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Regulating crystallization and retarding oxidation in Sn-Pb perovskite via 1D cation engineering for high performance all-perovskite tandem solar cells

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Journal of Energy Chemistry 2025年第1期100卷 646-652页

作者： Ranran Liu Xin Zheng Zaiwei Wang Miaomiao zeng Chunxiang Lan Shaomin Yang Shangzhi Li Awen Wang min Li Jing Guo Xuefei Weng Yaoguang Rong Xiong Li Michael Gr?tzel Center for Mesoscopic Solar Cells Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced Technology Chinese Academy of Sciences School of Physics and Optoelectronic Engineering Hainan University Suzhou Institute of Nano-Tech and Nano-Bionics (siNANO) Chinese Academy of Sciences School of Chemistry Chemical Engineering and Life Sciences State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

All-perovskite tandem solar cells have the potential to surpass the theoretical efficiency limit of single junction solar cells by reducing thermalization ***,the challenges encompass the oxidation of Sn2+to Sn4+and uncontrolled crystallization kinetics in Sn-Pb perovskites,leading to nonradiative recombination and compositional heterogeneity to decrease photovoltaic efficiency and operational ***,we introduced an ionic liquid additive,1-ethyl-3-methylimidazolium iodide （EMIMI） into Sn-Pb perovskite precursor to form low-dimensional Sn-rich/pure-Sn perovskites at grain boundaries,which mitigates oxidation of Sn2+to Sn4+and regulates the film-forming dynamics of Sn/Pb-based perovskite *** optimized single-junction Sn-Pb perovskite devices incorporating EMIMI achieved a high efficiency of 22.87%.Furthermore,combined with wide-bandgap perovskite sub-cells in tandem device,we demonstrate 2-terminal all-perovskite tandem solar cells with a power conversion efficiency of 28.34%,achieving improved operational stability.

关键词： All-perovskite tandem solar cells Sn-Pb perovskite 1D Regulated crystallization Antioxidation

Engineering high-performance chemiluminescent probes via enzymatic pocket targeting: high-throughput screening for ultralong afterglow imaging of orthotopic hepatocellular carcinoma

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Science China Chemistry 2025年

作者： Shuai Huang Shuaige Bai Ting Luo Bin Feng min Liu Fan Zheng Shuang Huang Yanpeng Fang Dan Ding Wenbin zeng Xiangya School of Pharmaceutical Sciences Central South University College of Life Sciences Nankai University

Hepatocellular carcinoma （HCC） is a highly aggressive liver malignancy and the main form of liver cancer. Early diagnosis and treatment of HCC can effectively reduce mortality. Carboxylesterase （CE）-specific detection and imaging can be used for early diagnosis and image-guided surgical of HCC. However, traditional optical probes suffer from poor selectivity and low imaging signal-to-noise ratio. Here, we have constructed a series of chemiluminescent probes for carboxylesterase detection based on the strategy of enzymatic pocket-oriented steric tailoring techniques. The probes with different unique and excellent properties have been obtained through the structure-based steric hindrance adjustment on the recognition site. Here, CE-2 has been successfully used for high-throughput screening of rapid carboxylesterase inhibitors due to its extremely low detection limit (2.5×10-4U mL-1) and fast recognition ability. CE-3 has been successfully used for image-guided surgery of orthotopic hepatocellular carcinoma due to its ultra-long chemiluminescence imaging （over 12 h） of hepatocellular carcinoma. This study may promote advances in the rapid detection and screening of inhibitory drugs for CE and the field of surgical navigation in HCC.

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λ-Central BMO Estimates for Multilinear Commutators of Fractional Integrals

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Acta Mathematica sinica,English Series 2010年第11期26卷 2093-2108页

作者： zeng Yan si School of Mathematical Science Beijing Normal University Beijing 100875 P. R. China

The author establishes λ-central BMO estimates for commutators of multilinear fractional integral operators on central Morrey spaces.

关键词： λ-central BMO space central Morrey space multilinear fractional operators

simultaneous removal of NO and SO_2 from dry gas stream using non-thermal plasma

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Journal of Environmental Sciences 2007年第11期19卷 1393-1397页

作者： YU Qi YANG Hong-min zeng Ke-si ZHANG Zhen-wei YU Gang College of Chemical Engineering Wuhan University of Science and Engineering Wuhan 430073 China Department of Power Engineering Nanjing Normal University Nanjing 210042 China Department of Man-Machine and Environment Engineering College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

In order to investigate the feasibility of sequential removal NO and SO2 using non-thermal plasma and adsorbent simultaneously, the removal of NO and SO2 from dry gas stream （NO/SO2/N2/O2） with very little O2 using non-thermal plasma was investigated using a coaxial dielectric barrier discharge. Comparative experiments were carried out in the dry gas stream with and without Ar respectively at O2 concentration of 0.1%. The results showed that NO could be removed remarkably and it would be enhanced in the presence of Ar in the dry gas stream. It seems that SO2 could not be removed unless there is Ar in the dry gas stream. The mechanism of removal of NO and SO2 in the dry gas stream was discussed.

