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Bifunctional bridging capping layer enables 24.5%efficiency of perovskite solar cells with polymer-based hole transport materials

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Science China Chemistry 2025年第1期68卷 350-359页

作者： Can zhu Yiyang Wang lei Meng Beibei Qiu Jing Li Shucheng qin Ke Hu Xin Jiang Wenbin Lai Minchao Liu Zhe Liu Chenxing Lu Jinyuan Zhang yongfang Li Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical Science University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information EngineeringZhejiang Normal UniversityJinhua 321004China Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China Laboratory of Advanced Optoelectronic Materials College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

Developing a bridge capping layer between perovskite and hole transport layer materials(HTMs)in the n-i-p perovskite solar cells(pero-SCs)is an effective approach to modify the morphology of HTMs and passivate the perovskite ***,we select the quinoxaline-based bifunctional passivation agent,quinoxalin-6-yl-methylamine hydrochloride(Qx MACl),as the bridging layer,and a D-A copolymer PBQ12 containing the same quinoxaline unit as an HTM for the n-i-p *** to theπ-πstacking among the common quinoxaline units in the bridge layer and HTM,Qx MACl induces theπ-πstacking of the PBQ12 film and improves the film morphology of HTMs with better ***,Qx MACl can effectively passivate the perovskite surface,and PBQ12 possesses appropriate energy levels and high hole *** pero-SCs based on FAPbI_(3)with PBQ12/Qx MACl treatment showed a higher power conversion efficiency(PCE)of 24.05%and outstanding stability,maintaining 95.4%and 92.1%of its initial PCE after 750 h of storage and after over 800 h of thermal annealing at 85℃,*** further enhance the PCE of the PBQ12/Qx MACl-based devices,we developed a non-metal ion dopant for the PBQ12 *** trace doping of PBQ12 HTM by the non-metal ion dopant,the PCE of the PBQ12/Qx MACl-based devices reached 25.24%(the calibrated PCE of 24.55%by the National Institute of Metrology,China).

关键词： D-A copolymer hole transport materials bifunctional bridge capping layer passivation perovskite solar cells

Interfacial amine-assisted electrodeposition of superhydrophilic/superaerophobic metal hydroxides for robust oxygen evolution catalysis

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Science China Chemistry 2025年

作者： qing Chen Keyu Wang Shiyi Li Yixing Wang Linfeng lei Minghui zhu Linzhou zhuang Zhi Xu State Key Laboratory of Chemical Engineering School of Chemical Engineering East China University of Science and Technology Suzhou Laboratory

The oxygen evolution reaction（OER） is crucial for the electrocatalytic water electrolysis into oxygen and hydrogen, but the fourelectron transfer process hinders the OER dynamics. To realize the highly efficient water splitting, the nonprecious metal-based electrodes that can optimize the adsorption energy of intermediates and generate H2with low overpotential and robust stability are essential. Herein, we report a surface modification strategy to grow the trimetallic FeCoNi hydroxide on the amine linkersgrafted carbon cloth（CC-NH2@FeCoNi） by electro-deposition. CC-NH2@FeCoNi possesses a superhydrophilic/superaerophobic surface, which could significantly enhance the mass transfer, and meanwhile promote the in situ generation of MOOH active species. Meanwhile, the superhydrophilic surface could facilitate the adsorption of abundant OH-ions, and repel the Cl-ions via electrostatic repulsive force during seawater oxidation. Consequently, compared with the CC@FeCoNi that grown on the pure CC（320 mV）, the CC-NH2@FeCoNi needs an obviously smaller overpotential of 270 mV to achieve a current density of 100 mA cm-2, and meanwhile it exhibits a superior durability for 100 h at a current density of 200 mA cm-2in both alkaline water and seawater. This strategy could be even applied universally in the preparation of other nonprecious metal hydroxides for efficient OER catalysis.

