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An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： Shuai Xu Youdi Zhang Yanna Sun Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo Ke Gao Key Laboratory of Advanced Green Functional Materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China State Key Laboratory and Institute of Elemento‑Organic Chemistry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China tianjin Key Laboratory of Molecular Optoelectronic Sciences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture *** approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关键词： Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management

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2D phosphides heterostructures on titanium microfiltration membrane for enhanced ampere-level current density overall seawater splitting

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Nano Research 2025年第1期18卷 249-259页

作者： Wenjing Dai Xin Wang Yulong Ma Sisi He Ming Chen Zhaohui Yin Shuheng Tian Maolin Wang Shixiang Yu Hang Zhang Yuanzhe Wang Hong Wang Jianxin Li Faming Gao Bowen Cheng Yun Wang Zhen Yin Ding Ma tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization College of Chemical Engineering and Materials ScienceTianjin University of Science and TechnologyTianjin 300457China State Key Laboratory of Biobased Fiber Manufacturing Technology Tianjin University of Science and TechnologyTianjin 300457China Haian Institute of High-Tech Research Nanjing UniversityHaian 226600China Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Separation Membranes and Membrane Processes Separation Membrane Science and Technology International Joint Research CentreTiangong UniversityTianjin 300387China centre for Catalysis and Clean Energy School of Environment and ScienceGold Coast CampusGriffith UniversitySouthportQueensland 4222Australia

The advancement of direct seawater electrolysis is a significant step towards sustainable hydrogen production,addressing the critical need for renewable energy sources and efficient resource ***,direct seawater electrolysis has to face several challenges posed by the corrosiveness of highly concentrated chloride and the competitive chlorine evolution reaction(ClER).To overcome these issues,we designed a novel NiP_(2)@CoP electrocatalyst on a porous titanium microfiltration(Ti MF)*** obtained bifunctional NiP_(2)@CoP catalyst outperforms the Pt/C and IrO_(2),as evidenced by its low overpotentials of 192 and 425 mV at a current density of 500 mA·cm^(-2) for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)in alkaline seawater(1 M KOH+0.5 M NaCl),***,only 231 and 569 mV overpotentials are required at the current density of 1500 mA·cm^(-2) towards HER and OER in alkaline seawater,*** importantly,no ClER was observed,demonstrating its excellent selectivity to *** selection of porous Ti MF membrane as an electrode substrate further enhances the performance by providing a robust structure that promotes the fast generation and release of gas *** promising outcomes obtained with NiP_(2)@CoP catalysts on Ti MF support,therefore,pave the way for the commercial viability of direct seawater electrolysis technologies at industrial-level current densities.

关键词： direct seawater electrolysis porous titanium microfiltration membrane phosphides heterostructures NiP_(2)@CoP electrocatalyst excellent selectivity to oxygen evolution reaction(OER)

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Microstructural evolution and mechanical behavior of in situ synthesized MgAl_(2)O_(4)whiskers reinforced 6061 Al alloy composite after hot extrusion and annealing

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Rare Metals 2023年第5期42卷 1732-1742页

作者： Geng Hao Chun-Sheng Shi Nai-Qin Zhao En-Zuo Liu Chun-Nian He Fang He Li-Ying Ma School of Materials Science and Engineering Tianjin UniversityTianjin 300350China tianjin Key Laboratory of Composite and Functional Materials Tianjin UniversityTianjin 300350China Collaborative Innovation centre of Chemical Science and Engineering Tianjin 300072China

In situ synthesized MgAl2O4whiskers reinforced 6061 Al alloy composites were fabricated by a powder metallurgy ***-sized MgAl2O4spinel whiskers distributed uniformly in 6061 Al alloy matrix without any interfacial product and laid along the extrusion direction after hot ***-extruded composite samples were annealed at 530,580,600 and 630℃for 1 h and examined by electron backscattered diffraction to investigate the recrystallization behavior of obtained *** and texture evolution was investigated,and it is found that the recrystallization process is inhibited by whiskers because of Zener *** fibrous grains remain until 630℃,and deformation textures still exist even in specimen annealed at 630℃.Hardness and tensile tests show that the completely recrystallized sample has an ultimate tensile strength of 218 MPa and a hardness of HV52 compared with 283 MPa and HV 69 of the unannealed *** properties of the annealed samples decline slightly with annealing temperature increasing up to 600℃.

