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Graphene: Confining Cation Injection to Enhance CBRAM Performance by Nanopore Graphene Layer (Small 35/2017)

Small 2017年第35期13卷

作者： Xiaolong Zhao Sen Liu Jiebin Niu Lei Liao Qi Liu Xiangheng Xiao Hangbing Lv Shibing Long Writam Banerjee Wenqing Li Shuyao Si Ming Liu Key Laboratory of Microelectronic Devices and Integrated Technology Institute of Microelectronics Chinese Academy of Sciences Beijing 100029 China Department of Physics Hubei Nuclear Solid Physics Key Laboratory and Center for Ion Beam Application Wuhan University Wuhan 430072 China Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing 210009 China

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Multicolor Zinc(II)-Coordinated Hydrazone-Based Bistable Photoswitches for Rewritable Transparent Luminescent Labels

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Angewandte Chemie 2022年第27期134卷

作者： Prof. Yun Ma Jiandong Shen Jufu Zhao Jiangang Li Shanying Liu Chenyuan Liu Juan Wei Prof. Shujuan Liu Prof. Qiang Zhao State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials (IAM) & Institute of Flexible Electronics (Future Technology) Nanjing University of Posts and Telecommunications (NUPT) Nanjing 210023 China College of Electronic and Optical Engineering and Microelectronics & College of Flexible Electronics (Future Technology) Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices Nanjing University of Posts and Telecommunications (NUPT) Nanjing 210023 P. R. China

Repeatable printing of invisible multicolor luminescence patterns with long retention times on transparent substrates is of significant importance, but it remains a formidable challenge. Here, two novel hydrazone-based on/off fluorescent photoswitches with decent emission quantum efficiencies, good reversible photoisomerization properties, and extremely long thermal half-lives, were designed and synthesized. Excitingly, X-ray crystallography data of both Z and E isomers of one hydrazone-based photoswitch were obtained. Multiple emission colors of blue, cyan, green, yellow, and orange can be obtained readily for these two photoswitches upon coordination with various zinc salts. Moreover, the photo-controlled rewritable printing of invisible multicolor images with high resolution was achieved by using these photoswitches. Importantly, the legibility of the printed patterns can last at least over 3 months without detectable emission intensity loss under ambient conditions.

关键词： Anti-Counterfeiting Multicolor Photoswitches Rewritable Printing Transparent Luminescent Tags

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Dual-emissive Iridium(III) Complexes as Phosphorescent Probes with Orthogonal Responses to Analyte Binding and Oxygen Quenching

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Angewandte Chemie 2023年第37期135卷

作者： Rongji Zhu Peiling Dai Jun Yang Jie Zhou Jin Zhang Prof. Kenneth Yin Zhang Prof. Yonghua Li Prof. Shujuan Liu Prof. Kenneth Kam-Wing Lo Prof. Qiang Zhao State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials (IAM) Nanjing University of Posts and Telecommunications Nanjing 210023 China Department of Chemistry City University of Hong Kong Hong Kong China College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology) Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices Nanjing University of Posts and Telecommunications Nanjing 210023 China

Phosphorescent probes often show sensitive response toward analytes at a specific wavelength. However, oxygen quenching usually occurs at the same wavelength and thus hinders the accurate detection of analytes. In this study, we have developed dual-emissive iridium(III) complexes that exhibit phosphorescence responses to copper(II) ions at a wavelength distinct from that where oxygen quenching occurs. The complexes displayed colorimetric phosphorescence response in aqueous solutions under different copper(II) and oxygen conditions. In cellular imaging, variation in oxygen concentration over a large range from 5 % to 80 % can modulate the intensity and lifetime of green phosphorescence without affecting the response of red phosphorescence toward intracellular copper(II) ions.

关键词： Bioimaging Dual-Emission Iridium Phosphorescence Probes

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Programmable Persistent Room Temperature Phosphorescence Switches through Wavelength-Selective Photoactivation

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Angewandte Chemie 2024年第4期137卷

作者： Yuchang Wang Aiwen Shao Jiangang Li Dr. Juan Wei Kuanjian Wei Prof. Shujuan Liu Prof. Yun Ma Prof. Qiang Zhao State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials (IAM) & Institute of Flexible Electronics (Future Technology) Nanjing University of Posts and Telecommunications (NUPT) 9 Wenyuan Road Nanjing 210023 P. R. China College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology) Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices Nanjing University of Posts and Telecommunications (NUPT) 9 Wenyuan Road Nanjing 210023 P. R. China

Controlling multicolor persistent room-temperature phosphorescence (RTP) through photoirradiation holds fundamental significance but remains a significant challenge. In this study, we engineered a wavelength-selective photoresponsive system utilizing the Förster resonance energy transfer strategy. This system integrates a photoactivated long-lived luminescent material as the energy donor with a fluorescent photoswitch as the energy acceptor, facilitating programmable persistent luminescence switches. Distinct afterglow color states, such as initial nonemissive, green, yellow, and orange, were achieved through irradiation at 400 nm, 365 nm, and 254 nm, respectively. Based on this capability, we established an interacting network for multistate afterglow color switching among these four emissive states. In addition, we demonstrate the potential of this wavelength-selective photoresponsive system in the photo-controlled rewritable printing of multicolor afterglow images on a single thin film. This work represents a substantial step towards the fabrication of sophisticated wavelength-selective photoresponsive systems, potentially revolutionizing applications in optical data storage, security labeling, and smart displays by enabling precise control over photoresponsive behaviors under various photoirradiation wavelengths.

