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Semicrystalline Unfused Polymer Donors with Backbone Halogenation toward Cost-Effective Organic Solar Cells

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Chinese journal of Chemistry 2024年第7期42卷 752-759页

作者： Yuxin Kong Shijie ju Hongmei Qin Min Hun jee Simeng Xia jiaqi Ren Chao Gao jianyu Yuan Wenyan Su han Young Woo Yuxiang Li School of Materials Science and Engineering Xi'an University of Science and TechnologyXianShaanxi 710054China Department of Chemistry Korea UniversitySeoul 02841Republic of Korea Xi'an Key Laboratory of Liquid Crystal and Organic Photovoltaic Materials State Key Laboratory of Fluorine&Nitrogen ChemicalsXi'an Modern Chemistry Research InstituteXi'anShaanxi 710065China jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices Institute of Functional Nano&Soft Materials(FUNSOM)Soochow University199 Ren'ai RoadSuzhouJiangsu 215123China

Developing novel unfused building blocks with simple synthesis and low cost is essential to advance and enrich cost-effective poly-mer donors;however,it remains a challenge due to the lack of efficient molecular ***,a class of low-cost and fully unfused polymer donors with precisely regulated backbone planarity via halogenation was designed and synthesized,namely PDTBTBz-2H,PDTBTBz-2F,and *** polymer donors possess a four-step synthesis route with over 80%yield from cheap raw chemicals comparable to existing low-cost polymer donors,such as *** from the planar backbone via in-corporating the F…S non-covalent interactions,PDTBTBz-2F exhibits more robust j-type aggregation in solution and a long-ranged molecular stacking in film relative to PDTBTBz-2H and ***,the systematical study of PDTBTBz-based organic so-lar cells(OSCs)reveals the close relationship between optimized molecular self-assembly and charge separation/transport regarding backbone halogenation when paired with the non-fullerene acceptor(Y6-BO-4F).As a result,the photovoltaic devices based on semicrystalline PDTBTBz-2F achieved a promising power conversion efficiency(PCE)of 12.37%.Our work highlighted the influence of backbone halogenation on the molecular self-assembly properties and a potential unfused backbone motif for further developing cost-effective OSCs.

关键词： Low-cost Polymer donors Backbone halogenation Molecular self-assembly Organic solar cells

Dear-DIA^(XMBD): Deep Autoencoder Enables Deconvolution of Data-Independent Acquisition Proteomics

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Research 2024年第1期6卷 707-720页

作者： Qingzu He Chuan-Qi Zhong Xiang Li Huan Guo Yiming Li Mingxuan Gao Rongshan Yu Xianming Liu Fangfei Zhang Donghui Guo Fangfu Ye Tiannan Guo jianwei Shuai jiahuai han Department of Physics and Fujian Provincial Key Laboratory for Soft Functional Materials ResearchXiamen UniversityXiamen 361005China Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)and Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhouZhejiang 325001China School of Life Sciences Xiamen UniversityXiamen 361102China State Key Laboratory of Cellular Stress Biology Innovation Center for Cell Signaling NetworkXiamen 361102China Department of Computer Science Xiamen UniversityXiamen 361005China National Institute for Data Science in Health and Medicine School of MedicineXiamen UniversityXiamen 361102China Bruker(Beijing)Scientific Technology Co.Ltd. BeijingChina Westlake Laboratory of Life Sciences and Biomedicine Key Laboratory of Structural Biology of Zhejiang ProvinceSchool of Life SciencesWestlake University18 Shilongshan RoadHangzhou 310024China Institute of Basic Medical Sciences Westlake Institute for Advanced Study18 Shilongshan RoadHangzhou 310024China Westlake Omics Ltd. Yunmeng Road 1HangzhouChina Department of Electronic Engineering Xiamen UniversityXiamen 361005China

Data-independent acquisition(DIA)technology for protein identification from mass spectrometry and related algorithms is developing *** spectrum-centric analysis of DIA data without the use of spectra library from data-dependent acquisition data represents a promising *** this paper,we proposed an untargeted analysis method,Dear-DIA^(XMBD),for direct analysis of DIA ***-DIA^(XMBD) first integrates the deep variational autoencoder and triplet loss to learn the representations of the extracted fragment ion chromatograms,then uses the k-means clustering algorithm to aggregate fragments with similar representations into the same classes,and finally establishes the inverted index tables to determine the precursors of fragment clusters between precursors and peptides and between fragments and *** show that Dear-DIA^(XMBD) performs superiorly with the highly complicated DIA data of different species obtained by different instrument platforms.

