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Alkyl chain modulation of asymmetric hexacyclic fused acceptor synergistically with wide bandgap third component for high efficiency ternary organic solar cells

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1713-1719页

作者： Shufang Li Huilan Guan Can zhu Chaoyuan sun Qingya Wei jun Yuan Yingping Zou College of Chemistry and Chemical engineering Central South UniversityChangsha 410083China Beijing National Laboratory for Molecular sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Institute of Carbon Neutrality and New Energy School of Electronics and InformationHangzhou Dianzi UniversityHangzhou 310018China

Herein,two asymmetric hexacyclic fused small molecule acceptors(SMAs),namely BP4F-HU and BP4F-UU,were *** elongated outside chains in the BP4F-UU molecule played a crucial role in optimizing the morphology of blend film,thereby improving charge mobility and reducing energy loss within the corresponding ***,the PM6:BP4F-UU device exhibited a higher open-circuit voltage(V_(oc))of 0.878 V compared to the PM6:BP4F-HU device with a V_(oc)of 0.863 ***,a new wide bandgap SMA named BTP-TA was designed and synthesized as the third component to the PM6:BP4F-UU host binary devices,which showed an ideal complementary absorption spectrum in PM6:BP4F-UU *** addition,BTP-TA can achieve efficient intermolecular energy transfer to BP4F-UU by fluorescence resonance energy transfer(FRET)pathway,due to the good overlap between the photoluminescence(PL)spectrum of BTP-TA and the absorption region of ***,ternary devices with 15wt%BTP-TA exhibits broader photon utilization,optimal blend morphology,and reduced charge recombination compared to the corresponding binary ***,PM6:BP4F-UU:BTP-TA ternary device achieved an optimal power conversion efficiency(PCE)of 17.83%with simultaneously increased V_(oc)of 0.905 V,short-circuit current density(J_(sc))of 26.14 mA/cm^(2),and fill factor(FF)of 75.38%.

关键词： asymmetric hexacyclic acceptor outside chain wide bandgap acceptor ternary organic solar cells

Resilient Smart Power Grid Synchronization Estimation Method for System Resilience with Partial Missing Measurements

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1307-1319页

作者： Yi Wang Yanxin liu Mingdong Wang Venkata Dinavahi jun Liang Yonghui sun School of Electrical and information engineering Zhengzhou UniversityZhengzhou 450001China Henan engineering Research Center of Power electronics and Energy Systems Zhengzhou 450001China department of Electrical and Computer engineering University of AlbertaEdmontonAB T6G 2V4Canada School of engineering Cardiff UniversityCardiff CF243AAUK College of Energy and Electrical engineering Hohai UniversityNanjing 210098China IEEE

With the increasing demand for power system stability and resilience,effective real-time tracking plays a crucial role in smart grid ***,most studies have focused on measurement noise,while they seldom think about the problem of measurement data loss in smart power grid *** solve this problem,a resilient fault-tolerant extended Kalman filter(RFTEKF)is proposed to track voltage amplitude,voltage phase angle and frequency ***,a threephase unbalanced network’s positive sequence fast estimation model is ***,the loss phenomenon of measurements occurs randomly,and the randomness of data loss’s randomness is defined by discrete interval distribution[0,1].Subsequently,a resilient fault-tolerant extended Kalman filter based on the real-time estimation framework is designed using the timestamp technique to acquire partial data loss ***,extensive simulation results manifest the proposed RFTEKF can synchronize the smart grid more effectively than the traditional extended Kalman filter(EKF).

