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Perovskite-transition metal dichalcogenides heterostructures: recent advances and future perspectives

Opto-Electronic science 2022年第8期1卷 1-40页

作者： Ahmed Elbanna Ksenia Chaykun Yulia Lekina Yuanda Liu Benny Febriansyah Shuzhou Li Jisheng Pan Ze Xiang Shen Jinghua Teng Institute of Materials Research and Engineering Agency for ScienceTechnology and Research(A*STAR)2 Fusionopolis WaySingapore 138634Singapore Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological University50 Nanyang AvenueSingapore 637371Singapore Interdisciplinary Graduate Program Energy Research Institute@NTUNanyang Technological University50 Nanyang AvenueSingapore 639798Singapore The Photonics Institute and Center for Disruptive Photonic Technologies Nanyang Technological University50 Nanyang AvenueSingapore 639798 Singapore School of Materials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore Berkeley Educational Alliance for Research in Singapore(BEARS) Ltd.1 CREATE WaySingapore 138602Singapore.

Transition metal dichalcogenides(TMDs)and perovskites are among the most attractive and widely investigated semiconductors in the recent *** are promising materials for various applications,such as photodetection,solar energy harvesting,light emission,and many *** these materials to form heterostructures can enrich the already fascinating properties and bring up new phenomena and *** in this field is growing rapidly in both fundamental studies and device ***,we review the recent findings in the perovskite-TMD heterostructures and give our perspectives on the future development of this promising *** fundamental properties of the perovskites,TMDs,and their heterostructures are discussed first,followed by a summary of the synthesis methods of the perovskites and TMDs and the approaches to obtain high-quality *** attention is paid to the TMD-perovskite heterostructures that have been applied in solar cells and photodetectors with notable performance *** through our analysis,we propose an outline on further fundamental studies and the promising applications of perovskite-TMD heterostructures.

关键词： transition metal dichalcogenides perovskites heterostructures photodetectors solar cells 2D materials

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Correction: Fabrication and Characterization of Carbon Nanotubes-Based Pressure Nanosensors: A Study on Piezoresistive Behavior

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Transactions on Electrical and Electronic materials 2024年第1期25卷 121-121页

作者： Khan, Faiza Mubashir, Talha Ahmed, Kainat Mateen, Abdul Lee, Soonil Ahmed, Tauseef Department of Nanoscience and Technology Preston Institute of Nanoscience and Technology PINSAT Islamabad Pakistan Department of Applied Ecology and Biotechnology Inland Norway University of Applied Sciences Hamar Norway Interdisciplinary Program in Senior Human Ecology Changwon National University Gyeongnam Republic of Korea Department of Mineral Processing Engineering Pak-Austria Fachhochschule Institute of Applied Sciences & Technology Haripur Pakistan School of Materials Science and Engineering Changwon National University Gyeongnam Republic of Korea Department of Materials Science & Engineering Institute of Space Technology Islamabad Pakistan

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Meaningful human control: actionable properties for AI system development

arXiv

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arXiv 2021年

作者： Siebert, Luciano Cavalcante Lupetti, Maria Luce Aizenberg, Evgeni Beckers, Niek Zgonnikov, Arkady Veluwenkamp, Herman Abbink, David Giaccardi, Elisa Houben, Geert-Jan Jonker, Catholijn M. van den Hoven, Jeroen Forster, Deborah Lagendijk, Reginald L. AiTech Interdisciplinary Research Program on Meaningful Human Control Delft University of Technology Delft Netherlands Faculty of Electrical Engineering Mathematics and Computer Science Delft University of Technology Delft Netherlands Faculty of Industrial Design Engineering Delft University of Technology Delft Netherlands Faculty of Mechanical Maritime and Materials Engineering Delft University of Technology Delft Netherlands Faculty of Technology Policy and Management Delft University of Technology Delft Netherlands

How can humans remain in control of artificial intelligence (AI)-based systems designed to perform tasks autonomously? Such systems are increasingly ubiquitous, creating benefits - but also undesirable situations where moral responsibility for their actions cannot be properly attributed to any particular person or group. The concept of meaningful human control has been proposed to address responsibility gaps and mitigate them by establishing conditions that enable a proper attribution of responsibility for humans;however, clear requirements for researchers, designers, and engineers are yet inexistent, making the development of AI-based systems that remain under meaningful human control challenging. In this paper, we address the gap between philosophical theory and engineering practice by identifying, through an iterative process of abductive thinking, four actionable properties for AI-based systems under meaningful human control, which we discuss making use of two applications scenarios: automated vehicles and AI-based hiring. First, a system in which humans and AI algorithms interact should have an explicitly defined domain of morally loaded situations within which the system ought to operate. Second, humans and AI agents within the system should have appropriate and mutually compatible representations. Third, responsibility attributed to a human should be commensurate with that human’s ability and authority to control the system. Fourth, there should be explicit links between the actions of the AI agents and actions of humans who are aware of their moral responsibility. We argue that these four properties will support practically-minded professionals to take concrete steps toward designing and engineering for AI systems that facilitate meaningful human control. Copyright © 2021, The Authors. All rights reserved.