关键词： Composite In situ synthesized whiskers Recrystallization Microstructure Texture

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Thermal properties,structure,and morphology of discontinuous solid solutions between phenanthrene and carbazole

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Particuology 2021年第1期19卷 156-163页

作者： Zaixiang Zhang Chang Wang Yaohui Huang Ling Zhou Qiuxiang Yin School of Chemical Engineering and Technology State Key Laboratory of Chemical EngineeringTianjin UniversityTianjin 300072China The Co-Innovation centre of Chemistry and Chemical Engineering of tianjin Tianjin UniversityTianjin 300072China

Two methods,namely solid-state grinding and solution crystallization,were used to prepare discontinuous solid solutions of phenanthrene(PHE)-carbazole(CAR)with different PHE and CAR molar *** thermal properties and structure of the solid solutions were analyzed using differential scanning calorimetry,hot stage microscopy,and powder X-ray diffraction,and the experimental results revealed that the two compounds could form discontinuous solid solutions where PHE and CAR alternately acted as the host and guest with limited *** was demonstrated using molecular simulations based on lattice energy calculations using the Materials Studio 8.0 *** crystal morphology and solubility of the solid solution changed significantly as the molar fraction of the guest molecules changed.

关键词： Solid solution Thermal proprieties Structure Morphology

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Cystine-assisted accumulation of gold nanoparticles on ZnO to construct a sensitive surface-enhanced Raman spectroscopy substrate

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Frontiers of Chemical Science and Engineering 2023年第1期17卷 15-23页

作者： Qi Qu Chuan Zeng Jing Huang Mengfan Wang Wei Qi Zhimin He School of Chemical Engineering and Technology State Key Laboratory of Chemical EngineeringTianjin UniversityTianjin 300072China School of Life Sciences Tianjin UniversityTianjin 300072China Co-Innovation centre of Chemistry and Chemical Engineering of tianjin Tianjin 300072China tianjin Key Laboratory of Membrane Science and Desalination Technology Tianjin 300350China Technical centre of Gongbei Customs District of China Zhuhai 519000China

Recently,various semiconductor/metal composites have been developed to fabricate surfaceenhanced Raman spectroscopy ***,low metal loading on semiconductors is still a *** this study,cystine was introduced to increase the accumulation of gold nanoparticles on zinc oxide,owing to the biomineralization_property of_*** analysis revealed that the obtained ZnO/Au/cystine composite not only had a higher metal loading but also formed a porous structure,which is beneficial for Raman *** with ZnO/Au,the ZnO/Au/cystine substrate displayed a 40-fold enhancement in the Raman signal and a lower limit of detection(10^(-11) mol·L^(-1))in the detection of rhodamine ***,the substrate has favorable homogeneity and ***,ZnO/Au/cystine displayed excellent performance toward crystal violet and methylene blue in a test based on river water *** study provided a promising method to fabricate sensitive semiconductor/noblemetal-based surface-enhanced Ramans spectroscopy substrates for Raman detection.

关键词： biomineralization cystine semiconductor/metal composite SERS detection Raman detection

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Scattering of seismic waves by three-dimensional large-scale hill topography simulated by a fast parallel IBEM

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Earthquake Engineering and Engineering Vibration 2020年第4期19卷 855-873页

作者： Liu Zhongxian Shang Ce Huang Lei Liang Jianwen Li Jie tianjin Key Laboratory of civil structure protection and reinforcing Tianjin Chengjian UniversityTianjin 300384China PC Research and Development centre Tianjin Architecture Appraisal&Design InstituteTianjin 300072China Department of Civil Engineering Tianjin UniversityTianjin 300072China

To solve seismic wave scattering by a large-scale three-dimensional(3-D) hill topography, a fast parallel indirect boundary element method(IBEM) is developed by proposing a new construction method for the wave field, modifying the generalized minimum residual(GMRES) algorithm and constructing an Open MP plus MPI parallel model. The validations of accuracy and efficiency show that this method can solve 3-D seismic response of a large-scale hill topography for broadband waves, and overcome the weakness of large storage and low efficiency of the traditional IBEM. Based on this new algorithm architecture, taking the broadband scattering of plane SV waves by a large-scale Gaussian-shaped hill of thousands-meters height as an example, the influence of several important parameters is investigated, including the incident frequency, the incident angle and the height-width and length-width ratio of the hill. The numerical results illustrate that the amplification effect on the ground motion by a near-hemispherical hill is more significant than the narrow hill. For low-frequency waves, the scattering effect of the higher hill is more pronounced, and there is only a single peak near the top of the hill. However, for high-frequency waves, rapid spatial variation of displacement amplitude appears on the hill surface.