关键词： Dynamic state estimation Kalman filter partial missing measurements power systems smart grid synchronized measurements

Electrostatic interaction-mediated 1:1 complexes for high-contrast mitochondrial-targeted phosphorescence bioimaging

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science china Chemistry 2024年第10期67卷 3406-3413页

作者： Jianshuo Cheng Hao sun Lulu Zhou Glib VBaryshnikov Mouwei liu Shen Shen Hans Ågren Liangliang zhu State Key Laboratory of Molecular engineering of Polymers Department of Macromolecular ScienceFudan UniversityShanghai 200438China Laboratory of Organic electronics Department of Science and TechnologyLinköping UniversityNorrköping 60174Sweden department of Physics and Astronomy Uppsala UniversityUppsala SE-75120Sweden

Organelle-targeted imaging can provide information on cellular functions and intracellular interactions,being significant for disease *** use of room-temperature phosphorescence(RTP)in organelle-targeted imaging can fully utilize its unique characteristics of long wavelength and deep ***,this technology has long been plagued by insufficient probe targeting and limited luminous *** this work,we prepared a series of complexes composed of multicationic persulfurated arenes and biomacromolecules via electrostatic interactions in 1:1 stoichiometry for high-contrast mitochondrial-targeted RTP *** an electrostatic interaction design effectively prevented the self-aggregation of the probes,which is not conducive to mitochondrial ***,it suppressed the non-radiative decay to the maximum extent,enabling the probes to exhibit strong RTP signals both in aqueous solution and at the cellular ***,the biomacromolecules can serve as carriers for an electrostatic interaction transfer of the persulfurated arenes to *** leads to high mitochondrial targeting Pearson's correlation coefficients of the probes and high-contrast RTP imaging effects,as well as the independence of the co-incubated probe *** results provide new insights for the development of targeted imaging technologies.

关键词： room-temperature phosphorescence mitochondrial targeting bioimaging complex electrostatic interaction

Synergistically enhanced dielectric, insulating and thermally conductive performances of sandwich PMMA based dielectric films

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Progress in Natural science:Materials International 2024年第3期34卷 591-597页

作者： Dongmei Zhang Yufan Li Yuchao Li Zhonggui sun Hanxue zhu Lujia Yang Yanhu Zhan Yankai Li Shi Wang jun-Wei Zha School of Mathematical sciences Liaocheng University School of Materials science and engineering Liaocheng University State Key Laboratory of Organic electronics and information Displays & Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications School of Chemistry and Biological engineering University of Science and Technology Beijing

A tri-layered(B-G-B) dielectric films were simply prepared by alternatively spin-coating boron nitride/polymethylmethacrylate(BN/PMMA, B) and graphene nanosheets(GNS/PMMA, G) compound solutions. The structure, morphology, thermal conductivity, and particularly the dielectric and relaxation behaviors were systematically studied. Results showed that a good exfoliation and dispersion of BN and GNS can be simply achieved through intensive mechanical compounding with PMMA in the internal mixer. The dielectric constant and breakdown strength of the obtained 1-3-1(B-G-B) sandwich composite film reached 4.3(@1 kHz) and 458.6kV/mm, being 119 % and 113 % higher than that of pure PMMA, respectively. Furthermore, the overall thermal conductivity of sandwich 1-3-1 composite increased by 112 % due to the addition of thermally conductive BN and GNS. The sandwich design strategy provided an effective way of achieving good permittivity, high insulation, and improved thermal conductivity simultaneously, showing potential applications in the miniaturization and integration of electronic devices.

关键词： Breakdown strength Composites Dielectric constant Sandwich structure Thermal conductivity

Strong nonlinear optical processes with extraordinary polarization anisotropy in inversionsymmetry broken two-dimensional PdPSe

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Light(science & Applications) 2024年第8期13卷 1524-1533页

