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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 Solids Institute of Chemistry Chinese Academy of Sciences School of Chemical Science University of Chinese Academy of Sciences Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information Engineering Zhejiang Normal University Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of Sciences Laboratory of Advanced Optoelectronic Materials College of Chemistry Chemical Engineering and Materials ScienceSoochow University

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 pero-SCs. Due to the π-π stacking among the common quinoxaline units in the bridge layer and HTM, Qx MACl induces the π-π stacking of the PBQ12 film and improves the film morphology of HTMs with better conductivity. Additionally, Qx MACl can effectively passivate the perovskite surface, and PBQ12 possesses appropriate energy levels and high hole mobility. The pero-SCs based on FAPbI3with 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 °C, respectively. To further enhance the PCE of the PBQ12/Qx MACl-based devices, we developed a non-metal ion dopant for the PBQ12 HTM. Through 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

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论杰拉德·维兹诺的“后印第安”文学世界

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河南大学学报（社会科学版） 2019年第5期59卷 94-100页

作者：生安锋刘丽慧清华大学外文系

美国本土裔作家杰拉德·维兹诺坚持传扬本土裔部族传统文学与文化,他从多个角度不断对由白人殖民者所发明并被主流文化所误用的所谓“印第安”身份进行解构与重构,打破人们对印第安人固有的偏见和错误印象,提出“后印第安”的概念,以之... 详细信息

美国本土裔作家杰拉德·维兹诺坚持传扬本土裔部族传统文学与文化,他从多个角度不断对由白人殖民者所发明并被主流文化所误用的所谓“印第安”身份进行解构与重构,打破人们对印第安人固有的偏见和错误印象,提出“后印第安”的概念,以之重新建构本土裔民族身份,并将之付诸自己的多种文学实践,通过体裁多样、数量庞大的作品,力图真实客观地描写当前美国印第安人的生存现状和思想状况。在其文学与文化实践中,多部作品相互呼应,构建起了一个“后印第安”文学世界,其中展现出的各种创新思想与技法极大地丰富了整个美国印第安文学宝库,也为我们解决某些存在争议的历史、民族、身份、政治等问题提供了可能的思考方向。

关键词：杰拉德·维兹诺 “后印第安” “生存抵抗” 印第安文学

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Infrared small target detection based on spatial attention density peaks searching

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Optoelectronics Letters 2025年第2期21卷 90-96页

作者： RAO Junmin LU Siyu liu Shijian li Fanming CAS Key Laboratory of Infrared System Detection and Imaging Technology Shanghai Institute of Technical Physics University of Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences School of Information Science and Technology Shanghai Tech University

The detection of small targets poses a significant challenge for infrared search and tracking (IRST) systems,as they must strike a delicate balance between accuracy and *** this paper,we propose a detection algorithm based on spatial attention density peaks searching (SADPS) and an adaptive window selection ***,the difference-of-Gaussians (DoG) filter is introduced for preprocessing raw infrared ***,the image is processed by ***,an adaptive window selection scheme is applied to obtain window templates for the target scale ***,the small target feature is used to enhance the target and suppress the ***,the true targets are segmented through a *** experimental results show that compared with the seven state-of-the-art small targets detection baseline algorithms,the proposed method not only has better detection accuracy,but also has reasonable time consumption.

关键词： Infrared imaging

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MoS2 synaptic transistor with one-step manufacture

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Science China(Information Sciences) 2025年第1期68卷 357-365页

作者： Yihao GUO Yang WANG Wenjie DENG Yi WU Jingtao li Kexin li Yuehui ZHAO Songlin YU Xiaoting WANG Yongzhe ZHANG hui YAN Key Laboratory of Optoelectronics Technology of Education Ministry of China Faculty of Information TechnologyBeijing University of Technology Key Laboratory of Advanced Functional Materials Ministry of Education Faculty of Materials and ManufacturingBeijing University of Technology The 11th Research Institute of Electronics Technology Group Corporation

The synaptic transistor,which is a neuromorphic device with brain-like functions,has garnered significant attention due to characteristics such as low energy consumption,high integration,multiple functions,and high computational ***,the current synaptic transistor possesses a complicated structure and involves complex manufacturing steps,which is not conducive to low-cost,large-scale bionic ***,we introduce a simple MoS2synaptic transistor exhibiting robust synaptic *** transistor utilizes magnetron sputtering manufacture to combine the process of device metal electrode deposition and the introduction of defect states,which helps streamline the manufacturing process into a single *** long-term potentiation and long-term depression in photoelectric coordination are initially ***,biological functions,such as double pulse facilitation and the transformation behavior of short-term memory to long-term memory,are thoroughly evaluated,along with learning-forgetting-relearning ***,the device exhibits robust synaptic plasticity until incident light angles down to 30° to imitate the multi-to-one axon-cellular ***,a classical simulation of Pavlov's dog conditioned reflex is demonstrated along with the multiview extraction *** experimental results demonstrate a promising synaptic transistor with a simple structure,manufacturing technique,and excellent *** further indicates the potential for large-scale integration of bionic neuromorphic systems.