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Gentiopicroside Alleviates Atherosclerosis by Suppressing Reactive Oxygen Species-Dependent NLRP3 Inflammasome Activation in Vascular Endothelial Cells via SIRT1/Nrf2 Pathway

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Chinese Journal of Integrative Medicine 2025年第2期31卷 118-130页

作者： LI zhu-qing ZHANG Feng LI Qi WANG Li SUN Xiao-qiang LI Chao YIN Xue-mei LIU Chun-lei WANG Yan-xin DU Xiao-yu LU Cheng-zhi Department of Cardiology Tianjin First Central HospitalTianjin300192China The First Central Clinical School Tianjin Medical UniversityTianjin300070China Department of Cardiology The First College of Clinical Medical ScienceChina Three Gorges University&Yichang Central People’s HospitalYichangHubei Province443003China School of Medicine Nankai UniversityTianjin300071China

Objective:To evaluate the protective effects of gentiopicroside(GPS)against reactive oxygen species(ROS)-induced NOD-like receptor family,pyrin domain containing 3(NLRP3)inflammasome activation in endothelial cells,aiming to reduce ***:Eight-week-old male ApoE-deficient mice were randomly divided into 2 groups(n=10 per group):the vehicle group and the GPS treatment *** groups were fed a high-fat diet for 16 ***(40 mg/kg per day)was administered by oral gavage to the GPS group,while the vehicle group received an equivalent volume of the vehicle *** the end of the treatment,blood and aortic tissues were collected for assessments of atherosclerosis,lipid profiles,oxidative stress,and molecular expressions related to NLRP3 inflammasome activation,ROS production,and ***,in vitro experiments on human aortic endothelial cells treated with oxidized low-density lipoprotein(ox-LDL)were conducted to evaluate the effects of GPS on NLRP3 inflammasome activation,pyroptosis,apoptosis,and ROS production,specifically examining the role of the sirtuin 1(SIRT1)/nuclear factor erythroid 2-related factor 2(Nrf2)***1 and Nrf2 inhibitors were used to confirm the pathway's ***:GPS treatment significantly reduced atherosclerotic lesions in the en face aorta(P<0.01),as well as in the thoracic and abdominal aortic regions,and markedly decreased sinus lesions within the aortic root(P<0.05 or P<0.01).Additionally,GPS reduced oxidative stress markers and proinflammatory cytokines,including interleukin(IL)-1βand IL-18,in lesion areas(P<0.05,P<0.01).In vitro,GPS inhibited ox-LDL-induced NLRP3 activation,as evidenced by reduced NLRP3(P<0.01),apoptosis-associated speck-like protein containing a CARD,cleaved-caspase-1,and cleavedgasdermin D expressions(all P<0.01).GPS also decreased ROS production,apoptosis,and pyroptosis,with the beneficial effects being significantly reversed by SIRT1 or Nrf2 ***:GPS exe

关键词： endothelial dysfunction gentiopicroside NLRP3 inflammasome SIRT1 nuclear factor erythroid 2-related factor 2 Chinese medicine

Joint empirical likelihood confidence regions for a finite number of quantiles under strong mixing samples

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Applied Mathematics(A Journal of Chinese Universities) 2015年第1期30卷 44-54页

作者： lei qing-zhu qin yong-song Department of Mathematics Guangxi Normal University

In this paper, we obtain the joint empirical likelihood confidence regions for a finite number of quantiles under strong mixing samples. As an application of this result, the empirical likelihood confidence intervals ... 详细信息

关键词： strong mixing sample quantile confidence region blockwise empirical likelihood.

Modified likelihood ratio test for homogeneity in normal mixtures with two samples

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Applied Mathematics(A Journal of Chinese Universities) 2008年第1期23卷 113-119页

作者： qin yong-song lei qing-zhu School of Math. Sci. Guangxi Normal Univ. Guilin 541004 China.

This paper investigates the modified likelihood ratio test（LRT） for homogeneity in normal mixtures of two samples with mixing proportions unknown. It is proved that the limit distribution of the modified likelihood ... 详细信息

关键词： mixture model likelihood ratio test asymptotic distribution.