关键词： Deep Auto Independent

Structural design of aeroengine radiators:State of the art and perspectives

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Propulsion and Power Research 2024年第3期13卷 319-334页

作者： Cheng-Wei Fei Chen Li jia-Yi Lin Yao-jia han Yat-Sze Choy Chuan-Hai Chen Department of Aeronautics and Astronautics Fudan UniversityShanghai 200433China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHong Kong 999077China Key Laboratory of CNC Equipment Reliability Ministry of EducationJilin UniversityChangchun 130015China

Structural modularization,lightweight and functional integration are the urgent devel-opment directions for next generation high-performance *** concentration during aeroengine operation would lead to local high temperature,which tremendously negative impacts on aeroengine structural life and ***,the design and optimization of radiator structures are significant for the efficiency and reliability of *** structural geometry design and layout optimization of radiators is promising to improve the heat dissipation efficiency and reduce aerodynamic *** purpose of this study is to investigate the state of the art and perspectives of aeroengine radiator structural design by a comprehensive literature *** main contents involve the review on the structural design and layout optimization technologies of radiator structures,the analyses of the structural features,design theory and methods of existed radiator structures,the induction of the theory and method of different radiators structural opti-mization design,and the discussion on the application perspectives of advanced structures in aeroengine radiators,the report on the current challenges and development directions of the design of radiator structures,including smart materials,lattice structures,variable structures,advanced optimization theories and methods,heat dissipation methods and so *** efforts of this study are promising to support the high-performance and lightweight design of aeroengine structures besides radiators,and thermal management system.

关键词： Aeroengine Radiator structure Smart structure Structure design Advanced materials

预处理温度对NiCoCrAlYHf涂层氧化行为及表面粗化机制的影响

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表面工程与再制造 2024年第1期24卷 61-62页

作者： Pan Li Xueling Fan Pin Lu han Wang Xiaochao jin Xi'an Key Laboratory of Extreme Environmental and Protection Technology School of Aerospace Engineering Xi'an Jiaotong University Xi'an 710049 China

NiCoCrAlYHf涂层作为热障涂层体系中的粘结层已得到广泛应用,其服役过程中的氧化行为和表面粗化机制受预处理温度的影响较大。为明确预处理温度的影响,对预处理涂层和等温暴露涂层的特性进行了表征和分析,包括微观结构、重量变化、热生... 详细信息

NiCoCrAlYHf涂层作为热障涂层体系中的粘结层已得到广泛应用,其服役过程中的氧化行为和表面粗化机制受预处理温度的影响较大。为明确预处理温度的影响,对预处理涂层和等温暴露涂层的特性进行了表征和分析,包括微观结构、重量变化、热生长氧化物(TGO)厚度和表面粗糙度。

关键词：粗化机制热障涂层预处理温度表面粗糙度氧化行为 NiCoCrAlY 粘结层重量变化

Asymmetric Cu Sites for Enhanced CO_(2)Electroreduction to C_(2+)Products

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CCS Chemistry 2024年第5期6卷 1231-1239页

作者： Weiwei Guo Xingxing Tan Shunhan jia Shoujie Liu Xinning Song Xiaodong Ma Limin Wu Lirong Zheng Xiaofu Sun Buxing han Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and ThermodynamicsCenter for Carbon Neutral ChemistryInstitute of ChemistryChinese Academy of SciencesBeijing 100190 Institute of Molecular Metrology College of Chemistry and Chemical EngineeringQingdao UniversityQingdao 266071 School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049 School of Materials Science and Engineering Anhui UniversityHefei 230601 Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049 Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062

