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Magnetron sputtered nickel oxide with suppressed interfacial defect states for efficient inverted perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 348-355页

作者： Guoqiang Ma Qin Tan Zhaoning Li Jingwei Xiu Jiafeng Wang Tianle Cheng Dong He Qiang Sun Xuhang Ma Francesco Lamberti Zhubing He Department of Materials Science and Engineering Institute of Innovative Materials (I2M) Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG)Southern University of Science and Technology (SUSTech) Core Research Facilities Southern University of Science and Technology Department of Chemical Sciences Department of Industrial Engineering University of Padova

Widely used spin-coated nickle oxide （NiOx） based perovskite solar cells often suffer from severe interfacial reactions between the NiOxand adjacent perovskite layers due to surface defect states,which inherently impair device performance in a long-term view,even with surface molecule *** this study,we developed high-quality magnetron-sputtered NiOxthin films through detailed process optimization,and compared systematically sputtered and spin-coated NiOxthin film surfaces from materials to *** sputtered NiOxfilms exhibit improved crystallinity,smoother surfaces,and significantly reduced Ni3+or Ni vacancies compared to their spin-coated ***,the interface between the perovskite and sputtered NiOxfilm shows a substantially reduced density of defect *** solar cells （PSCs） fabricated with our optimally sputtered NiOxfilms achieved a high power conversion efficiency （PCE） of up to 19.93%and demonstrated enhanced stability,maintaining 86.2% efficiency during 500 h of maximum power point tracking under one standard sun ***,with the surface modification using (4-(2,7-dibromo-9,9-dimethylacridin-10（9H）-yl)butyl)p hosphonic acid （DMAcPA）,the device PCE was further promoted to 23.07%,which is the highest value reported for sputtered NiOxbased PSCs so far.

关键词： Nickle oxide Magnetron sputter Defect Stability Perovskite solar cell

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Computing Degree of Maps Between Manifolds

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Acta Mathematica Sinica,English Series 2005年第6期21卷 1277-1284页

作者： Yan Hong DING Jian Zhong PAN Department of Mathematics Hebeg Normal University Shijiazhuang 050016 P. R. China Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 P. R. China

We determine the degrees of maps between two given closed （n-1）-connected 2n-mamifolds when n ≡ 1 （mod 8）.

关键词： 2n-manifolds degree

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Local Existence of the Shock Front Solution to the Axi-symmetrical Piston Problem in Compressible Flow

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Acta Mathematica Sinica,English Series 2004年第4期20卷 589-604页

作者： ZeJunWANG InstituteofMathematics FudanUniversityShanghai200433P.R.China

In this paper,we study a kind of 2-dimensional axi-symmetrical piston problem in com- pressible *** corresponding mathematical model is the well-known Euler *** the Newton iteration procedure and energy estimate,we gi... 详细信息

关键词： Piston problem Euler system Shock front solution Newton iteration Energy estimate

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STUDY ON THE CENTRALIZATION STRATEGY OF THE BLOOD ALLOCATION AMONG DIFFERENT DEPARTMENTS WITHIN A HOSPITAL

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Journal of Systems Science and Systems Engineering 2018年第4期27卷 417-434页

作者： Jingnan Duan Qiang Su Yanhong Zhu Yuanshan Lu School of Economies and Management Tongii University Shanghai 200092 China Shanghai General Hospital Shanghai 200080 China

By far, the researches on how to distribute blood products among different departments in hospital have not been further studied, though the problem of blood shortage and wastage that caused by improper blood allocation is severe, which may endanger patient＇s lives and impose considerable costs on hospitals. In order to solve this problem, this paper mainly studies on how to distribute the blood items among different departments within a hospital and investigates the allocation approach with the novel management method by centralizing the inventory of several different departments. By integrating the blood inventory requirements of some departments, the hospital could reduce the rate of blood shortage and wastage effectively, release the pressure of the occupancy of resources and reduce the bullwhip effect of blood products. This paper illustrates the centralization principle in hospital and formulates the mixed integer programming model to work out the optimal allocation network scheme and the optimal inventory setting for every department. And the results of the numerical example demonstrate that this centralization method could considerably reduce blood shortage and wastage in hospital by about 72% and 90% respectively. Furthermore, it could decrease the total cost by about 108,540 RMB a month on blood supply chain management in the hospital and improve the effect of some certain surgeries by transfusing the fresh blood to patients.

关键词： Blood allocation inventory management centralization strategy bullwhip effect

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RECOVERY BASED FINITE ELEMENT METHOD FOR BIHARMONIC EQUATION IN 2D

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Journal of Computational Mathematics 2020年第1期38卷 84-102页

作者： Yunqing Huang Huayi Wei Wei Yang Nianyu Yi Key Laboratory of Intelligent Computing&Information Processing of Ministry of Education School of Mathematics and Computational ScienceXiangtan UniversityXiangtan 411105China Hunan Key Laboratory for Computation and Simulation in Science and Engineering School of Mathematics and Computational ScienceXiangtan UniversityXiangtan 411105China

We design and numerically validate a recovery based linear finite element method for solving the biharmonic *** main idea is to replace the gradient operator▽on linear finite element space by G(▽)in the weak formulation of the biharmonic equation,where G is the recovery operator which recovers the piecewise constant function into the linear finite element *** operator G,Laplace operator△is replaced by▽·G(▽).Furthermore,the boundary condition on normal derivative▽u-n is treated by the boundary penalty *** explicit matrix expression of the proposed method is also *** examples on the uniform and adaptive meshes are presented to illustrate the correctness and effectiveness of the proposed method.

