检索结果-内蒙古大学图书馆

Designing a Perylene Diimide/Fullerene Hybrid as Effective Electron Transporting Material in Inverted Perovskite Solar Cells with Enhanced Efficiency and Stability

引用

Angewandte Chemie 2019年第25期131卷

作者： Zhenghui Luo Fei Wu Teng Zhang Xuan Zeng Yiqun Xiao Tao Liu Cheng Zhong Xinhui Lu Linna Zhu Shihe Yang Chuluo Yang Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Department of Chemistry Wuhan University Wuhan 430072 P. R. China Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and Engineering Shenzhen University Shenzhen 518060 P. R. China Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy Faculty of Materials & Energy Southwest University Chongqing 400715 P. R. China Nano Science and Technology Program Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong P. R. China Department of Physics Chinese University of Hong Kong New Territories Hong Kong P. R. China Guangdong Key Lab of Nano-Micro Material Research School of Chemical Biology and Biotechnology Shenzhen Graduate School Peking University Xili University Town Shenzhen 518055 Guangdong P. R.China

Electron transport materials (ETM) play an important role in the improvement of efficiency and stability for inverted perovskite solar cells (PSCs). This work reports an efficient ETM, named PDI‐C 60 , by the combination of perylene diimide (PDI) and fullerene. Compared to the traditional PCBM, this strategy endows PDI‐C 60 with slightly shallower energy level and higher electron mobility. As a result, the device based on PDI‐C 60 as electron transport layer (ETL) achieves high power conversion efficiency (PCE) of 18.6 %, which is significantly higher than those of the control devices of PCBM (16.6 %) and PDI (13.8 %). The high PCE of the PDI‐C 60 ‐based device can be attributed to the more matching energy level with the perovskite, more efficient charge extraction, transport, and reduced recombination rate. To the best of our knowledge, the PCE of 18.6 % is the highest value in the PSCs using PDI derivatives as ETLs. Moreover, the device with PDI‐C 60 as ETL exhibits better device stability due to the stronger hydrophobic properties of PDI‐C 60 . The strategy using the PDI/fullerene hybrid provides insights for future molecular design of the efficient ETM for the inverted PSCs.

关键词： Elektronentransportmaterial Fullerene Perowskit-Solarzellen Perylendiimide Stromwandlungswirkungsgrad

来源：评论

学校读者我要写书评

暂无评论

Carbon nanodots prepared from dopamine and trisodium citrate as an effective fluorescent sensing platform for the label-free detection of ferric ions 20

Carbon nanodots prepared from dopamine and trisodium citrate...

引用

20th International Conference on Miniaturized Systems for Chemistry and Life sciences, MicroTAS 2016

作者： Wu, W.C. Lin, S.C. Chen, F.R. Chang, H.T. Tseng, F.G. Department of Engineering and System Science National Tsing Hua University Taiwan Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica Taiwan Department of Chemistry National Taiwan University Taiwan

ISBN: (纸本)9780979806490

In this study, dopamine passivated carbon nanodots (C-dots) were fabricated to detect ferric ions (Fe3+) sensitivity and selectivity. Photoluminescence (PL) intensity of C-dots was turned on after adding phenyl boric acid. Depending on the interesting PL property, we investigated a novel strategy for Fe3+detection. Comparing to the previous papers used complicated and tedious process to fabricate nanomaterial-based probes for Fe3+ sensing, the one-pot hydrothermal method spend only 2 h to prepare C-dots from dopamine and trisodium citrate. The limit of detection (LOD) is 5.8 nM, which is lower than these papers.

关键词： Photoluminescence

来源：评论

学校读者我要写书评

暂无评论

A unified theory of grain growth in polycrystalline materials

arXiv

引用

arXiv 2018年

作者： Hu, Jianfeng Wang, Xianhao Zhang, Junzhan Shen, Zhijian Luo, Jun Luo, Jian School of Materials Science and Engineering Shanghai University Shanghai200444 China Carl Zeiss Co. Shanghai 60 Meiyue road Shanghai200131 China Department of Materials and Environmental Chemistry Arrhenius Laboratory Stockholm University StockholmS-106 91 Sweden College of Materials and Mineral Resources Xi'an University of Architecture and Technology 13 Yanta Road Xi'an710055 China Materials Genome Institute Shanghai University Shanghai200444 China Department of Nano Engineering Program of Materials Science and Engineering University of California San Diego San diegoCA92093 United States