Cu-based electrocatalysts can have excellent activity for the generation of C_(2+)products from a CO_(2)reduction reaction(CO_(2)RR).Cuδ+species is crucial in tuning the performance of the ***,we discovered that Si-doped Cu catalysts had excellent performance for electrochemical CO_(2)to C_(2+)products.A high Faradaic efficiency(FE)of 84.7%was achieved with a current density of 289mA cm^(−2)in the flow-cell *** situ experimental results showed that the significant reconstruction occurred during the electrolysis,resulting in the formation of the asymmetric Cu sites(Cu^(0)-Cu^(+)).The ratio of Cu^(0)and Cu^(+)could be tuned by changing Si *** experiments and theoretical calculations demonstrated that the asymmetric Cu sites caused by the appropriate Si doping promoted CO_(2)activation and strengthened the adsorption of^(*)CO *** was beneficial to the subsequent^(*)CO–^(*)CO dimerization step,and thus,accounted for the enhancement of C_(2+)selectivity.

关键词： carbon dioxide electrocatalysis asymmetric Cu sites C-C coupling green chemistry

Gehua jiejiu Dizhi decoction(葛花解酒涤脂汤)ameliorates alcoholic fatty liver in mice by regulating lipid and bile acid metabolism and with exertion of antioxidant stress based on 4DLabel-free quantitative proteomic study

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journal of Traditional Chinese Medicine 2024年第2期44卷 277-288页

作者： han Min YI Xu YOU Shaowei WU Xueli WANG Shuoshi HE Diancheng Guizhou University of Traditional Chinese Medicine Graduate SchoolGuiyang 550025China Department of Clinical medical laboratory Department of Gastroenterologythe Second Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang 550003China

OBjECTIVE:To analyze the effect and molecular mechanism of Gehua jiejiu Dizhi decoction(葛花解酒涤脂汤,GjDD)on alcoholic fatty live disease(AFLD)by using proteomic ***:The male C57BL/6j mouse were randomly divided into four groups:control group,model group,GjDD group and resveratrol *** the AFLD model was successfully prepared by intragastric administration of alcohol once on the basis of the Lieber-DeCarli classical method,the GjDD group and resveratrol group were intragastrically administered with GjDD(4900 mg/kg)and resveratrol(400 mg/kg)respectively,once a day for 9 *** fat deposition of liver tissue was observed and evaluated by oil red O(ORO)staining.4DLabel-free quantitative proteome method was used to determine and quantify the protein expression in liver tissue of each experimental *** differentially expressed proteins were screened according to protein expression differential multiples,and then analyzed by Gene ontology classification and Kyoto Encyclopedia of Genes and Genomes pathway ***,expression validation of the differentially co-expressed proteins from control group,model group and GjDD group were verified by targeted proteomics quantification ***:In semiquantitative analyses of ORO,all kinds of steatosis(ToS,MaS,and MiS)were evaluated higher in AFLD mice compared to those in GjDD or resveratroltreated mice.4DLabel-free proteomics analysis results showed that a total of 4513 proteins were identified,of which 3763 proteins were quantified and 946 differentially expressed proteins were *** with the control group,145 proteins were up-regulated and 148 proteins were down-regulated in the liver tissue of model *** addition,compared with the model group,92 proteins were up-regulated and 135 proteins were downregulated in the liver tissue of the GjDD group.15 differentially co-expressed proteins were found between every two groups(model group vs control group,GjDD group vs model group an

关键词： fatty liver alcoholic 4DLabel-free quantitative proteome targeted protein quantification Gehua jiejiu Dizhi decoction

Fjord-Type AIEgens Based on Inherent Through-Space Conjugation

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CCS Chemistry 2024年第7期6卷 1739-1747页

作者： Ye-Qiang han Yuan Xie jianyu Zhang Shiyu Tan Haoke Zhang Ben Zhong Tang jonathan L.Sessler Feihe Huang Stoddart Institute of Molecular Science Department of ChemistryZhejiang UniversityHangzhou 310058 Zhejiang-Israel joint Laboratory of Self-Assembling Functional Materials ZJU-Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou 311215 MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310058 Center for AIE Research College of Materials Science and EngineeringShenzhen UniversityShenzhen 518061 Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionThe Hong Kong University of Science and TechnologyKowloonHong Kong 999077 School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen(CUHK-Shenzhen)Guangzhou 518172 Department of Chemistry The University of Texas at AustinAustinTexas 78712-1224 Green Catalysis Center and College of Chemistry Zhengzhou UniversityZhengzhou 450001