作者： Song zhu Ruihuan Duan Xiaodong Xu Fangyuan sun Wenduo Chen Fakun Wang Siyuan Li Ming Ye Xin Zhou Jinluo Cheng Yao Wu Houkun Liang junichiro Kono Xingji Li Zheng liu Qi Jie Wang School of Electrical and Electronic engineering Nanyang Technological University639798 SingaporeSingapore School of Material science and engineering Nanyang Technological University639798 SingaporeSingapore CINTRA CNRS/NTU/THALES UMI 3288Research Techno PlazaNanyang Technological University637371 SingaporeSingapore School of Materials science and engineering Harbin Institute of Technology150001 HarbinChina department of Chemistry National University of Singapore117543 SingaporeSingapore GPL Photonics Lab State Key Laboratory of Applied OpticsChangchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of Sciences130033 ChangchunChina School of electronics and information engineering Sichuan University610064 ChengduSichuanChina School of Physical and Mathematical sciences Nanyang Technological University637371 SingaporeSingapore departments of Electrical and Computer engineering Physics and Astronomyand Materials Science and NanoEngineeringRice UniversityHoustonTXUSA

Nonlinear optical activities,especially second harmonic generation(SHG),are key phenomena in inversion-symmetrybroken two-dimensional(2D)transition metal dichalcogenides(TMDCs).On the other hand,anisotropic nonlinear optical processes are important for unique applications in nano-nonlinear photonic devices with polarization functions,having become one of focused research topics in the field of nonlinear ***,the strong nonlinearity and strong optical anisotropy do not exist simultaneously in common 2D ***,we demonstrate strong secondorder and third-order susceptibilities of 64 pm/V and 6.2×10^(-19)m^(2)/V^(2),respectively,in the even-layer PdPSe,which has not been discovered in other common TMDCs(e.g.,MoS2).Strikingly,it also simultaneously exhibited strong SHG anisotropy with an anisotropic ratio of~45,which is the largest reported among all 2D materials to date,to the best of our *** addition,the SHG anisotropy ratio can be harnessed from 0.12 to 45(375 times)by varying the excitation wavelength due to the dispersion ofχ^(2)*** an illustrative example,we further demonstrate polarized SHG imaging for potential applications in crystal orientation identification and polarization-dependent spatial *** findings in 2D PdPSe are promising for nonlinear nanophotonic and optoelectronic applications.

关键词： materials. anisotropy nonlinear

用于大气污染扩散模拟的虚拟地理环境构建研究

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系统仿真学报 2008年第S1期20卷 176-179,186页

作者：朱军林珲林文实徐丙立西南交通大学土木工程学院测量工程系成都610031 香港中文大学太空与地球信息科学研究所中山大学环境科学与工程学院广州510275

重点开展基于虚拟地理环境的空气污染扩散模拟与交互操作研究,为城市空气污染的管理和时空动态模拟提供一个良好的可视化分析环境。以珠江三角洲空气污染为案例,建立虚拟地理环境原型系统,开展空气污染动态扩散模拟,进行实时交互查询与... 详细信息

重点开展基于虚拟地理环境的空气污染扩散模拟与交互操作研究,为城市空气污染的管理和时空动态模拟提供一个良好的可视化分析环境。以珠江三角洲空气污染为案例,建立虚拟地理环境原型系统,开展空气污染动态扩散模拟,进行实时交互查询与分析,实验结果证明,本文的方案能够逼真地模拟大气污染扩散过程,能较好地揭示城市群间空气污染的相互影响规律。

关键词：虚拟地理环境城市群空气污染动态模拟交互查询

Large circuit models: opportunities and challenges

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science china(information sciences) 2024年第10期67卷 25-66页