Grain growth is a ubiquitous and fundamental phenomenon observed in the cellular structures with the grain assembly separated by a network of grain boundaries, including metals and ceramics. However, the underlying mechanism of grain growth has remained ambiguous for more than 60 years. The models for grain growth, based on the classically linear relationship between the grain boundary migration and capillary driving force, generally predict normal grain growth. Quantitative model for abnormal grain growth is lacking despite decades of efforts. Here, we present a unified model to reveal quantitatively how grain growth evolves, which predicts the normal, abnormal and stagnant behaviors of grain growth in polycrystalline materials. Our model indicates that the relationship between grain boundary migration and capillary driving force is generally nonlinear, but will switch to be the classically linear relationship in a specific case. Furthermore, the grain growth experiments observed in polycrystalline SrTiO3 demonstrates the validity of the unified model. Our study provides a unified, quantitative model to understand and predict grain growth in polycrystalline materials, and thus offers helpful guides for the microstructural design to optimize the properties of polycrystalline materials. © 2018, CC BY.

关键词： Grain growth

来源：评论

学校读者我要写书评

暂无评论

The anomalous antiferromagnetic topological phase in pressurized SmB6

arXiv

引用

arXiv 2017年

作者： Chang, Kai-Wei Chen, Peng-Jen Department of Physics National Taiwan University Taipei10617 Taiwan Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica Taipei11529 Taiwan National Taiwan University Taipei10617 Taiwan Institute of Physics Academia Sinica Taipei11529 Taiwan

Z2 topology if they respect some specfic symmetry. Since the theoretical proposal, however, no materials have been found to host the antiferromagnetic topological (AFT) phase to date. Here, for the first time, we demonstrate that the topological Kondo insulator SmB6 can be an AFT system when pressurized to undergo an antiferromagnetic phase transition. In addition to propose the possible candidate for an AFT material, in this work we also illustrate the anomalous topological surface states of the AFT phase which has not been discussed before. Originating from the interplay between the topological properties and the antiferromagnetic surface magnetization, the topological surface states of the AFT phase behave differently as compared with those of a topological insulator. Besides, the AFT insulators are also found promising in the generation of tunable spin currents, which is an important application in spintronics. Copyright © 2017, The Authors. All rights reserved.

关键词： Antiferromagnetism

来源：评论

学校读者我要写书评

暂无评论

Microgels: SERS-Active-Charged Microgels for Size- and Charge-Selective Molecular Analysis of Complex Biological Samples (Small 40/2018)

引用

Small 2018年第40期14卷

作者： Dong Jae Kim Sung-Gyu Park Dong-Ho Kim Shin-Hyun Kim Department of Chemical and Biomolecular Engineering (BK21+ Program) Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 South Korea Advanced Nano-Surface Department Korea Institute of Materials Science (KIMS) Changwon Gyeongnam 51508 South Korea

来源：评论

学校读者我要写书评

暂无评论

Large-scale production of extracellular vesicles: Report on the “massivEVs” ISEV workshop