关键词： NO SO2 non-thermal plasma dry gas stream simukaneous removal

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空气、煤气双预热技术在气烧石灰窑的应用

山东冶金 2003年第4期25卷 67-69页

作者：张玉华曲思民刘富增济南鲍德炉料有限公司山东济南250101

根据气烧石灰窑的工艺特点,研制出了适用的空气换热器和煤气换热器,利用高温烟气对入炉空气和煤气进行预热、同时对高温烟气进行冷却的气—气换热技术。实际测试表明,烟气温度由换热前的412℃降为换热后的181℃,烟气余热51.43%被空气和... 详细信息

根据气烧石灰窑的工艺特点,研制出了适用的空气换热器和煤气换热器,利用高温烟气对入炉空气和煤气进行预热、同时对高温烟气进行冷却的气—气换热技术。实际测试表明,烟气温度由换热前的412℃降为换热后的181℃,烟气余热51.43%被空气和煤气吸收,有效提高了气烧石灰窑的能源利用率,每座石灰窑每年节省的煤气价值达35.73万元。

关键词：气烧石灰窑烟气余热双预热技术换热器能源利用率

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沥青路面裂缝高聚物注浆效果试验评价研究

山西建筑 2025年第2期51卷 129-132页

作者：祁敏曾辉江苏路通装配科技有限公司江苏宜兴214200 江苏众智交通创新产业研究院有限公司江苏南京211899

非开挖式注浆技术采用高聚物双组分材料注浆,能有效填充沥青路面裂缝处半刚性基层和底基层层间脱空,排出结构层水分,密封裂缝,达到补强路面结构层效果。为了评价注浆技术应用效果,通过施工过程注浆孔检测、注浆前后探地雷达图谱测试、... 详细信息

非开挖式注浆技术采用高聚物双组分材料注浆,能有效填充沥青路面裂缝处半刚性基层和底基层层间脱空,排出结构层水分,密封裂缝,达到补强路面结构层效果。为了评价注浆技术应用效果,通过施工过程注浆孔检测、注浆前后探地雷达图谱测试、弯沉测试以及取芯等方式来评判,结果显示注浆后裂缝处弯沉能降低20%,两侧弯沉差明显减小,三维探地雷达检测显示裂缝注浆后灰度图内部未出现异常信号,无振幅加强现象,证明裂缝处浆液被填充。

关键词：非开挖注浆高聚物半刚性基层三维探地雷达横向裂缝

The hydrodynamic interactions of an array of truncated circular cylinders as each cylinder oscillates independently with different prescribed modes

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Journal of Hydrodynamics 2013年第1期25卷 27-38页

作者： zeng Xiao-hui TANG si-yi Institute of Mechanics Chinese Academy of Sciences

An analytical method based on the eigenfunction expansion and the Graf＇s addition theorem for Bessel functions is developed to study the hydrodynamic interactions of an array of truncated circular cylinders with each cylinder oscillating independently in different prescribed modes. The hydrodynamic radiation and diffraction of linear waves by such an array of cylinders are investigated and the analytical solutions of the velocity potentials are obtained. After comparisons for degenerated cases and program verifications, several cases for an array of truncated cylinders with each cylinder oscillating independently in surge, sway, heave, roll, and pitch modes with different prescribed amplitudes, are studied and the hydrodynamic forces and moments acting on the cylinders are obtained.

关键词： array of truncated circular cylinders independent oscillation radiation hydrodynamic interaction

Weighted Estimates for Iterated Commutators of Multilinear Fractional Operators

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Acta Mathematica sinica,English Series 2012年第9期28卷 1769-1778页

作者： zeng Yan si Shan Zhen LU School of Mathematics and Information Science He'nan Polytechnic University School of Mathematical Science Beijing Normal University

The author establishes weighted strong type estimates for iterated commutators of multi- linear fractional operators.

关键词： Multilinear fractional operators commutators weighted norm inequalities

Optimization of an Artificial Intelligence Database and Camera Installation for Recognition of Risky Passenger Behavior in Railway Vehicles

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Computers, Materials & Continua 2025年第1期82卷 1277-1293页

作者： min-kyeong Kim Yeong Geol Lee Won-Hee Park Su-hwan Yun Tae-Soon Kwon Duckhee Lee Railroad Test&Certification Division Korea Railroad Research Institute(KRRI)Cheoldo BangmulgwanroUiwang-si16105Republic of Korea Railroad Safety Division Korea Railroad Research Institute(KRRI)Cheoldo BangmulgwanroUiwang-si16105Republic of Korea

Urban railways are vital means of public transportation in *** than 30%of metropolitan residents use the railways,and this proportion is expected to *** enhance safety,the government has mandated the installation of closed-circuit televisions in all carriages by ***,cameras still monitored *** address this limitation,we developed a dataset of risk factors and a smart detection system that enables an immediate response to any abnormal behavior and intensive monitoring *** created an innovative learning dataset that takes into account seven unique risk factors specific to Korean railway *** data collection was conducted across the Shinbundang Line of the Incheon Transportation Corporation,and the Ui-Shinseol *** observed several behavioral characteristics and assigned unique annotations to *** also considered carriage *** performance was evaluated by camera placement and *** the camera installation plan was *** dataset will find immediate applications in domestic railway *** artificial intelligence algorithms will be verified shortly.

关键词： AI railway vehicle risk factor smart detection AI training data