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Semitransparent organic solar cells with high light utilization efficiency and color rendering index

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Science China Chemistry 2024年第7期67卷 2248-2256页

作者： Ni Gao Haij.n Bin Shangrong Wu RenéA.j.j.nssen Yongfang li Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor Materials and DevicesCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China j.angsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123China Molecular Materials and Nanosystems&Institute for Complex Molecular Systems Eindhoven University of TechnologyEindhoven 5600 MBthe Netherlands

Semitransparent organic solar cells(ST-OSCs)have garnered considerable attention as promising renewable energy technology for integrating photovoltaics into ***,there is a trade-off between power conversion efficiency(PCE)and average visible transmittance(AVT),which hinders the achievement of a high light utilization efficiency(LUE).In this study,we propose a valuable method to address this challenge by replacing the transparent top electrode,Ag,with a 20 nm layer of *** ST-OSCs based on the 20 nm Au electrode demonstrate superior exciton extraction,more efficient charge collection,and higher color-rendering index(CRI)due to their smoother surface,higher conductivity,and enhanced visible light transmittance,resulting in a significantly higher PCE of 13.67%and an enhanced AVT of 30.17%,contributing to a high LUE of 4.15%.Additionally,optically transparent dielectric layers,applied on the front and back sides of the ST-OSCs to further boost performance,delivered an impressive LUE of 4.93%,with PCE and AVT values reaching 14.44%and 34.12%,***,the champion ST-OSCs also exhibited a favorable CRI value of *** achievements represent the bestperforming ST-OSCs to date with both high LUE and CRI and hold significant implications for the prospective commercialization of ST-OSCs.

关键词： semitransparent organic solar cells power conversion efficiency average visible transmittance light utilization efficiency color-rendering index

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Neighbour effects on plant biomass and its allocation for forbs growing in heterogeneous soils

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j.urnal of Plant Ecology 2024年第4期17卷 90-99页

作者： Yongj.e liu Chunyan Ma Shiting liu Mingrui liu Hui li Mingxia Wang Guoe li Hans j.De Boeck Fuj.ang Hou Zhanhui Tang Zhenxin li State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems Key Laboratory of Grassland Livestock Industry InnovationMinistry of Agriculture and Rural AffairsCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou 730020China School of Ecology and Environmental Sciences Yunnan UniversityKunming 650091China Plant and Ecosystems(PLECO) Department of BiologyUniversity of AntwerpWilrijk B-2610Belgium State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration School of EnvironmentNortheast Normal UniversityChangchun 130117China Key Laboratory of Biodiversity and Environment on the Qinghai-Tibet Plateau Ministry of EducationLhasa 850011China

Focal plants are considerably affected by their neighbouring plants,especially when growing in heterogeneous soils.A previous study on grasses demonstrated that soil heterogeneity and species composition affected plant biomass and above-and belowground allocation *** now tested whether these findings were similar for *** forb species(*** anglica,limonium bicolor and Suaeda glauca)were grown in pots with three levels of soil heterogeneity,created by alternatively filling resource-rich and resource-poor substrates using small,medium or large patch *** compositions were created by growing these forbs either in monocultures or in *** showed that patch size×species composition significantly impacted shoot biomass,root biomass and total biomass of forbs at different ***,at the pot scale,shoot biomass,root biomass and total biomass increased with increasing patch *** the substrate scale,shoot biomass and total biomass were higher at the large patch size than at the medium patch size,both in resource-rich and resource-poor ***,at the community scale,monocultures had more shoot biomass,root biomass and total biomass than those in the two-or three-species *** results differ from earlier findings on the responses of grasses,where shoot biomass and total biomass decreased with patch size,and more shoot biomass and total biomass were found in resource-rich than resource-poor *** further elucidate the effects of soil heterogeneity on the interactions between neighbour plants,we advise to conduct longer-term experiments featuring a variety of functional groups.

关键词： biomass allocation neighbour effect patch size soil heterogeneity shoot biomass

Genetic Diversity of Structure of Remnant Populations in the Original Habitat of ***

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Genetic Diversity of Structure of Remnant Populations in the...