关键词： process optimization artificial synaptic device one-stepmanufacture synaptic plasticity bionic simulation

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Modular assembly of Co4-thiacalix[4]arene units and Keggin-type SiW12O40 for visible-light photothermal conversion

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Tungsten 2025年第1期7卷 112-119页

作者： Jia-hui li Qing Zhao Dong-Ao Mao Kun Zhou Bao-Kuan Chen Yan-Feng Bi School of Petrochemical Engineering Liaoning Petrochemical University

The construction of metal-organic coordination clusters（MCCs） using modular secondary building units is an important method for preparing functional *** this study,two new MCCs modularly assembled from Keggin-type {SiW12O40}H4TC4A=p-tert-Butylthiacalix[4]arene(SiW12) units and thiacalixarene-supported Co4-thiacalix[4]arene(Co4-TC4A polynuclear second-building units（PSBUs,H4TC4A=p-tert-Butylthiacalix[4]arene） are *** two MCCs,abbreviated as Co4-SiW12and Co8-SiW12,were structurally characterized by single-crystal X-ray *** Co4-SiW12is a supramolecular structure involving cation-anion interactions between Co4-TC4A PSBUs and ***8-SiW12features "barbell-like" shapes with two Co4-TC4A coordinatively linked to a Keggin-type SiW12unit on opposite via W-O_t-Co *** coordination of Co4-TC4A to SiW12in Co8-SiW12resulted in significantly improved photothermal conversion performances compared with Co4-SiW12and pure SiW12or ***-gap determination and photophysical analysis combined with density functional theory calculations indicated the binding mode between Co4-TC4A PSBUs and SiW12,which considerably influences the way of electron transport and the conversion ability of visible light to heat.

关键词： Modular construction Photothermal conversion Polyoxometalate Thiacalixarene

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Dual contour edge information fusion for 3D aircraft skin circular hole detection

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Optoelectronics Letters 2025年第2期21卷 105-112页

作者： liu Hongjun ZHANG Naiwen MENG Fanxi li Boyuan School of Mechanical and Electrical Engineering Shenyang University of Aeronautics and Astronautics

To address the challenges of varied aircraft skin hole detection types and susceptibility to noise,this paper proposes a method based on the perspective of dual contour edge information *** core method combines stereoscopic vision and structured light dual contour information consistently,focusing on extracting edge point information around the hole edge to achieve precise detection of circular *** this approach,a line multi-directional gradient feature detector (LMGFD) is introduced for locating the holes from plane stereoscopic ***,we establish a three-dimensional (3D) circular hole detection method (BPCircle) based on the dual contour edge information ***,experiments demonstrate that our proposed method achieves superior accuracy and robustness based on public benchmark dataset and our own collected standard IPCDS dataset (including two-dimensional (2D)images,3D point clouds,and measured data of three-coordinate measuring machine).The dataset and code can be found from https://***/Nicholsdqw/123.

关键词： Stereo image processing

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农业结构调整成效及其影响因素的协整分析

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经济问题 2014年第7期 85-89页

作者：刘丽辉吴彩容佛山科学技术学院经济管理学院广东佛山528000

以亩均农业生产总值作为农业结构调整成效的量化指标,运用协整检验方法对影响广东农业结构调整成效的六个指标进行实证分析。研究发现:亩均农业生产总值与亩均农业机械总动力、农村用电量和农林水事务财政支出显著正相关,与亩均乡镇第... 详细信息

以亩均农业生产总值作为农业结构调整成效的量化指标,运用协整检验方法对影响广东农业结构调整成效的六个指标进行实证分析。研究发现:亩均农业生产总值与亩均农业机械总动力、农村用电量和农林水事务财政支出显著正相关,与亩均乡镇第一产业从业人员数显著负相关。同时得到一个全新的结论:亩均化肥施用量和农药使用量已进入边际效应递减阶段,与亩均农业生产总值无明显相关关系。对结果逐一分析并解释原因后,提出了相应的政策建议。

关键词：农业结构调整成效协整检验

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乳腺癌康复患者预防上肢淋巴水肿的运动康复经验访谈

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中国康复理论与实践 2019年第8期25卷 986-992页

作者：邱慧刘均娥苏娅丽刘俐惠韩静首都医科大学护理学院北京市100069 首都医科大学附属北京天坛医院北京市100050 首都医科大学附属北京世纪坛医院北京市100038

