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Stabilizing semi-transparent perovskite solar cells with a polymer composite hole transport layer

Nano Research 2024年第3期17卷 1500-1507页

作者： Yongbin Jin huiping feng Zheng Fang Liu Yang Kaikai Liu Bingru Deng Jingfu Chen Xueling Chen Yawen Zhong Jinxin Yang Chengbo Tian Liqiang Xie Zhanhua Wei Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021China

Semi-transparent perovskite solar cells(ST-PSCs)have broad applications in building integrated ***,the stability of ST-PSCs needs to be improved,especially in n-i-p ST-PSCs since the doped 2,2',7,7'-tetrakis(N,N-di-p-methoxyphenyl-amine)-9,9'-spirobifluorene(Spiro-OMeTAD)is unstable at elevated temperatures and high *** this work,aπ-conjugated polymer poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophene-2-yl)-benzo[1,2-b:4,5-b']dithiophene))-alt-(5,5-(1',3'-di-2-thienyl-5',7'-bis(2-ethylhexyl)benzo[1',2'-c:4',5'-c']dithiophene-4,8-dione)](PBDB-T)is selected to form a polymer composite hole transport layer(HTL)with *** sulfur atom of the thiophene unit and the carbonyl group of the polymer interact with the undercoordinated Pb2+at the perovskite surface,which stabilizes the perovskite/HTL interface and passivates the interfacial *** incorporation of the polymer also increases the glass transition temperature and the moisture resistance of *** a result,we obtain ST-PSCs with a champion efficiency of 13.71%and an average visible light transmittance of 36.04%.Therefore,a high light utilization efficiency of 4.94%can be ***,the encapsulated device can maintain 84%of the initial efficiency after 751 h under continuous one-sun illumination(at 30%relative humidity)at the open circuit and the unencapsulated device can maintain 80%of the initial efficiency after maximum power tracking for more than 1250 h under continuous one-sun illumination.

关键词： semi-transparent solar cells π-conjugated polymer composite hole transport layer building integrated photovoltaics

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泮托拉唑与奥曲肽联用对上消化道溃疡合并出血患者疗效的影响

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智慧健康 2024年第5期10卷 59-62页

作者：冯会平徐州矿务集团第一医院消化内科江苏徐州221000

目的分析泮托拉唑联合奥曲肽治疗上消化道溃疡合并出血的效果。方法本研究以徐州矿务集团第一医院、第二医院消化内科在2018年9月—2023年7月收治的60例患有上消化道溃疡并发出血的患者为研究对象,随机分为对照组与试验组,每组30例,... 详细信息

目的分析泮托拉唑联合奥曲肽治疗上消化道溃疡合并出血的效果。方法本研究以徐州矿务集团第一医院、第二医院消化内科在2018年9月—2023年7月收治的60例患有上消化道溃疡并发出血的患者为研究对象,随机分为对照组与试验组,每组30例,在常规治疗的基础上,对照组用奥曲肽单药物治疗,试验组使用泮托拉唑联合奥曲肽治疗,两组患者均连续治疗7d,比较两组患者治疗前与治疗后的治疗效果,血清血红蛋白、网织红细胞、尿素氮水平和不良反应发生率。结果试验组总有效率高于对照组,差异有统计学意义(P0.05),提示两种药物联用对消化道出血病人的安全性较好。结论泮托拉唑联合奥曲肽对上消化道溃疡合并出血的效果显著,可以有效控制出血,不良反应事件发生率小,安全性好。

关键词：泮托拉唑奥曲肽上消化道溃疡上消化道出血

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糖尿病胰岛素抵抗患者达格列净治疗决策用药方案的构建及应用实践

