_(x)/Triton-based devices,respectively.

关键词： Perovskite solar cells NiO_(x) Defect passivation Long-term stability Amphipathic molecule

High-Performance and Large-Area Inverted Perovskite Solar Cells Based on NiO_(x) Films Enabled with A Novel Microstructure-Control Technology

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Energy & Environmental Materials 2024年第1期7卷 153-159页

作者： Guibin Shen Xin Li Yuqin Zou hongye dong dongping Zhu Yanglin Jiang Xin Ren Ng Fen Lin Peter Müller-Buschbaum Cheng Mu Key Laboratory of Advanced Light Conversion Materials and Biophotonics Department of ChemistryRenmin University of ChinaBeijing 100872China Solar Energy Research Institute of Singapore(SERIS) National University of SingaporeSingapore 117574Singapore Physik-Department Lehrstuhl für Funktionelle MaterialienTechnische Universität MünchenJames-Franck-Straße 185748Garching Germany Heinz Maier-Leibnitz Zentrum(MLZ) Technische Universität MünchenLichtenbergstr.185748Garching Germany

The improvement in the efficiency of inverted perovskite solar cells(PSCs)is significantly limited by undesirable contact at the NiO_(x)/perovskite *** this study,a novel microstructure-control technology is proposed for fabrication of porous NiO_(x)films using Pluronic P123 as the structure-directing agent and acetylacetone(AcAc)as the coordination *** synthesized porous NiO_(x)films enhanced the hole extraction efficiency and reduced recombination defects at the NiO_(x)/perovskite ***,without any modification,the power conversion efficiency(PCE)of the PSC with MAPbl_(3)as the absorber layer improved from 16.50%to 19.08%.Moreover,the PCE of the device composed of perovskite Cs0.05(MA_(0.15)FA_(0.85))_(0.95)Pb(I_(0.85)Br_(0.15))_(3)improved from 17.49%to 21.42%.Furthermore,the application of the fabricated porous NiO_(x)on fluorine-doped tin oxide(FTO)substrates enabled the fabrication of large-area PSCs(1.2 cm^(2))with a PCE of 19.63%.This study provides a novel strategy for improving the contact at the NiO_(x)/perovskite interface for the fabrication of high-performance large-area perovskite solar cells.

关键词： interfacial contact inverted and large-area perovskite solar cells photovoltaic materials porous NiO_(x)films renewable energy

A facile route of preparing nickel oxide thin films for high-performance inverted perovskite solar cells

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A facile route of preparing nickel oxide thin films for high...

Breeding and High-yield Cultivation Techniques for Oil Sunflower New Variety"Xin Kui No.27"

第七届新型太阳能电池材料科学与技术学术研讨会

作者： Guibin Shen hongye dong Department of Chemistry Renmin University of China

Perovskite solar cells(PSCs) have been very popular in the field of *** the inverted PSC structure,the hole transport layer deposited before perovskite photoactive layer plays a crucial role in power conversion efficiencies(PCE) and ambient stability of ***,we developed a facile PMMA-assisted deposition method for preparing NiO film at low *** to the hydrogen bond effect between PMMA and nickel compounds,a full coverage and uniform NiO film was produced in deposition *** heat from decomposition of PMMA induced thermal treatment on Ni O arising around *** adding the polymer to the precursor solution,a high-performance NiO film for inverted PSCs was successfully fabricated on ITO substrates through a low temperature annealing *** with reported fabrication methods,this route has the advantages of simple,low temperature,and low-cost *** corresponding devices exhibited a champion power conversion efficiency(PCE) of 17.78% and good stability.

关键词： perovskite nickel oxide inverted solar cells

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Agricultural Biotechnology 2022年第1期11卷 40-42,46页

作者： Wei DUAN Shengli LIU Yantao LIU Peng WANG hongye dong Crop Institute of Xinjiang Academy of Agricultural Reclamation Shihezi 832000China

This paper introduced the breeding process,characteristics,yield performance,disease resistance,quality characters,and suitable production areas of the new early-maturing oil sunflower variety"Xin Kui No.27",and summarized high-yield cultivation techniques based on large-area continuous cultivation demonstration to serve agricultural production.