关键词： scattering of seismic waves 3-D hill topography indirect boundary element method(IBEM) parallel calculation

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Multi-ring Aggregate Formation in Styrene Polymers

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Science China Chemistry 1994年第10期37卷 1153-1160页

作者：何炳林王国昌叶彦春栗凤珍高传喜 Institute of Polymer Chemistry Nankai UniversityTianjin 300071PRC Experimental centre Tianjin Normal UniversityTianjin 300074PRC

The photophysical properties of some cross-linked/linear styrene polymers are *** been further demonstrated that the phenyl multi-ring aggregate forms not only in excited state instyrene/divinylbenzene cross-linked polymers hut also in ground ***,the similar multi-ring ag-gregate has also been observed in linear polystyrene with structural *** results are ex-plained in terms of 'superdense structure' formed by chemical cross-linking and physical gelation,whichcharacterize the morphological heterogeneity in styrene polymers.

关键词： styrene polymer multi-ring aggregate fluorescence

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Laboratory diagnosis of infectious endophthalmitis

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International Journal of Ophthalmology(English edition) 2011年第1期4卷 100-102页

作者： Wen-Jiang Ma Hong Zhang and Shao-Zhen Zhao Eye centre Tianjin Medical University Tianjin 300070 China

AIM:To analyze the lab diagnosis and etiology of infectious ***:The medical and microbial records of 36 patients diagnosed with infectious endophthalmitis and 8 patients diagnosed with intraocular lens(IOL)-related inflammation between Nov.1999 and Dec.2009 were retrospectively reviewed for lab diagnosis and ***:The inflammatory cell counts in all aqueous humor specimens from infectious endophthalmitis patients were more than in all aqueous humor specimens from patients with IOL-related *** of the 36 aqueous humor samples(44.4%) and 11 of the 24 vitreous humor samples(45.8%) from infectious endophthalmitis patients showed positive results in smears;while 17 aqueous humor samples(47.2%) and 15 vitreous humor samples(62.5%) from infectious endophthalmitis patients showed positive results in ***:The inflammatory cell count may be an important index for infectious endophthalmitis;while,smears can show etiological information earlier.

关键词： laboratory diagnosis infectious endophthalmitis IOL-related inflammation

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Studies on the heterogeneity of St/DVB copolymers by phenyl aggregate fluorescence

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Science China Chemistry 1995年第9期38卷 1046-1054页

作者：王国昌叶彦春高焕何炳林栗凤珍高传喜 Institute of Polymer Chemistry Nankai UniversityTianjin 300071China Experimental centre Tianjin Normal UniversityTianjin 300068China

A new method for characterizing St/DVB copolymer heterogeneity by phenyl aggregatefluorescence has been developed and used to study the effects of crosslinking degree,crosslinker and diluent onthe heterogeneity of the copolyruer *** results show that St/m-DVB copolymer gel is more homogeneousin structure than St/p-DVB copolymer gel,whereas increasing crosslinking degree and the proportion of goodsolvent in diluent lead to an increase of gel *** results provide structural evidence which mayserve as a bridge between St/DVB crosslinking reaction and the copolymer properties.

关键词： phenyl aggregate fluorescence crosslinked copolymers gel heterogeneity.

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A MODEL OF TWO-PHASE EQUILIBRIUM FOR FORMATION OF KINK-BANDS IN ROCKS

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Acta Mechanica Solida Sinica 2011年第2期24卷 166-175页

作者： Dexuan Qi Yitong Zhang Jiaxing Ning Jiafu Xu tianjin Research centre of Basic Medical Science Tianjin Medical University Tianjin 300070 China School of Mechanical Engineering Tianjin University Tianjin 300072 China tianjin Metro Group Corporation Limited Tianjin 300051 China

Kink-bands in rocks have been widely observed in nature and imitated in the laboratory, and the mechanism of their formation has attracted much attention from various researchers for many years. In this paper, a two-phase equilibrium model is presented in which the kink-bands are considered as a high-strain phase and the other regions outside kink-bands as a low-strain phase and the discontinuity of the deformation gradient and stresses is permitted across the interface between those two phases. Based on the present model, we conduct the analysis for the rocks under plane strain compression by finding the minimum value of the compressive loading at which the governing equations have real, physically acceptable solutions. It is revealed that for the rocks with strain-softening behaviour, two-phase equilibrium solutions exist, and the critical value of the compressive loading, the inclination angle of the kink-band, and the stresses and strains inside and outside kink-bands can all be determined by the solution, which are in good agreement with experimental measurements and observations.

关键词： kink-band rocks strain localization two-phase equilibrium

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