Journal of Extracellular Biology

引用

Journal of Extracellular Biology 2022年第10期1卷 e63页

作者： Paolini, Lucia Monguió-Tortajada, Marta Costa, Marta Antenucci, Fabio Barilani, Mario Clos-Sansalvador, Marta Andrade, André Cronemberger Driedonks, Tom A. P. Giancaterino, Sara Kronstadt, Stephanie M. Mizenko, Rachel R. Nawaz, Muhammad Osteikoetxea, Xabier Pereira, Carla Shrivastava, Surya Boysen, Anders Toftegaard van de Wakker, Simonides Immanuel van Herwijnen, Martijn J. C. Wang, Xiaoqin Watson, Dionysios C. Gimona, Mario Kaparakis-Liaskos, Maria Konstantinov, Konstantin Lim, Sai Kiang Meisner-Kober, Nicole Stork, Michiel Nejsum, Peter Radeghieri, Annalisa Rohde, Eva Touzet, Nicolas Wauben, Marca H. M. Witwer, Kenneth W. Bongiovanni, Antonella Bergese, Paolo Department of Molecular and Translational Medicine University of Brescia Brescia Italy Center for Colloid and Surface Science (CSGI) Department of Chemistry University of Florence Sesto Fiorentino (FI) Italy Department of Medical and Surgical Specialties Radiological Sciences and Public Health University of Brescia Brescia Italy CREC Research Program Health Science Research Institute Germans Trias i Pujol (IGTP) Badalona Spain Heart Institute (iCor) Cardiology Department Germans Trias i Pujol University Hospital Badalona Spain iBET Instituto de Biologia Experimental e Tecnológica Oeiras Portugal Instituto de Tecnologia Química e Biológica António Xavier Universidade Nova de Lisboa Oeiras Portugal Department of Veterinary and Animal Sciences University of Copenhagen Copenhagen Denmark Laboratory of Regenerative Medicine ‒ Cell Factory Department of Transfusion Medicine and Hematology Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milano Italy REMAR-IGTP Group Germans Trias i Pujol Research Institute (IGTP) & Nephrology Department University Hospital Germans Trias i Pujol (HUGTiP) Catalonia Badalona (Barcelona) Spain Department of Cell Biology Physiology and Immunology Universitat Autònoma de Barcelona (UAB) Bellaterra Spain Experimental and Clinical Cell Therapy Institute (ExCT) Spinal Cord Injury and Tissue Regeneration Center Paracelsus Medical University Salzburg Austria CDL Research University Medical Center Utrecht Utrecht University Utrecht Netherlands Department of Molecular and Comparative Pathology Johns Hopkins School of Medicine Baltimore MD United States Department of Civil Chemical Environmental and Materials Engineering Alma Mater Studiorum University of Bologna Bologna Italy Fischell Department of Bioengineering University of Maryland College Park MD United States Department of Biomedical Engineering University of California Davis CA United States Department of Rheumatology and Inflammation Research Institute of Medicine

Extracellular vesicles (EVs) large-scale production is a crucial point for the translation of EVs from discovery to application of EV-based products. In October 2021, the International Society for Extracellular Vesicles (ISEV), along with support by the FET-OPEN projects, “The Extracellular Vesicle Foundry” (evFOUNDRY) and “Extracellular vesicles from a natural source for tailor-made nanomaterials” (VES4US), organized a workshop entitled “massivEVs” to discuss the potential challenges for translation of EV-based products. This report gives an overview of the topics discussed during “massivEVs”, the most important points raised, and the points of consensus reached after discussion among academia and industry representatives. Overall, the review of the existing EV manufacturing, upscaling challenges and directions for their resolution highlighted in the workshop painted an optimistic future for the expanding EV field. © 2022 The Authors. Journal of Extracellular Biology published by Wiley Periodicals, LLC on behalf of the International Society for Extracellular Vesicles.

关键词： EV-based products extracellular vesicles ISEV workshop large-scale production manufacturing processing regulatory issues

来源：评论

学校读者我要写书评

暂无评论

Electrical tuning of the polarization state of light using graphene-integrated anisotropic metasurfaces

Electrical tuning of the polarization state of light using g...

引用

作者： Dutta-Gupta, Shourya Dabidian, Nima Kholmanov, Iskandar Belkin, Mikhail A. Shvets, Gennady Department of Physics Center for Nano and Molecular Science and Technology University of Texas at Austin AustinTX78712 United States Department of Mechanical Engineering Materials Science Program University of Texas at Austin AustinTX78712 United States Department of Electrical and Computer Engineering Microelectronics Research Center University of Texas at Austin 10100 Burnet Road AustinTX78758 United States CNR-INO Sensor Lab University of Brescia via Branze 45 Brescia25123 Italy School of Applied and Engineering Physics Cornell University IthacaNY14853 United States

Plasmonic metasurfaces have been employed for moulding the flow of transmitted and reflected light, thereby enabling numerous applications that benefit from their ultra-thin sub-wavelength format. Their appeal is further enhanced by the incorporation of active electro-optic elements, paving the way for dynamic control of light's properties. In this paper, we realize a dynamic polarization state generator using a graphene-integrated anisotropic metasurface (GIAM) that converts the linear polarization of the incident light into an elliptical one. This is accomplished by using an anisotropic metasurface with two principal polarization axes, one of which possesses a Fano-type resonance. A gate-controlled single-layer graphene integrated with the metasurface was employed as an electro-optic element controlling the phase and intensity of light polarized along the resonant axis of the GIAM. When the incident light is polarized at an angle to the resonant axis of the metasurface, the ellipticity of the reflected light can be dynamically controlled by the application of a gate voltage. Thus accomplished dynamic polarization control is experimentally demonstrated and characterized bymeasuring the Stokes polarization parameters. Large changes of the ellipticity and the tilt angle of the polarization ellipse are observed. Our measurements show that the tilt angle can be changed from positive values through zero to negative values while keeping the ellipticity constant, potentially paving the way to rapid ellipsometry and other characterization techniques requiring fast polarization shifting. This article is part of the themed issue 'New horizons for nanophotonics'. © 2017 The Author(s) Published by the Royal Society. All rights reserved.