Through-space conjugation(TSC)is a noncovalently electronic interaction that is emerging as a potential complement to through-bond conjugation(TBC)-based strategies for constructing luminescent ***,the design of efficient luminogens based on TSC is currently challenging due to a lack of established structure-property *** is particularly true in the case of luminogens displaying aggregation-induced emission(AIE)*** this work,three terphenyl derivatives were prepared,and their photophysical properties were systemically *** was found that relative to the corresponding m-and p-linked analogues,the electronic interaction of TBC is weakened while the strength of TSC is commensurately enhanced in the constitutional isomer containing an o-linked fjordtype *** this set of luminogens,the presence of a fjord-type arrangement promotes a transformation from aggregation-caused quenching to *** investigations involving congeneric quaterphenyl and pentphenyl isomers support the universality of the fjord-type unit as a framework for synthesizing AIE-active luminogens(AIEgens)with inherent *** work not only provides a novel set of AIEgens but also establishes the utility of TSC in controlling the photophysical properties of nonconventional and twisted luminogens.

关键词： fjord-type through-space conjugation through-bond conjugation aggregation-induced emission luminescence twisted conformation

Sandwich-like Heterochromophore Metallo-Supramolecules Based on Dense Chromophore Arrangements with Energy and Chirality Transfer Properties

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CCS Chemistry 2024年第5期6卷 1264-1277页

作者： Ningxu han jianjun Ma Hao Yu junjuan Shi Qixia Bai Xin jiang Zhe Zhang Pingshan Wang jing Yu Ming Wang State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchunJilin 130012 Institute of Environmental Research at Greater Bay Area Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhouGuangdong 510006 School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798

Multichromophoric architectures with wellorganized chromophoric arrangements are of vital importance to gain insights into interchromophoric ***,we report a novel heteroleptic self-assembly strategy and construct three achiral and one chiral sandwich-like heterochromophore complexes(Zn_(4)L^(G)L^(A-C)_(2)and Zn_(4)L_(G)L^(D)_(2)).Possible dynamic products,including homoleptic oligomers and isomers,are eliminated,producing achiral complexes with exceptional *** are observed in chiral complexes due to the flexible geometry of *** aligned chromophore arrangements with precise spacing and orientations are evidenced by single-crystal X-ray *** distinct segments in the ligands lead to different interchromophoric ***,energy transfer and tunable emission,including white-light emission,are achieved for Zn_(4)L^(G)L^(A)_(2)and Zn_(4)L^(G)L^(B)_(2).In addition,chirality transfer is observed for Zn_(4)L_(G)L^(D)_(2),due to conformational restriction from chiral LD,leading to chiral rotational conformations of tetraphenylethylene moiety in LG.

关键词： heterochromophore complexes fluorescence single crystal dissymmetrical ligands chirality

Third-order nonlinear wavelength conversion in chalcogenide glass waveguides towards mid-infrared photonics

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Chinese Physics B 2024年第10期33卷 269-274页

作者： Fengbo han jiaxin Gu Lu Huang hang Wang Yali Huang Xuecheng Zhou Shaoliang Yu Zhengqian Luo Zhipeng Dong Qingyang Du Fujian Key Laboratory of Ultrafast Laser Technology and Applications Xiamen UniversityXiamen 361005China Zhejiang Laboratory Hangzhou 311100China

The increasing demand in spectroscopy and sensing calls for infrared(mid-IR)light ***,we theoretically investigate nonlinear wavelength conversion of Ge_(28)Sb_(12)Se_(60)chalcogenide glass waveguide in the mid-IR spectral *** waveguide dispersion engineering,we predict generation of over an octave wavelength(2.8μm-5.9μm)tuning range Raman soliton self-frequency shift,over 2.5 octaves wavelength cover range supercontinuum(1.2μm-8.0μm),as well as single soliton Kerr comb generated in suspended Ge_(28)Sb_(12)Se_(60)*** findings evidenced that Ge_(28)Sb_(12)Se_(60)chalcogenide glass waveguides can simultaneously satisfy the generation of Raman soliton self-frequency shift,supercontinuum spectrum,and Kerr frequency comb generation through dispersion engineering towards mid-IR on chip.

关键词： chalcogenide glass Raman soliton self-frequency shift supercontinuum soliton Kerr comb