关键词： Artificial intelligence

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Ultraviolet to far-infrared dielectric function of n-doped cadmium oxide thin films

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Physical Review materials 2020年第2期4卷 025202-025202页

作者： J. Ryan Nolen Evan L. Runnerstrom Kyle P. Kelley Ting S. Luk Thomas G. Folland Angela Cleri Jon-Paul Maria Joshua D. Caldwell Interdisciplinary Materials Science Program Vanderbilt University Nashville Tennessee USA Department of Materials Science and Engineering North Carolina State University Raleigh North Carolina USA Army Research Office CDCC US Army Research Laboratory Research Triangle Park North Carolina USA Sandia National Laboratories Albuquerque New Mexico USA Center for Integrated Nanotechnologies Sandia National Laboratories Albuquerque New Mexico USA Department of Mechanical Engineering Vanderbilt University Nashville Tennessee USA Department of Materials Science and Engineering The Pennsylvania State University University Park Pennsylvania USA

Spectroscopic ellipsometry and Fourier transform infrared spectroscopy were applied to extract the ultraviolet to far-infrared (150–33333cm−1) complex dielectric functions of high-quality, sputtered indium-doped cadmium oxide (In:CdO) thin crystalline films on MgO substrates possessing carrier densities (Nd) ranging from 1.1×1019cm−3 to 4.1×1020cm−3. A multiple oscillator fit model was used to identify and analyze the three major contributors to the dielectric function and their dependence on doping density: interband transitions in the visible, free-carrier excitations (Drude response) in the near- to far-infrared, and IR-active optic phonons in the far-infrared. More specifically, values pertinent to the complex dielectric function such as the optical band gap (Eg), are shown here to be dependent upon carrier density, increasing from approximately 2.5–3 eV, while the high-frequency permittivity (ɛ∞) decreases from 5.6 to 5.1 with increasing carrier density. The plasma frequency (ωp) scales as Nd, resulting in ωp values occurring within the mid- to near-IR, and the effective mass (m*) was also observed to exhibit doping density-dependent changes, reaching a minimum of 0.11mo in unintentionally doped films (1.1×1019cm−3). Good quantitative agreement with prior work on polycrystalline, higher-doped CdO films is also demonstrated, illustrating the generality of the results. The analysis presented here will aid in predictive calculations for CdO-based next-generation nanophotonic and optoelectronic devices, while also providing an underlying physical description of the key properties dictating the dielectric response in this atypical semiconductor system.

关键词： Plasmonics Doped semiconductors Transparent conducting oxides Ellipsometry Fourier transform infrared spectroscopy Sputtering

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Reconfigurable multi-state optical systems enabled by VO2 phase transitions

arXiv

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arXiv 2021年

作者： Duan, Xiaoyang White, Samuel T. Cui, Yuanyuan Neubrech, Frank Gao, Yanfeng Haglund, Richard F. Liu, Na Max Planck Institute for Intelligent Systems Heisenbergstrasse 3 Stuttgart70569 Germany Department of Physics and Astronomy Vanderbilt University NashvilleTN37212 United States School of Materials Science and Engineering Shanghai University Shanghai200444 China Interdisciplinary Materials Science Program Vanderbilt University NashvilleTN37212 United States 2nd Physics Institute University of Stuttgart Pfaffenwaldring 57 Stuttgart70569 Germany Max Planck Institute for Solid State Research Heisenbergstrasse 1 Stuttgart70569 Germany

Reconfigurable optical systems are the object of continuing, intensive research activities, as they hold great promise for realizing a new generation of compact, miniaturized and flexible optical devices. However, current reconfigurable systems often tune only a single state variable triggered by an external stimulus, thus leaving out many potential applications. Here we demonstrate a reconfigurable multi-state optical system enabled by phase transitions in vanadium oxide (VO2). By controlling the phase-transition characteristics of VO2 with simultaneous stimuli, the responses of the optical system can be reconfigured among multiple states. In particular, we show a quadruple-state dynamic plasmonic display that responds to both temperature tuning and hydrogen-doping. Furthermore, we introduce an electron-doping scheme to locally control the phase-transition behaviour of VO2, enabling an optical encryption device encoded by multiple keys. Our work points the way toward advanced multi-state reconfigurable optical systems, which substantially outperform current optical devices in both breadth of capabilities and functionalities. © 2021, CC BY.