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糖尿病新世界 2024年第4期27卷 63-66页

作者：张晓玲肖晓琳颜昕冯惠平福建医科大学附属漳州市医院药学部福建漳州363000 福建医科大学附属漳州市医院乳腺外科福建漳州363000

目的探讨糖尿病胰岛素抵抗患者达格列净治疗决策用药方案的构建及应用实践效果。方法选取2022年3月—2023年4月福建医科大学附属漳州市医院外科收治的78例糖尿病胰岛素抵抗患者为研究对象,按照摸球法采用1∶1分配原则,将患者分为观察组... 详细信息

目的探讨糖尿病胰岛素抵抗患者达格列净治疗决策用药方案的构建及应用实践效果。方法选取2022年3月—2023年4月福建医科大学附属漳州市医院外科收治的78例糖尿病胰岛素抵抗患者为研究对象,按照摸球法采用1∶1分配原则,将患者分为观察组与对照组,各39例。对照组采用常规的用药模式,观察组采用治疗决策用药方案,比较两组的治疗效果。结果与对照组相比,观察组治疗总有效率较高,差异有统计学意义(P<0.05)。观察组的血糖相关水平以及胰岛功能优于对照组,差异有统计学意义(P均<0.05)。观察组不良反应总发生率低于对照组,差异有统计学意义(P<0.05)。结论基于治疗决策用药方案,对糖尿病抵抗患者增加达格列净药物的治疗效果较为显著,能够在一定程度上改善患者的血糖水平以及提高治疗效果,改善患者的胰岛功能以及减少不良反应的发生。

关键词：糖尿病胰岛素抵抗胰岛功能达格列净用药方案

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Tensile behavior of AA3104 aluminum sheets at low deformation degree

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Journal of University of Science and Technology Beijing 2005年第5期12卷 422-426页

作者： Quancang Ma Weimin Mao huiping feng Materials Science and Engineering School University of Science and Technology Beijing Beijing 100083 China State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China

The texture of a rolled AA3104 aluminum sheet was measured by the X-ray transmission method. The Lankford values or r values （ratio of plastic strain） and yield strengths in directions of 0, 15, 30, 45, 60, 75, and 90° to RD （rolling direction） of the sheet were tested during tensile loading at a strain of 2%. γ values were predicted by the Sachs model and the reaction stress model in consideration of the measured texture. The simulated results indicate that r values calculated by the Sachs model are more exactly approaching with the experimental values on the whole than those predicted by the reaction stress model. The deformation behavior of the AA3104 aluminum sheet reveals characteristic predicted by the Sachs model, which should be resulted from the sheet geometry different from bulk material as well as the low tensile deformation degree.

关键词： γ value yield strength texture AA3104 aluminum sheet tension deformation

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Relationship between texture and residual macro-strain in CVD diamond films based on phenomenological analysis

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Journal of University of Science and Technology Beijing 2008年第2期15卷 197-201页

作者： Weimin Mao Hongxi Zhu Leng Chen huiping feng School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China State Key Laboratory of Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China

The relationship between texture and elastic properties of chemical vapor deposition （CVD） diamond films was analyzed based on the phenomenological theory, which reveals the influence of crystalline orientation and texture on the residual macro-strain and macro-stress. The phenomenological calculations indicated that the difference in Young＇s modulus could be 15% in single diamond crystals and 5% in diamond films with homogeneously distributed strong fiber texture. The experimentally measured residual strains of free-standing CVD diamond films were in good agreement with the correspondingly calculated Young＇s modulus in connection with the multi-fiber textures in the films, though the difference in Young＇s modulus induced by texture was only around 1%. It is believed that texture should be one of the important factors influencing the residual stress and strain of CVD diamond films.