Magnetoelectric coupling of multilayered Pb(Zr0.52Ti0.48)O3-CoFe2O4 film by piezoresponse force microscopy under magnetic field

第五届全国生物多样性保护与持续利用研讨会

作者： H. Huang, j. li, X. li, D. Deng, Q. Cai, Z. He, j. Gong Wuhan Institute of Botany (Wuhan Botanical Garden), The Chinese Academy of Sciences, Wuhan 430074

＜正＞*** an ideal candidate for a case study in genetic structure of the relic species． Current Status of Habitat:1)Highly populated,2)Destruction for ***,3)No natural reproduction of seeds,4)Self-sustaining populat...

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Magnetoelectric coupling of multilayered Pb(Zr0.52Ti0.48)O3-...

Characterization of squash polysaccharide and the anti-diabetic effect on type 2 diabetic rat revealed by urine metabolomics analysis

第十二届全国物理力学学术会议

作者： S.-H.Xie Y.-M.liu j.-Y.li Faculty of Materials Optoelectronics and Physicsand Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of EducationXiangtan University Department of Mechanical Engineering University of Washington

Multiferroic Pb(ZrTi)O-CoFeO-Pb(ZrTi)O(PCP) laminated film has been synthesized by sol-gel process and spin coating,with the spinel structure of CoFeO and perovskite structure of Pb(ZrTi)O verified by X-ray *** good multiferroic properties of PCP film have been confirmed by ferroelectric and magnetic hysteresis loops,with leakage current substantially *** local magnetoelectric(ME) coupling has been verified using piezoresponse force microscopy under external magnetic field,showing magnetically induced evolution of piezoresponse and ferroelectric switching characteristics,with piezoresponse amplitude reduced and coercive voltage *** technique will be useful in characterizing local ME couplings for a wide range of multiferroic materials.

关键词： multiferroic laminated film piezoresponse force microscopy magnetoelectric coupling

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Food Science and Human Wellness 2024年第5期13卷 2937-2946页

作者： li liang Fuming Zhang Quanhong li Baoguo Sun Yuyu Zhang Robert j.linhardt Beij.ng Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor ChemistryBeijing Technology and Business University(BTBU)Beijing 100048China Departments of Chemical and Biological Engineering Chemistry and Chemical BiologyBiomedical Engineering and Biological ScienceCenter for Biotechnology and Interdisciplinary StudiesRensselaer Polytechnic InstituteTroy 12180USA College of Food Science and Nutritional Engineering China Agricultural UniversityBeijing 100083China China National Engineering Research Center for Fruit and Vegetable Processing Beijing 100083China

The present study reports the structural characteristics of 3 polysaccharide fractions(SPS-F1,SPS-F2 and SPS-F3)isolated and purified from ***-F1(molecular weight(Mw)=12.30 kDa)and SPS-F2(Mw=19.40 kDa)were likely to contain HG and RG-I domain of pectic polysaccharide,***-F2(Mw=270.4 kDa)was mainly composed of rhamnose,galactose and *** treatment with SPS decreased body weight gain,glucose and TG levels in type 2 diabetes ***,25 differential metabolites were identified based on urinary metabolomics analysis,which are crucial to the anti-diabetic effect of *** regulation of nicotinamide N-oxide,histamine,cis-aconitate,citrate,L-malic acid,3-(3-hydroxyphenyl)propanoic acid and N-acetyl-L-aspartic acid were mainly associated with energy metabolism,gut microbiota and *** of surface plasmon resonance revealed the binding kinetics with galectin-3(Gal-3)and fibroblast growth factor 2(FGF2).The K_(D)values of SPS-F2 and SPS-F3 to Gal-3 were 4.97×10^(-3)and 1.48×10^(-3)mol/L,indicating a weak binding *** 3 fractions showed moderate binding to FGF2 and the affinity was SPS-F3>SPS-F2>***,the metabolomics and SPR approach were proved to be a promising tool in exploring the anti-diabetes effects of SPS and provided a deep understanding of the mechanisms.