GRB 201223A: Implication of Fallback Accretion onto the Newborn Black Hole from its Multiband Afterglow

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Research in Astronomy and Astrophysics 2025年第02期 13-22页

作者： Tian-Hua Lu Dong Xu Wei-Hua lei Shao-Yu Fu Shuai-qing Jiang Zi-Pei zhu Xing Liu Jie An Key Laboratory of Space Astronomy and Technology National Astronomical Observatories Chinese Academy of Sciences School of Astronomy and Space Science University of Chinese Academy of Sciences Chinese Academy of Sciences Department of Astronomy School of Physics Huazhong University of Science and Technology

Multiband afterglow observations of gamma-ray bursts（GRBs） are important for studying the central ***201223A is a GRB with prompt optical detection by GW *** we report on the early optical afterglow of GRB 201223A detected by NEXT（only 2.8 minutes after the Swift/BAT trigger）,which smoothly connects the prompt optical emission and the afterglow *** Amati diagrams and considering the detection of afterglow emission in the Swift u-band,we suggest a redshift range of *** on our optical data and combined with early optical observation from GW AC and early X-ray data from Swift/XRT,a multiband fitting is performed using PyFRS,and we obtain the best afterglow parameters（assuming a redshift of z=1.0）:EK,iso=5.01-1.70+1.91× 1054erg,Γ0=426.58-138.18+148.86,θj=25.98-10.54+9.67deg,n0=0.30-0.26+3.78cm-3,p=2.32-0.01+0.01,εe=3.31-0.86+1.59× 10-5,εB=3.47-2.62+4.12× *** late-time X-ray shows a re-brightening,indicating late-time central engine *** comparing the leading two central engine models,i.e.,magnetar model and hyperaccreting black hole model,we find that the fallback accretion onto a newborn black hole provides a better explanation for the X-ray re-brightening with fallback accretion rate Mp（■）2.76 × 10-9M⊙s-1and the total fallback accreted mass Mfb（■）1.41 × 10-6M⊙.

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Empirical Likelihood for Response Differences in Two Linear Regression Models with Missing Data

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Acta Mathematicae Applicatae Sinica 2015年第4期31卷 963-976页

作者： yong-song qin Tao QIU qing-zhu lei Department of Mathematics Guangxi Normal University Guilin

Oonsider two linear models Xi = U＇β ＋ ei, Yj = V1/2y ＋ ηj with response variables missing at random. In this paper, we assume that X, Y are missing at random （MAR） and use the inverse probability weighted imputation to produce ＇complete＇ data sets for X and Y. Based on these data sets, we construct an empirical likelihood （EL） statistic for the difference of X and Y （denoted as A）, and show that the EL statistic has the limiting distribution of X~, which is used to construct a confidence interval for A. Results of a simulation study on the finite sample performance of EL-based confidence intervals on A are reported.

关键词： linear model inverse probability weighted imputation empirical likelihood missing at random confidence interval

Empirical Likelihood for Quantiles Under Associated Samples

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Acta Mathematicae Applicatae Sinica 2015年第1期31卷 71-80页

作者： Ying-hua LI yong-song qin qing-zhu lei School of Mathematics and Statistics Guangxi Normal University

The construction of confidence intervals for quantiles of a population under a associated sample is studied by using the blockwise technique. It is shown that the blockwise empirical likelihood （EL） ratio statistic is asymptotically X2-type distributed, which is used to obtain EL-based confidence intervals for quantiles of a population.

关键词： quantile associated sample blockwise empirical likelihood confidence interval

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清代云南科举宾兴与边疆文教治理

清史研究 2025年第1期 109-123页

作者：秦磊云南大学历史与档案学院昆明650091

作为边疆社会开展的公益助考活动,宾兴与慈善机构有着类似的发展逻辑和公益性质。清代云南宾兴开展的动因,一方面在于会试盘费政策弊端以及童、乡试中国家资助的缺位,另一方面在于云南士子赴考距离辽远,还面临收取应考费用和陋规的现象... 详细信息

作为边疆社会开展的公益助考活动,宾兴与慈善机构有着类似的发展逻辑和公益性质。清代云南宾兴开展的动因,一方面在于会试盘费政策弊端以及童、乡试中国家资助的缺位,另一方面在于云南士子赴考距离辽远,还面临收取应考费用和陋规的现象。云南宾兴创设采取两种模式,分别为专项基金与附设文教机构,具有小家庭结构特征。作为联结文教治边理念和文教举措的“中层纽带”,宾兴不仅具有推广崇儒尚学之风、净化世风民俗之效,还增加应考人数,惠及广大士子,实际上已通过民众教化和登科入仕缔造国家认同意识,成为维系边疆社会稳定、实现间接治理的有效途径。

关键词：清代云南宾兴边疆治理