关键词： Graphene

来源：评论

学校读者我要写书评

暂无评论

Low temperature catalyst for VOC abatement

Low temperature catalyst for VOC abatement

引用

252nd ACS National Meeting and Exposition: Chemistry of the People, by the People, for the People

作者： Wang, Qingyue Chen, Hao Luk, Long Ting Han, Wei Yeung, King Lun Chemical and Biomolecular Engineering Hong Kong University of Science and Technology Hong Kong Hong Kong Division of Environment Hong Kong University of Science and Technology Hong Kong Hong Kong Nano Science and Technology Program Hong Kong University of Science and Technology Hong Kong Hong Kong

Volatile organic compounds (VOCs) are important indoor air pollutant that can have adverse impact on the health of the occupants. Recent studies reported more than 300 organic chemical compounds are found indoor at more than 1 ppb level. Many of these compounds belong to the family endocrinedisrupting compounds and others are suspected carcinogens. This work investigate a new catalyst for deep oxidations of VOCs at room to near room temperature conditions. The highly dispersed gold catalyst was supported on mixed oxides of vanadium, titanium and cerium. The composition, phase and crystallinity of the mixed oxides support affect the size, dispersion and anchorage of the gold catalyst. Cerium oxide promotes wetting of the gold particles, while vanadium oxide stabilizes the formed particles. The optimized catalyst can attain high toluene conversion at 50 C making it an ideal catalyst for indoor VOC abatement.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Author Correction: Interplay of protein corona and immune cells controls blood residency of liposomes

引用

Nature communications 2020年第1期11卷 1697页

作者： Francesca Giulimondi Luca Digiacomo Daniela Pozzi Sara Palchetti Elisabetta Vulpis Anna Laura Capriotti Riccardo Zenezini Chiozzi Aldo Laganà Heinz Amenitsch Laura Masuelli Giovanna Peruzzi Morteza Mahmoudi Isabella Screpanti Alessandra Zingoni Giulio Caracciolo Department of Molecular Medicine Sapienza University of Rome Viale Regina Elena 291 00161 Rome Italy. Istituto Italiano di Tecnologia Center for Life Nano Science@Sapienza Viale Regina Elena 291 00161 Rome Italy. Department of Chemistry Sapienza University of Rome P.le Aldo Moro 5 00185 Rome Italy. Institute of inorganic Chemistry Graz University of Technology Stremayerg 6/IV 8010 Graz Austria. Department of Experimental Medicine Sapienza University of Rome Viale Regina Elena 324 00161 Rome Italy. Precision Health Program Michigan State University East Lansing MI 48823 USA. mahmou22@msu.edu. Department of Molecular Medicine Sapienza University of Rome Viale Regina Elena 291 00161 Rome Italy. giulio.caracciolo@uniroma1.it.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Photovoltaic Devices: High Performance Roll‐to‐Roll Produced Fullerene‐Free Organic Photovoltaic Devices via Temperature‐Controlled Slot Die Coating (Adv. Funct. Mater. 6/2019)

引用

Advanced Functional Materials 2019年第6期29卷

作者： Seok‐In Na You‐Hyun Seo Yoon‐Chae Nah Seok‐Soon Kim Hyojung Heo Jueng‐Eun Kim Nicholas Rolston Reinhold H. Dauskardt Mei Gao Youngu Lee Doojin Vak CSIRO Manufacturing Bag 10 Clayton South Victoria 3168 Australia Professional Graduate School of Flexible and Printable Electronics and Polymer Materials Fusion Research Center Chonbuk National University Deokjin‐dong 664‐14 Jeonju‐si Jeollabuk‐do 561‐756 Republic of Korea Interdisciplinary Program in Creative Engineering School of Energy Materials and Chemical Engineering Korea University of Technology and Education Cheonan 31253 Korea Department of Nano & Chemical Engineering Kunsan National University 290–2 Miryong‐dong Gunsan‐si Jeollabuk‐do 573‐701 Republic of Korea Department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology (DGIST) Daegu 42988 Korea Department of Applied Physics Stanford University Stanford CA 94305 USA Department of Materials Science and Engineering Stanford University Stanford CA 94305 USA

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：