目的描述乳腺癌康复患者预防上肢淋巴水肿的运动康复经验,为临床医护人员指导乳腺癌患者出院后的运动康复项目提供具有可行性和可操作性的活动与运动康复信息。方法2017年7月至2018年6月,对一直坚持每周3次以上进行上肢淋巴水肿运动锻... 详细信息

目的描述乳腺癌康复患者预防上肢淋巴水肿的运动康复经验,为临床医护人员指导乳腺癌患者出院后的运动康复项目提供具有可行性和可操作性的活动与运动康复信息。方法2017年7月至2018年6月,对一直坚持每周3次以上进行上肢淋巴水肿运动锻炼的乳腺癌康复患者进行个体化的面对面深度访谈,采用内容分析法分析资料。结果纳入13例能够提供丰富经验的受访者,提炼出乳腺癌康复患者预防上肢淋巴水肿的运动经验,包括运动类型、名称、时间、频率、强度、注意事项及其详细的具有可操作性的运动康复经验。结论本研究提炼并描述了乳腺癌康复患者预防上肢淋巴水肿的运动康复经验,丰富和细化了目前乳腺癌康复患者预防上肢淋巴水肿的行为指南,有助于加深医护人员对乳腺癌康复患者预防上肢淋巴水肿实际情况的了解,为医护人员制定淋巴水肿的预防性干预措施提供参考资料。

关键词：乳腺癌上肢淋巴水肿运动康复经验

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Clinical observation of white eye distribution in patients with hyperlipidemia: an artificial intelligence digital visual examination technique

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Journal of Traditional Chinese Medicine 2025年

作者： SONG Tianli li Haixia liu li'an Department of Cardiology， the Guang'anmen Hospital， China Academy of Chinese Medical Sciences National College， Beijing University of Chinese Medicine

Objective: To explore the clinical observation of white eye distribution characteristics of hyperlipidemic patients based on artificial intelligence digital eye diagnosis technology. Methods: One hundred and fifty subjects were examined in the outpatient and inpatient departments of Guang'anmen Hospital of the China Academy of Traditional Chinese Medicine from 01 February 2022 to 01 February 2023， including 80 cases in the hyperlipidemic patient (HLP) group and 70 cases in the normal lipid level patient (NC) group. The two groups were collected and extracted by the artificial intelligence visual diagnostic instrument and analyzed by the MyEyeD-10 white eye shadowless imaging health intelligence analysis system. Finally， SPSS 26.0 (Version X; IBM Corp.， Armonk， NY， USA) was used for statistical processing. Results: Significant differences were noted in the scores of "spot" and "foggy" features between the two groups. Between groups， the "spot" feature score of the white eye morphology in the HLP group (11.07 ± 3.22) was higher than that in the NC group (7.50 ± 4.11) (P liver) eye-contact region scores between the two groups， and the "B"， "O" (spleen) and "M" (liver) eye-contact region scores were significantly different. The scores of the white eye channel region in the HLP group were significantly higher than those in the control group， with the "A"， "B"， and "O" regions (P < 0.01)， "M" region (P < 0.01)， "A"， "B"， "O"， and "M" region (P < 0.01). "M" zone (P < 0.05). The scores of "dull red" and "yellow" features were significantly different， and the scores of "dull red" and "yellow" colors of the white eye choroid in the HLP group were significantly higher than those in the HLP g

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Investigation of bubbles escape behavior from low basicity mold flux for high-Mn high-Al steels using 3D X-ray microscope

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 102-110页

作者： Qiang liu Xiang li Shen Du Ming Gao Yanbin Yin Jiongming Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

During the continuous casting process of high-Mn high-Al steels,various types of gases such as Ar need to escape through the top of the *** which,the behavior of bubbles traversing the liquid slag serves as a restrictive link,closely associated with viscosity and the thickness of liquid *** contrast to two-dimensional surface observation,three-dimensional(3D)analysis method can offer a more intuitive,accurate,and comprehensive ***,this study employs a 3D X-ray microscope(3D-XRM)to obtained spatial distribution and 3D morphological characteristics of residual bubbles in mold flux under different basicity of liquid slag,different temperatures,and different holding *** results indicate that as basicity of slag increases from 0.52 to 1.03,temperature increases from 1423 to 1573 K,the viscosity of slag decreases,the floating rate of bubbles *** addition,when holding time increases from 10 to 30 s,the bubbles floating distance increases,and the volume fraction and average equivalent sphere diameter of the bubbles solidified in the mold flux gradually *** one word,increasing the basicity,temperature,and holding time leading to an increase in the removal rate of bubbles especially for the *** findings of bubbles escape behavior provide valuable insights into optimizing low basicity mold flux for high-Mn high-Al steels.

关键词： mold flux low basicity bubbles three-dimensional X-ray microscope viscosity

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