关键词： diamond films elastic behavior texture residual stresses chemical vapor deposition (CVD)

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Measurement and Simulation of Grain Size in Strong Textured and Coarse-Grained Metal Sheets

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Journal of Materials Science & Technology 2003年第Z1期19卷 115-116页

作者： Leng CHEN Weimin MAO Yongning YU huiping feng Department of Materials University of Science and Technology Beijing Beijing 100083 China Department of Materials University of Science and Technology Beijing Beijing 100083 China Department of Materials University of Science and Technology Beijing Beijing 100083 China Department of Materials University of Science and Technology Beijing Beijing 100083 China

An X-ray diffractometer that equipped with a two-dimensional detector is used for developing the technique of grainsize measurement for strong textured and coarse-grained Si steel sheet. The method is based on the concept thatthe position of diffraction spots depends on the orientation of individual grains. The two-dimensional detector hasthe ability to collect abundant diffraction information in seconds, thus it can be determined rapidly and accuratelywhether a series of diffraction spots come from the same grain. The experimental results show that this method canbe used for measuring grain size and its distribution in strong textured and coarse-grained metal sheets.

关键词： Grain size, Texture, Two-dimensional detectorLeng

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Effect of Trace Sn on Pitting Behaviors of High Voltage Anode Aluminum Foil

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Journal of Materials Science & Technology 2008年第5期24卷 718-722页

作者： Jingbo SONG Weimin MAO Hong YANG huiping feng Department of Materials University of Science and Technology Beijing Beijng 100083 China State Key Laboratory of Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China

The effect of trace Sn on the pitting morphology of high voltage anode aluminum foils was investigated. The distributions of microelement Sn, Fe, Si, Cu and Mg in the surface layer of aluminum foils with different Sn content were determined by using a secondary ion mass spectrometer. It was found that the micro-alloyed Sn is enriched at the external surface. The mechanism of pitting behavior of trace Sn on aluminum surface is similar with that of lead. Enrichment of Sn in the surface layer provides large numbers of sites for initiation of pitting corrosion, while pitting sites appeared relatively inhomogenously in the foils without Sn. Sn, as an eco-friendly microelement, can be applied to replace Pb in improving the homogenous pitting behaviors of high voltage aluminum foils, in which the volume fraction of cube texture is not reduced.

关键词： Electrolytic capacitor Aluminum foil Sn Pitting corrosion

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Ethylene thiourea exposure induces neurobehavioral toxicity in zebrafish by disrupting axon growth and neuromuscular junctions

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Journal of Environmental Sciences 2024年第3期137卷 108-119页

作者： Jingming Wang Zhiquan Yu Yongfeng Wang Yuanyao Chen Lin Xiao Yanjun Zong Qiyuan feng Lianqi Peng huiping Zhang Chunyan Liu Institute of Reproductive Health Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Ethylene thiourea(ETU)converted from ethylene bisdithiocarbamate(EBDC)fungicides has aroused great concern because of its prevalence and harmful *** ETU-induced neurotoxicity has been reported,the potential mechanisms remain *** study provided insights into its neurotoxic effects at environmentally relevant concentrations in *** findings showed that embryonic exposure to ETU decreased the hatch rate and delayed somite ***,ETU treatment significantly reduced the dark velocity in the locomotion *** upregulated tendency of the mitogen-activated protein kinases(MAPK)pathway(mknk1,atf4,mapkapk3)screened by transcriptome analysis implied motor neuron degeneration,which was validated by subsequent morphological observation,as axon length and branches were truncated in the 62.5μg/L ETU ***,although the rescue experiment with a p38 MAPK inhibitor(SB203580)successfully ameliorated axon degeneration,it failed to reverse the locomotion *** exploration of transcriptome data revealed the varied expression of presynaptic scaffold protein-related genes(pcloa,pclob,bsna),whose downregulation might impair the neuromuscular junction(NMJ).Therefore,we reasonably suspected that ETU-induced neurobehavioral deficits might result from the combined effects of the MAPK pathway and presynaptic *** this,we highlighted the necessity to take precautions and early interventions for susceptible ETU-exposed populations.

