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SiO2 nanoparticle-regulated crystallization of lead halide perovskite and improved efficiency of carbon-electrode-based low-temperature planar perovskite solar cells

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Chinese Physics B 2020年第7期29卷 576-582页

作者： Zerong Liang Bingchu Yang Anyi Mei Siyuan Lin Hongwei Han yongbo yuan Haipeng Xie Yongli Gao Conghua Zhou Hunan Key Laboratory of Super-microstructure and Ultrafast Process School of Physics and ElectronicsCentral South UniversityChangsha 410083China Michael Grä tzel Center for Mesoscopic Solar CellsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China Department of Physics and Astronomy University of RochesterRochesterNY 14627USA

SiO2 nanoparticles were used to regulate the crystallizing process of lead halide perovskite films prepared by the sequential deposition method,which was used in the low-temperature-processed,carbon-electrode-basing,hole-conductor-free planar perovskite solar *** was observed that,after adding small amount of SiO2 precursor(1 vol%)into the lead iodide solution,performance parameters of open-circuit voltage,short-circuit current and fill factor were all upgraded,which helped to increase the power conversion efficiency(reverse scan)from 11.44(±1.83)%(optimized at 12.42%)to 14.01(±2.14)%(optimized at 15.28%,AM 1.5G,100 mW/cm^2).Transient photocurrent decay curve measurements showed that,after the incorporation of SiO2 nanoparticles,charge extraction was accelerated,while transient photovoltage decay and dark current curve tests both showed that recombination was *** improvement is due to the improved crystallinity of the perovskite film.X-ray diffraction and scanning electron microscopy studies observed that,with incorporation of amorphous SiO2 nanoparticles,smaller crystallites were obtained in lead iodide films,while larger crystallites were achieved in the final perovskite *** study implies that amorphous SiO2 nanoparticles could regulate the coarsening process of the perovskite film,which provides an effective method in obtaining high quality perovskite film.

关键词： perovskite solar cell carbon-electrode crystallization low temperature SiO2 lead iodide

Application of Artificial Intelligence and Visualization Technology in Construction Risk Prediction

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Application of Artificial Intelligence and Visualization Tec...

A chlorinated lactone polymer donor featuring high performance and low cost

2010 3rd International Conference on Computer and Electrical Engineering(ICCEE 2010)

作者： Liu Yan Zhang Mingyuan yuan yongbo Faculty of Infrastructure Engineering Dalian University of Technology

Artificial intelligence and visualization is a trend in the practical application of computers and in the research of project risk prediction methods. Although the unity, uncertainty, poor regularity and the one- time characteristic lead few applications of artificial intelligence in the field at present, yet the phenomenon of excessive investment and serious loss resulted from prediction errors make that the scientific methods to solve them are urgent. Based on the features mentioned above, traditional decision-making and forecast has a strong prevalence of subjectivity and big deviation. While the CBR of the artificial intelligence, as a scientific method referred to historical experiences, makes use of the existing data to provide the basis for decision-making and prediction by optimizing the search database to find a similar case. Based on this, this article will introduce intelligent algorithm CBR to the risk prediction step using CBR’s storage and search capabilities to find out the similar cases with the project to be built on key attributes, and make those completed projects’ risk data and solutions as a basis for decision making so as to uncover potential risks more objectively and comprehensively and learn from past experience measures to give preventive strategies. Meanwhile, the 3D-WebGIS technology can not only intuitively display the predictions and solutions, but also provide the functions to search and timely release information.

关键词： CBR artificial intelligence WebGIS risk prediction

来源： cnki会议评论

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Journal of Semiconductors 2022年第5期43卷 15-31页

作者： Ke Jin Zongliang Ou Lixiu Zhang yongbo yuan Zuo Xiao Qiuling Song Chenyi Yi Liming Ding Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China College of Materials Science&Engineering Huaqiao UniversityXiamen 361021China State Key Laboratory of Power System Department of Electrical EngineeringTsinghua UniversityBeijing 100084China School of Physics and Electronics Central South UniversityChangsha 410083China

The development of low-bandgap nonfullerene acceptors and wide-bandgap polymer donors speeds up the advance of organic solar cells(OSCs)[1-17]. Wide-bandgap copolymers based on fused-ring acceptor units are ideal donor materials due to their low-lying HOMO levels, high hole mobilities and complementary light absorption to nonfullerene acceptors[18-25]. Currently, high-performance donors with 18%power conversion efficiencies(PCEs) belong to this type.