关键词： Oxides

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Emerging contaminants:A One Health perspective

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The Innovation 2024年第4期5卷 140-170,139页

作者： Fang Wang Leilei Xiang Kelvin Sze-Yin Leung Martin Elsner Ying Zhang Yuming Guo Bo Pan Hongwen Sun Taicheng An Guangguo Ying Bryan WBrooks Deyi Hou Damian EHelbling Jianqiang Sun Hao Qiu Timothy MVogel Wei Zhang Yanzheng Gao Myrna JSimpson Yi Luo Scott XChang Guanyong Su Bryan MWong Tzung-May Fu Dong Zhu Karl JJobst Chengjun Ge Frederic Coulon Jean Damascene Harindintwali Xiankui Zeng Haijun Wang Yuhao Fu Zhong Wei Rainer Lohmann Changer Chen Yang Song Concepcion Sanchez-Cid Yu Wang Ali El-Naggar Yiming Yao Yanran Huang Japhet Cheuk-Fung Law Chenggang Gu Huizhong Shen Yanpeng Gao Chao Qin Hao Li Tong Zhang Natàlia Corcoll Min Liu Daniel SAlessi Hui Li Kristian KBrandt Yolanda Pico Cheng Gu Jianhua Guo Jianqiang Su Philippe Corvini Mao Ye Teresa Rocha-Santos Huan He Yi Yang Meiping Tong Weina Zhang Fidèle Suanon Ferdi Brahushi Zhenyu Wang Syed AHashsham Marko Virta Qingbin Yuan Gaofei Jiang Louis A.Tremblay Qingwei Bu Jichun Wu Willie Peijnenburg Edward Topp Xinde Cao Xin Jiang Minghui Zheng Taolin Zhang Yongming Luo Lizhong Zhu Xiangdong Li DamiàBarceló Jianmin Chen Baoshan Xing Wulf Amelung Zongwei Cai Ravi Naidu Qirong Shen Janusz Pawliszyn Yong-guan Zhu Andreas Schaeffer Matthias C.Rillig Fengchang Wu Gang Yu James M.Tiedje State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China Department of Chemistry Hong Kong Baptist UniversityHong KongChina HKBU Institute of Research and Continuing Education Shenzhen Virtual University ParkShenzhenChina Technical University of Munich TUM School of Natural SciencesInstitute of Hydrochemistry85748 GarchingGermany School of Resources&Environment Northeast Agricultural UniversityHarbin 150030China Climate Air Quality Research UnitSchool of Public Health and Preventive MedicineMonash UniversityMelbourneVICAustralia Faculty of Environmental Science&Engineering Kunming University of Science&TechnologyKunming 650500China Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Ministry of Education Key Laboratory of Environmental Theoretical Chemistry South China Normal UniversityGuangzhouGuangdong 510006China Department of Environmental Science Baylor UniversityWacoTXUSA Center for Reservoir and Aquatic Systems Research(CRASR) Baylor UniversityWacoTXUSA School of Environment Tsinghua UniversityBeijing 100084China School of Civil and Environmental Engineering Cornell UniversityIthacaNY 14853USA Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province Zhejiang University of TechnologyHangzhou 310014China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Laboratoire d’Ecologie Microbienne Universite Claude Bernard Lyon 1UMR CNRS 5557UMR INRAE 1418VetAgro Sup69622 VilleurbanneFrance Department of Pla

Environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary *** global efforts to mitigate legacy pollutants,the continuous introduction of new substances remains a major threat to both people and the *** response,global initiatives are focusing on risk assessment and regulation of emerging contaminants,as demonstrated by the ongoing efforts to establish the UN’s Intergovernmental science-Policy Panel on Chemicals,Waste,and Pollution *** review identifies the sources and impacts of emerging contaminants on planetary health,emphasizing the importance of adopting a One Health *** for monitoring and addressing these pollutants are discussed,underscoring the need for robust and socially equitable environmental policies at both regional and international *** actions are needed to transition toward sustainable pollution management practices to safeguard our planet for future generations.