关键词： Polysaccharide Metabolomics Type 2 diabetes Surface plasmon resonance

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Theoretical and experimental study of a bi-stable piezoelectric energy harvester under hybrid galloping and band-limited random excitations

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Applied Mathematics and Mechanics(English Edition) 2024年第3期45卷 461-478页

作者： Haitao li Tianyu ZHENG Weiyang QIN Ruilan TIAN Hu DING j.C.j. liqun CHEN Department of Engineering Mechanics North University of ChinaTaiyuan 030051China Department of Engineering Mechanics Northwestern Polytechnical UniversityXi'an 710072China Department of Engineering Mechanics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai Frontier Science Center of MechnoinformaticsShanghai Institute of Applied Mathematics and MechanicsSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200072China School of Mechanical and Mechatronic Engineering University of Technology SydneyNew South Wales 2007Australia

In the practical environment,it is very common for the simultaneous occurrence of base excitation and *** the combined energy of vibration and wind with a single energy harvesting structure is *** this purpose,the effects of the wind speed and random excitation level are investigated with the stochastic averaging method(SAM)based on the energy *** results of the analytical prediction are verified with the Monte-Carlo method(MCM).The numerical simulation shows that the introduction of wind can reduce the critical excitation level for triggering an inter-well j.mp and make a bi-stable energy harvester(BEH)realize the performance enhancement for a weak base ***,as the strength of the wind increases to a particular level,the influence of the random base excitation on the dynamic responses is weakened,and the system exhibits a periodic galloping response.A comparison between a BEH and a linear energy harvester(LEH)indicates that the BEH demonstrates inferior performance for high-speed *** experiments are conducted to investigate the validity of the theoretical prediction and numerical *** experimental findings also show that strong random excitation is favorable for the BEH in the range of low wind ***,as the speed of the incoming wind is up to a particular level,the disadvantage of the BEH becomes clear and evident.

关键词： bi-stability inter-well response galloping band-limited random

DIRECT MEASUREMENTS OF ISOACTIVITY CURVES OF MgO IN THE TERNARY SLAG MgO-B_(2)O_(3)-SiO_(2)

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Acta Metallurgica Sinica(English Letters) 1996年第5期9卷 383-386页

作者： Z.C. Wang Y. Su S.X. Tong X. liu and R. j. li (Department of Chemistry Northeastern University), Shenyang 110006, China)

Isoactivity curves of MgO in the ternary slag MgO-B2O3-SiO2 have been determined at 1723 K using a slag-metal equilibrium technique in a common tin-bath medium. The results approximately fit a partial ideal solution m... 详细信息

关键词： isoactivity curve MgO-B_2O_3-SiO_2 slag-metal equilibrium common tin-bath medium

Constrained re-calibration of two-equation Reynolds-averaged Navier–Stokes models

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Theoretical & Applied Mechanics Letters 2024年第2期14卷 82-89页

作者： Yuanwei Bin Xiaohan Hu j.aqi li Samuel j.Grauer Xiang I.A.Yang Department of Mechanical Engineering Pennsylvania State UniversityUniversity ParkPA 16802USA State Key Laboratory for Turbulence and Complex Systems Peking UniversityBeijing 100871China College of Engineering Peking UniversityBeijing 100871China

Machine-learned augmentations to turbulence models can be advantageous for flows within the training dataset but can often cause harm *** lack of generalizability arises because the constants(as well as the functions)in a Reynolds-averaged Navier–Stokes(RANS)model are coupled,and un-constrained re-calibration of these constants(and functions)can disrupt the calibrations of the baseline model,the preservation of which is critical to the model's *** safeguard the behaviors of the baseline model beyond the training dataset,machine learning must be constrained such that basic calibrations like the law of the wall are kept *** letter aims to identify such constraints in two-equation RANS models so that future machine learning work can be performed without violating these *** demonstrate that the identified constraints are not ***,they help preserve the generalizability of the baseline model.

关键词： Machine learning Turbulence modeling Reynolds-averaged Navier-Stokes

j.A is required for arsenic trioxide induced apoptosis in HeLa and MCF-7 cells via reactive oxygen species and mitochondria linked signal pathway

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南京医科大学学报（自然科学版） 2008年第12期28卷 1648-1648页

作者： Zhou, j. H. Ye, j. Zhao, X. j. li, A. P. Zhou, j. W. Nanj.ng Med Univ Inst ToxicalSch Publ HlthDept Mol Cell Biol & ToxicolNanjing 210029Peoples R China