关键词： donor polymer performance

Solution-processed ultra-flexible C8-BTBT organic thin-film transistors with the corrected mobility over 18 cm^2/(V s)

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Science Bulletin 2020年第10期65卷 791-795,M0003页

作者： Pengshan Xie Tianjiao Liu Jia Sun Jie Jiang yongbo yuan Yongli Gao Jianfei Zhou Junliang Yang State Key Laboratory of Powder Metallurgy School of Physics and ElectronicsCentral South UniversityChangsha 410083China Department of Physics and Astronomy University of RochesterNew YorkNY 14627USA Lucky Huaguang Graphics Co. LtdNanyang 473003China

Organic thin film transistors(OTFTs)show great potential for applications in low-cost,light-weight flexible *** were first reported in 1986 with polythiophene as the active layer material with a mobility of^105 cm2/(V s)[1].Since then,OTFTs have shown impressive improvements in device performance parameters,e.g.,mobility improved by over 4 orders of *** advances followed discoveries of new materials and improvements in device engineering,as well as in morphology and interface engineering[2–4].Flexible OTFTs(f-OTFTs)as a very important electronic component in flexible electronics are attracting a great deal of attention from both academic and industrial ***,f-OTFTs are potentially used for electronic skin[5],flexible organic integrated circuits[6],flexible active matrix displays[7]and neuromorphic devices[8].

关键词：有机薄膜晶体管高迁移率栅电极溶液法校正因子弯曲半径活性层沉积金属

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农村中小学现代远程教育工程的可持续发展

中国远程教育 2011年第5期 85-88页

作者：苑永波周雪菲黑龙江省教育学院 150080

随着农村中小学现代远程教育工程项目的实施,如何确保项目的可持续发展,是需要研究和解决的问题。本文分别从管理的可持续发展、资源的可持续发展、设备维护的可持续发展、应用的可持续发展几个角度提出了一些农村中小学远程教育工程有... 详细信息

随着农村中小学现代远程教育工程项目的实施,如何确保项目的可持续发展,是需要研究和解决的问题。本文分别从管理的可持续发展、资源的可持续发展、设备维护的可持续发展、应用的可持续发展几个角度提出了一些农村中小学远程教育工程有效实施的设想。

关键词：农村中小学现代远程教育工程可持续发展

CsPb(I_(x)Br_(1-x))_(3) solar cells

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Science Bulletin 2019年第20期64卷 1532-1539页

作者： Xue Jia Chuantian Zuo Shuxia Tao Kuan Sun Yixin Zhao Shangfeng Yang Ming Cheng Mingkui Wang yongbo yuan Junliang Yang Feng Gao Guichuan Xing Zhanhua Wei Lijun Zhang Hin-Lap Yip Mingzhen Liu Qing Shen Longwei Yin Liyuan Han Shengzhong Liu Lianzhou Wang Jingshan Luo Hairen Tan Zhiwen Jin Liming Ding Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing100190China University of Chinese Academy of Sciences Beijing100049China CSIRO Manufacturing Bag10Clayton SouthVictoria3169Australia Center for Computational Energy Research Department of Applied PhysicsEindhoven University of Technology5600MB EindhovenThe Netherlands MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems Chongqing UniversityChongqing400044China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai200240China Department of Materials Science and Engineering University of Science and Technology of ChinaHefei230026China Institute for Energy Research Jiangsu UniversityZhenjiang212013China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan430074China School of Physics and Electronics Central South UniversityChangsha410083China Department of Physics Chemistry and BiologyLinkoping UniversitySE-58183 LinkopingSweden Institute of Applied Physics and Materials Engineering University of MacaoMacao999078China College of Materials Science&Engineering Huaqiao UniversityXiamen361021China College of Materials Science and Engineering Jilin UniversityChangchun130012China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou510640China Center for Applied Chemistry School of Materials and EnergyUniversity of Electronic Science and Technology of ChinaChengdu611731China Faculty of Informatics and Engineering The University of Electro-CommunicationsTokyo182-8585Japan School of Materials Science and Engineering Shandong UniversityJinan250061China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Normal UniversityXi’an710119China

Owing to its nice performance, low cost, and simple solution-processing, organic-inorganic hybrid perovskite solar cell(PSC) becomes a promising candidate for next-generation high-efficiency solar *** power conversion efficiency(PCE) has boosted from 3.8% to 25.2% over the past ten years. Despite the rapid progress in PCE, the device stability is a key issue that impedes the commercialization of PSCs. Recently, all-inorganic cesium lead halide perovskites have attracted much attention due to their better stability compared with their organic-inorganic counterpart. In this progress report, we summarize the properties of CsPb(IxBr1-x)3 and their applications in solar cells. The current challenges and corresponding solutions are discussed. Finally, we share our perspectives on CsPb(IxBr1-x)3 solar cells and outline possible directions to further improve the device performance.