关键词： Ethylene thiourea(ETU) Behavior Neuromuscular junction MAPK signaling pathway Piccolo and bassoon Danio rerio

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Sputtering under Mild Heating Enables High-Quality ITO for Efficient Semi-Transparent Perovskite Solar Cells

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Journal of Renewable Materials 2022年第10期10卷 2509-2518页

作者： Yongbin Jin Zheng Fang Liu Yang Kaikai Liu Mingliang Li Yaping Zhao Yujie Luo huiping feng Bingru Deng Chengbo Tian Changcai Cui Liqiang Xie Xipeng Xu Zhanhua Wei Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen361021China MOE Engineering Research Center for Brittle Materials Machining Huaqiao UniversityXiamen361021China

Semi-transparent perovskite solar cells(ST-PSCs)are promising in building-integrated photovoltaics(BIPVs)and tandem solar cells(TSCs).One of the keys to fabricate high-performance ST-PSCs is depositing efficient transparent *** tin oxide(ITO)is an excellent transparent conductive oxide with good light transmittance and high ***,the high sheet resistance of ITO sputtered at room temperature leads to the low fill factor(FF)and poor power conversion efficiency(PCE)of the ***,we study the effect of the sputtering temperature on the properties of ITO and the performance of *** find that when the sputtering temperature increases from the room temperature to 70℃,the crystallinity of the sputtered ITO gradually ***,the sheet resistance decreases and the corresponding device performance ***,once the sputtering temperature further increases over 70℃,the underlying hole transport layer will be damaged,leading to poor device ***,the optimized mild heating temperature of 70℃is applied and we obtain ST-PSCs with a champion PCE of 15.21%.We believe this mild heating assisted sputtering method is applicable in fabricating BIPVs and TSCs.

关键词： Indium tin oxide sputtering temperatures semi-transparent perovskite solar cells

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Efficient Semi‑Transparent Wide‑Bandgap Perovskite Solar Cells Enabled by Pure‑Chloride 2D‑Perovskite Passivation

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Nano-Micro Letters 2023年第8期15卷 35-48页

作者： Liu Yang Yongbin Jin Zheng Fang Jinyan Zhang Ziang Nan Lingfang Zheng Huihu Zhuang Qinghua Zeng Kaikai Liu Bingru Deng huiping feng Yujie Luo Chengbo Tian Changcai Cui Liqiang Xie Xipeng Xu Zhanhua Wei Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021People’s Republic of China MOE Engineering Research Center for Brittle Materials Machining Institute of Manufacturing EngineeringCollege of Mechanical Engineering and AutomationHuaqiao UniversityXiamen 361021People’s Republic of China Gold Stone(Fujian)Energy Company Limited Quanzhou 362005People’s Republic of China Collaborative Innovation Center of Chemistry for Energy Materials Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005People’s Republic of China

Wide-bandgap(WBG)perovskite solar cells suffer from severe non-radiative recombination and exhibit relatively large opencircuit voltage(V_(OC))deficits,limiting their photovoltaic ***,we address these issues by in-situ forming a well-defined 2D perovskite(PMA)_(2)PbCl_(4)(phenmethylammonium is referred to as PMA)passivation layer on top of the WBG active *** 2D layer with highly pure dimensionality and halide components is realized by intentionally tailoring the side-chain substituent at the aryl ring of the post-treatment ***-principle calculation and single-crystal X-ray diffraction results reveal that weak intermolecular interactions between bulky PMA cations and relatively low cation-halide hydrogen bonding strength are crucial in forming the well-defined 2D ***(PMA)_(2)PbCl_(4)forms improved type-I energy level alignment with the WBG perovskite,reducing the electron recombination at the perovskite/hole-transport-layer *** this strategy in fabricating semi-transparent WBG perovskite solar cells(indium tin oxide as the back electrode),the V_(OC)deficits can be reduced to 0.49 V,comparable with the reported state-of-the-art WBG perovskite solar cells using metal ***,we obtain hysteresis-free 18.60%-efficient WBG perovskite solar cells with a high V_(OC)of 1.23 V.

关键词： Wide-bandgap perovskite solar cells Transparent back electrodes Defect passivation Bulky cations

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