关键词： New variety of oil sunflower "Xin Kui No.27" Breeding Cultivation Technology

Breeding Technology of Sunflower Inbred Lines with Four Generations in One Year

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Agricultural Biotechnology 2022年第2期11卷 6-8页

作者： Wei DUAN Shengli LIU Yantao LIU Peng WANG hongye dong Zengshuai LYU Crop Research Institute Xinjiang Academy of Agricultural ReclamationShihezi 832000China

The breeding technology of sunflower inbred lines with four generations in one year was explored through the research on the biological characteristics of sunflower itself and the breeding status of sunflower inbred lines using the young embryo culture technology,the greenhouse seedling technology and field test planting,based on sunflower field breeding and planting combined with greenhouse *** reasonable selection of planting sites as the core of the breeding technology of sunflower inbred lines with four generations in one year is a *** can be taken 7-10 d after pollination to enter the next generation of cultivation,thus shortening the generational cultivation *** establishment of a breeding method of sunflower inbred lines with four generations in one year reduces the cost of breeding and has a practical role and significance for the field of sunflower inbred line breeding technologies.

关键词： Sunflower Inbred line Four generations in one year Breeding technology

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固定样本在经济统计分析中的应用

统计研究 2002年第8期19卷 55-57页

作者：肖红叶董麓天津财经学院南开大学经济学院

Data is the material when people do economic statistics *** the data will directly affect the research result,the quality of data is very *** data model and collecting data should be both under the guidance of the economic theory and statistic *** sample is one kind of research methods in analyzing social and economic problems,for it can joint cross section data and time series data,the research result it provides is often very *** should pay attention to it.

关键词：经济统计分析应用数据固定样本

High-performance perovskite solar cells with large grain-size obtained by the Urea additive

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High-performance perovskite solar cells with large grain-siz...

第七届新型太阳能电池材料科学与技术学术研讨会

作者： Qingbin Cai Zhichao Lin Xiaoning Wen Guibin Shen hongye dong Jingjing Yan Xiangning Xu Cheng Mu Department of Chemistry Renmin University of China

Perovskite solar cell has gained wide attention due to its excellent photoelectric performance and economical fabrication process,with high-efficiency perovskite solar cell could be achieved by optimizing film *** is a challenge to grow perovskite films with large crystalline grains and a full coverage on the surface of an organic compound film by a solution *** this work,we add Lewis-bases urea(U) to PbI precursor to control the growth and crystallization of perovskite film on the top of SnO for efficient hybrid cation perovskite solar *** perovskite film prepared by this method has large size grains of more than 5 μ m,smooth,no visible pinhole or crack found and high *** mechanism of the action can be explained by infrared *** the coordination of the lead ion that could accept electron pairs and the C=O bond in urea,introduction of urea in perovskite precursor solution to form MAI·PbI·DMSO·urea complex could significantly improve the photoelectric properties of the perovskite ***,the device fabricated with the concentration of 0.2 M urea showed a higher power conversion efficiency(22.2%) than that of the reference sample solar cell.

关键词： perovskite solar cell lewis-bases urea large size grains

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企业CEO权力影响银行贷款决策吗

财贸经济 2015年第7期36卷 81-95页

作者：李小荣董红晔张瑞君中财-鹏元地方财政投融资研究所 100081 中国长城资产管理公司博士后工作站 100045 中国人民大学商学院 100872

企业高管权力尤其是CEO权力的经济后果已经成为财务学研究的重点和热点问题。本文主要研究银行信贷决策是否考虑企业CEO权力大小和企业产权性质对CEO权力与银行贷款关系的影响。研究结果表明:(1)CEO权力的增大会显著降低银行贷款规模;(2... 详细信息

企业高管权力尤其是CEO权力的经济后果已经成为财务学研究的重点和热点问题。本文主要研究银行信贷决策是否考虑企业CEO权力大小和企业产权性质对CEO权力与银行贷款关系的影响。研究结果表明:(1)CEO权力的增大会显著降低银行贷款规模;(2)将银行贷款分为短期贷款和长期贷款,相较于长期贷款,银行更愿意给CEO权力大的企业短期贷款;(3)企业的国有属性显著降低了CEO权力大小与银行贷款规模的负相关关系。进一步的研究还显示,CEO权力大小与银行贷款规模的负相关关系在经济下行期存在;当企业同时在香港上市时,CEO权力与银行贷款规模的负相关关系不再存在。以上结论说明,CEO权力是影响银行贷款契约的重要因素。本文的研究丰富了高管权力经济后果和银行贷款方面的理论研究,同时对企业获取银行贷款和银行制定信贷合约具有重要启示。

关键词： CEO权力银行贷款企业产权

Silicon Dioxide Nanoparticles Increase the Incidence Depth of Short-Wavelength Light in Active Layer for High-Performance Perovskite Solar Cells

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Silicon Dioxide Nanoparticles Increase the Incidence Depth o...