关键词： pollution planet contaminants

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BPS2025 - Artificial intelligence enabled image analysis of genomic DNA visualized under electron microscopy using nanoparticle-tagged peptides

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Biophysical Journal 2025年第3期124卷 311a-312a页

作者： Priyannth Ramasami Sundharbaabu Junhyuck Chang Yunchul Kim Youmin Shim Byoungsang Lee Chanyoung Noh Sujung Heo Seung S. Lee Sang-Hee Shim Kwang-il Lim Kyubong Jo Jung H. Lee Department of Advanced Materials Science and Engineering Sungkyunkwan University Suwon-si Republic of Korea Department of Chemistry and Interdisciplinary Program of Integrated Biotechnology Sogang University Seoul Republic of Korea School of Chemistry and Chemical Engineering University of Southampton Southampton United Kingdom Department of Chemistry Korea University Seoul Republic of Korea Department of Chemical and Biological Engineering Sookmyung Women’s University Seoul Republic of Korea Department of MetaBioHealth Sungkyunkwan University Suwon-si Republic of Korea

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Recent Advancements in engineering Strategies for Manipulating Neural Stem Cell Behavior

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Current tissue microenvironment reports 2020年第2期1卷 41-47页

作者： Brian J O'Grady Ethan S Lippmann Department of Chemical and Biomolecular Engineering Vanderbilt University Nashville TN USA. Department of Biomedical Engineering Vanderbilt University Nashville TN USA. Vanderbilt Brain Institute Vanderbilt University Nashville TN USA. Interdisciplinary Materials Science Program Vanderbilt University Nashville TN USA.

PURPOSE OF REVIEW:Stem cells are exquisitely sensitive to biophysical and biochemical cues within the native microenvironment. This review focuses on emerging strategies to manipulate neural cell behavior using these influences in three-dimensional (3D) culture systems. RECENT FINDINGS:Traditional systems for neural cell differentiation typically produce heterogeneous populations with limited diversity rather than the complex, organized tissue structures observed . Advancements in developing engineering tools to direct neural cell fates can enable new applications in basic research, disease modeling, and regenerative medicine. SUMMARY:This review article highlights engineering strategies that facilitate controlled presentation of biophysical and biochemical cues to guide differentiation and impart desired phenotypes on neural cell populations. Specific highlighted examples include engineered biomaterials and microfluidic platforms for spatiotemporal control over the presentation of morphogen gradients.

关键词： biomaterial morphogen gradient neural stem cell stem cell differentiation

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Correction: Fabrication and Characterization of Carbon Nanotubes-Based Pressure Nanosensors: A Study on Piezoresistive Behavior

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Transactions on Electrical and Electronic materials 2023年第1期25卷 120-120页

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Enhanced Surface Interactions Enable Fast Li+ Conduction in Oxide/Polymer Composite Electrolyte

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Advanced materials 2020年第10期59卷 4160-4166页

作者： Wu, Nan Chien, Po-Hsiu Qian, Yumin Li, Yutao Xu, Henghui Grundish, Nicholas S. Xu, Biyi Jin, Haibo Hu, Yan-Yan Yu, Guihua Goodenough, John B. Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science & Engineering Beijing Institute of Technology Beijing100081 China Materials Science and Engineering Program and Texas Materials Institute The University of Texas at Austin AustinTX78712 United States Center of Interdisciplinary Magnetic Resonance National High Magnetic Field Laboratory 1800 East Paul Dirac Drive TallahasseeFL32310 United States Department of Chemistry and Biochemistry Florida State University TallahasseeFL32306 United States

Li+-conducting oxides are considered better ceramic fillers than Li+-insulating oxides for improving Li+ conductivity in composite polymer electrolytes owing to their ability to conduct Li+ through the ceramic oxide as well as across the oxide/polymer interface. Here we use two Li+-insulating oxides (fluorite Gd0.1Ce0.9O1.95 and perovskite La0.8Sr0.2Ga0.8-Mg0.2O2.55) with a high concentration of oxygen vacancies to demonstrate two oxide/poly(ethylene oxide) (PEO)-based polymer composite electrolytes, each with a Li+ conductivity above 10−4 Scm−1 at 30°C. Li solid-state NMR results show an increase in Li+ ions (>10%) occupying the more mobile A2 environment in the composite electrolytes. This increase in A2-site occupancy originates from the strong interaction between the O2− of Li-salt anion and the surface oxygen vacancies of each oxide and contributes to the more facile Li+ transport. All-solid-state Li-metal cells with these composite electrolytes demonstrate a small interfacial resistance with good cycling performance at 35°C. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

关键词： Ethylene

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