关键词： Perovskite solar cells Cesium lead halide perovskites Power conversion efficiency Stability

A chlorinated copolymer donor demonstrates a 18.13% power conversion efficiency

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Journal of Semiconductors 2021年第1期42卷 11-15,16-23页

作者： Jianqiang Qin Lixiu Zhang Chuantian Zuo Zuo Xiao yongbo yuan Shangfeng Yang Feng Hao Ming Cheng Kuan Sun Qinye Bao Zhengyang Bin Zhiwen Jin and Liming Ding Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China Key Laboratory of Low-grade Energy Utilization Technologies and Systems(MOE) School of Energy and Power EngineeringChongqing UniversityChongqing 400044China Hunan Key Laboratory of Super Microstructure and Ultrafast Process School of Physics and ElectronicsCentral South UniversityChangsha 410083China Department of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China Institute for Energy Research Jiangsu UniversityZhenjiang 212013China Key Laboratory of Polar Materials and Devices(MoE) School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China College of Chemistry Sichuan UniversityChengdu 610064China School of Physical Science and Technology Lanzhou UniversityLanzhou 730000China

The rapid development of low-bandgap(LBG)nonfullerene acceptors and wide-bandgap(WBG)copolymer donors in recent years has boosted the power conversion efficiency(PCE)of organic solar cells(OSCs)to the 18%level[1−21].The commercialization of OSCs is highly ***,critical issues like the cost and the stability also determine whether OSCs can enter the market or not[22].

关键词： copolymer donor stability

基于集对势的供水系统级联失效下节点重要度分析

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自然灾害学报 2015年第4期24卷 197-206页

作者：张明媛高颖袁永博大连理工大学建设工程学部辽宁大连116024

供水网络在灾害作用下的破坏模式多为由于网络中某些节点的破坏造成整个系统的连锁反应,级联失效的现象放大了管网系统遭受破坏的影响范围和程度,因此判断级联失效下的供水管网节点重要度对系统抗灾能力研究具有一定的意义。以往研究没... 详细信息

供水网络在灾害作用下的破坏模式多为由于网络中某些节点的破坏造成整个系统的连锁反应,级联失效的现象放大了管网系统遭受破坏的影响范围和程度,因此判断级联失效下的供水管网节点重要度对系统抗灾能力研究具有一定的意义。以往研究没有考虑系统发生一次破坏后的暂时稳定状态之后的发展趋势,以及处于暂时稳定状态的节点对系统最终可能状态的影响。基于集对分析理论,通过计算集对势,对供水网络一次破坏之后的系统发展态势进行了分析,利用集对势分析网络中节点的破坏对其他节点的影响程度,进而得出供水网络节点的重要度排序。这种考虑系统发展趋势的节点重要度评价,为网络系统中的节点重要性评价提供了一种新的研究方法和思路。

关键词：节点重要度集对分析集对势供水系统级联失效

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网络专题教育社区建设与管理

中国教育技术装备 2019年第14期 14-16,24页

作者：苑永波黑龙江教师发展学院

以儿童能力建构社区为例,阐述网络专题教育社区的建设与管理,包括网络社区的目标定位与发展目标、网络社区建设的环节,以及网络社区管理过程中技术、内容和秩序三方面的管理方法。围绕"家园共育"主题,探讨如何利用互联网社区环境,建设... 详细信息

以儿童能力建构社区为例,阐述网络专题教育社区的建设与管理,包括网络社区的目标定位与发展目标、网络社区建设的环节,以及网络社区管理过程中技术、内容和秩序三方面的管理方法。围绕"家园共育"主题,探讨如何利用互联网社区环境,建设一个令家长与幼儿教育工作者具有归属感,能有序地开展教育活动的在线社区。

关键词：网络社区家园共育儿童能力建构社区