关键词： Biharmonic equation Linear finite element Recovery Adaptive

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Potential dependence in electrocatalysis: a theoretical perspective

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Science China Chemistry 2025年第1期 21-25页

作者： Leyu Liu Zhaoming Xia Zeyu Wang Yinjuan Chen Hai Xiao Department of Chemistry Tsinghua University Fundamental Science Center of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou University

Electrocatalysis is a key technology for the new energy era and sustainable development, serving as the interface for interconversion of electrical and chemical energies, which spans a wide spectrum of applications in sustainable energy and environmental engineering. Electrocatalytic reactions including electrochemical CO2reduction reaction （eCO2RR）, hydrogen evolution reaction （HER）, and oxygen evolution/reduction reactions （OER/ORR）, hold essential promise for renewable energy technologies as well as complement the biogeochemical carbon and oxygen cycles.

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Desirable molecule discovery via generative latent space exploration

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Visual Informatics 2023年第4期7卷 13-21页

作者： Wanjie Zheng Jie Li Yang Zhang College of Intelligence and Computing Tianjin UniversityTianjinChina

Drug molecule design is a classic research *** experts traditionally design molecules relying on their *** drug design is time-consuming and may produce low-efficacy and offtarget *** the popularity of deep learning,drug experts are beginning to use generative models to design drug molecules.A well-trained generative model can learn the distribution of training samples and infinitely generate drug-like molecules similar to the training *** automatic process improves design ***,most existing methods focus on proposing and optimizing generative *** to discover ideal molecules from massive candidates is still an unresolved *** propose a visualization system to discover ideal drug molecules generated by generative *** this paper,we investigated the requirements and issues of drug design experts when using generative models,i.e.,generating molecular structures with specific constraints and finding other molecular structures similar to potential drug molecular *** formalized the first problem as an optimization problem and proposed using a genetic algorithm to solve *** the second problem,we proposed using a neighborhood sampling algorithm based on the continuity of the latent space to find *** integrated the proposed algorithms into a visualization tool,and a case study for discovering potential drug molecules to make KOR agonists and experiments demonstrated the utility of our approach.

关键词： Molecule generation Latent space exploration Constrained optimization

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More on Bounding Introspection in Modal Nonmonotonic Logics

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Acta Mathematica Sinica,English Series 2000年第4期16卷 555-564页

作者： Xishun Zhao Decheng Ding Department of Mathematics. Nanjing University. Nanjing 210093, P. R. China Department of Mathematics Nanjing University Nanjing 210093 P. R. China

By L. we denote the set of all propositional fornmlas. Let C be the set of all clauses. Define C_n=C(Lη:η∈C}.In Sec. 2 of this paper. we prove that for normal modal logics S, the notions of (S. C_)-expansions and S-expansions coincide. In Sec. 3. we prove that if I consists of default clauses then the notions of S-expansions for I and (S.C)-expansions for I coincide. To this end. we first show. in Sec *** the notion of S-expansions for I is the same as that of (S.L)-expansions for I.

关键词： Modal nonmonotonic logic Expansion Bounding Introspection Default clause

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Shape preserving topology optimization for structural radar cross section control

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Chinese Journal of Aeronautics 2022年第6期35卷 198-210页

作者： Fei CHEN Jihong ZHU Xinxin DU Ruitong ZHANG Weihong ZHANG State IJR Center of Aerospace Design and Additive Manufacturing Northwestern Polytechnical UniversityXi’an 710072China MIIT Lab of Metal Additive Manufacturing and Innovative Design Northwestern Polytechnical UniversityXi’an 710072China

The purpose of this paper is to present a shape preserving topology optimization method to prevent the adverse effects of the mechanical deformation on the Radar Cross Section(RCS).The optimization will suppress the variation of RCS on the perfect conductor surface by structural *** the one hand,the physical optics method is utilized to calculate the structural RCS,which is based on the surface displacement field obtained from the finite element analysis of the *** corresponding design sensitivities of topology optimization are derived analytically and solved by the adjoint *** the other hand,the RCS variation and mechanical performance are taken into account simultaneously by extending a standard compliance-based topology optimization *** optimization formulations are discussed in an illustrative example,where the influences of upper limits of the compliance and the RCS variation are *** more examples are further tested to show the ability and validity of the proposed optimization method.

关键词： Adjoint method Physical optics method Radar cross section Shape preserving design Topology optimization

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Distributed Parameter Neural Networks via Adaptive Wavelet

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Journal of Systems Engineering and Electronics 1993年第2期4卷 48-62页

作者： Zhuoer, Shi Licheng, Jiao Zheng, Bao Xidian Univ Xi'an China

The paper outlines a new neural net (DPNN) for describing brain's action based on one-dimensional cable theory. While the traditional neural network system only finding its character involving time changing (as HNN, BP etc.), the model-DPNNs (Distributed parameter neural networks) are not only the transmitted neurons of time variation, but also the functions of positions by the voltage u(x,t). With the neuroscientific relevance, some bioneural features like intermittent conduction and dendritic spike are fixed well by DPNNs which considered as complicated and adaptive devices contract to the functional elementary units. To find the semi-analytical representations of DPNNs, adaptive wavelets are utilized as new microlocalization tools. While maintaining all advantages of wavelet function, the adaptive wavelet offers a viable alternative learning procedure to the orthogonal least squares method (OLS), adaptive wavelet method develops a fairly general low-cost multiscale method for neural net optimization. In addition, a Lyapunov function method is also used to study the uniform asymptotic stability of DPNNs to support the new theory.

关键词： Brain Neurology Optimization

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