作者： Lei CHEN Yiqi CHEN zhufei CHU Wenji FANG Tsung-Yi HO Ru HUANG Yu HUANG Sadaf KHAN Min LI Xingquan LI Yu LI Yun LIANG Jinwei liu Yi liu Yibo LIN Guojie LUO Hongyang PAN Zhengyuan SHI Guangyu sun Dimitrios TSARAS Runsheng WANG Ziyi WANG Xinming WEI Zhiyao XIE Qiang XU Chenhao XUE junchi YAN jun YANG Bei YU Mingxuan YUAN Evangeline F.Y.YOUNG Xuan ZENG Haoyi ZHANG Zuodong ZHANG Yuxiang ZHAO Hui-Ling ZHEN Ziyang ZHENG Binwu zhu Keren zhu sunan ZOU Huawei Noah’s Ark Lab School of Integrated Circuits Peking University Faculty of Electrical engineering and Computer science Ningbo University department of Electronic and Computer engineering Hong Kong University of Science and Technology department of Computer science and engineering The Chinese University of Hong Kong School of Integrated Circuits Southeast University Huawei HiSilicon Peng Cheng Laboratory School of Computer science Peking University School of Microelectronics State Key Laboratory of Integrated Chips and System Fudan University School of Artificial Intelligence Shanghai Jiao Tong University

Within the electronic design automation(EDA) domain, artificial intelligence(AI)-driven solutions have emerged as formidable tools, yet they typically augment rather than redefine existing methodologies. These solutions often repurpose deep learning models from other domains, such as vision, text, and graph analytics, applying them to circuit design without tailoring to the unique complexities of electronic circuits. Such an “AI4EDA” approach falls short of achieving a holistic design synthesis and understanding,overlooking the intricate interplay of electrical, logical, and physical facets of circuit data. This study argues for a paradigm shift from AI4EDA towards AI-rooted EDA from the ground up, integrating AI at the core of the design process. Pivotal to this vision is the development of a multimodal circuit representation learning technique, poised to provide a comprehensive understanding by harmonizing and extracting insights from varied data sources, such as functional specifications, register-transfer level(RTL) designs, circuit netlists,and physical layouts. We champion the creation of large circuit models(LCMs) that are inherently multimodal, crafted to decode and express the rich semantics and structures of circuit data, thus fostering more resilient, efficient, and inventive design methodologies. Embracing this AI-rooted philosophy, we foresee a trajectory that transcends the current innovation plateau in EDA, igniting a profound “shift-left” in electronic design methodology. The envisioned advancements herald not just an evolution of existing EDA tools but a revolution, giving rise to novel instruments of design-tools that promise to radically enhance design productivity and inaugurate a new epoch where the optimization of circuit performance, power, and area(PPA) is achieved not incrementally, but through leaps that redefine the benchmarks of electronic systems' capabilities.

关键词： AI-rooted EDA large circuit models (LCMs) multimodal circuit representation learning circuit optimization

Self-tuning Weighted Measurement Fusion Kalman Filter with Cooperating Identification for Multisensor System with Correlated Noises

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Self-tuning Weighted Measurement Fusion Kalman Filter with C...

准直蓝、绿激光光束的水下目标反射功率和水质参数研究

2011 Chinese Control and Decision Conference（CCDC）

作者： Hao Gang1,Li Yun2,sun Lai-jun1 (1.Heilongjiang university,Electronic engineering Institute,Heilongjiang,Harbin,150080,china 2.Harbin university of Commerce,School of Computer and information engineering,Heilongjiang,Harbin,150001,china)

For the multisensor system with correlated noises and unknown noise statistics,the measurement function can be dealt with in a unified way to form a new tracking system by least square *** result of the measurements can make some groups of steady random sequence,and the variances Rii and covariance Rij of these measurements can be yielded by the matrix equations of the correlation function,and then the estimates of Qw T can be *** the self-tuning weighted measurement fusion Kalman filter is obtained.A simulation example for a tracking system with 3 sensors shows its fast convergence and exactness.

关键词： Noise statistics estimation Self-tuning Kalman filter Weighted measurement fusion

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中国激光 2001年第8期28卷 749-752页

作者：刘应状朱光喜朱耀庭昌彦君华中科技大学电子与信息工程系武汉430074

根据准直激光光束在海水中的传播原理 ,研究了准直蓝、绿激光光束的水下目标反射功率以及海水水质参数与后向散射功率之间的关系 ;证明用准直蓝。

关键词：准直激光光束目标反射功率水质参数蓝激光绿激光