关键词： Förster resonance energy transfer photoswitch Room temperature phosphorescence Triplet-triplet energy transfer Wavelength-selective photoactivation

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Unprecedented POSS-Linked 3D Covalent Organic Frameworks with 2-Fold Interpenetrated scu or sqc Topology Regulated by Porphyrin Center for Photocatalytic CO2Reduction

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Angewandte Chemie 2024年第26期136卷

作者： Ying Gao Senzhi Li Dr. Lei Gong Dr. Jing Li Prof. Dongdong Qi Prof. Naifang Liu Prof. Yongzhong Bian Prof. Jianzhuang Jiang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials Department of Chemistry and Chemical Engineering School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing 100083 China National University of Singapore (Suzhou) Research Institute 377 Lin Quan Street Suzhou Industrial Park Suzhou Jiangsu 215123 China Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China Daxing Research Institute Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Beijing 100083 China

The synthesis and characterization of porphyrin center regulated three-dimensional covalent organic frameworks (COFs) with 2-fold interpenetrated scu or sqc topology have been investigated. These COFs exhibit unique structural features and properties, making them promising candidates for photocatalytic applications in CO 2 reduction and artemisinin synthesis. The porphyrin center serves as an anchor for metal ions, allowing precise control over structures and functions of the frameworks. Furthermore, the metal coordination within the framework imparts desirable catalytic properties, enabling their potential use in photocatalytic reactions. Overall, these porphyrin center regulated metal-controlled COFs offer exciting opportunities for the development of advanced materials with tailored functionalities.

关键词： 3D covalent organic frameworks reticular chemistry CO2 photoreduction artemisinin photosynthesis

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Volatile Perovskite Precursor Ink Enables Window Printing of Phase-Pure FAPbI3Perovskite Solar Cells and Modules in Ambient Atmosphere

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Angewandte Chemie 2023年第7期136卷

作者： Linhao Yuan Xining Chen Xianming Guo Shihao Huang Xiaoxiao Wu Yunxiu Shen Hao Gu Yujin Chen Guixiang Zeng Hans-Joachim Egelhaaf Christoph J. Brabec Fu Yang Yaowen Li Yongfang Li Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China School of Chemistry and Chemical Engineering Nanjing University Nanjing 210008 China Suzhou Sunflex New Energy Company Limited Suzhou 215100 China Kuang Yaming Honors School Nanjing University Nanjing 210023 China Institute of Materials for Electronics and Energy Technology (i-MEET) Friedrich-Alexander University Erlangen-Nürnberg Martensstrasse 7 91058 Erlangen Germany Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (HI ERN) Immerwahrstrasse 2 91058 Erlangen Germany Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University Suzhou 215123 Jiangsu P. R. China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Despite the great success of perovskite photovoltaics in terms of device efficiency and stability using laboratory-scale spin-coating methods, the demand for high-throughput and cost-effective solutions remains unresolved and rarely reported because of the complicated nature of perovskite crystallization. In this work, we propose a stable precursor ink design strategy to control the solvent volatilization and perovskite crystallization to enable the wide speed window printing (0.3 to 18.0 m/min) of phase-pure FAPbI 3 perovskite solar cells (pero-SCs) in ambient atmosphere. The FAPbI 3 perovskite precursor ink uses volatile acetonitrile (ACN) as the main solvent with DMF and DMSO as coordination additives is beneficial to improve the ink stability, inhibit the coffee rings, and the complicated intermediate FAPbI 3 phases, delivering high-quality pin-hole free and phase-pure FAPbI 3 perovskite films with large-scale uniformity. Ultimately, small-area FAPbI 3 pero-SCs (0.062 cm 2 ) and large-area modules (15.64 cm 2 ) achieved remarkable efficiencies of 24.32 % and 21.90 %, respectively, whereas the PCE of the devices can be maintained at 23.76 % when the printing speed increases to 18.0 m/min. Specifically, the unencapsulated device exhibits superior operational stability with T 90 >1350 h. This work represents a step towards the scalable, cost-effective manufacturing of perovskite photovoltaics with both high performance and high throughput.

关键词： Large-Area Printing Perovskite Solar Cells Solar Module Volatile Solvent Wide Speed Window

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Heteroatom Substitution Strategy Modulates Thermodynamics Towards Chemically Recyclable Polyesters and Monomeric Unit Sequence by Temperature Switching

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Angewandte Chemie 2024年第24期136卷

作者： Da Zhang Xin Wang Zhengbiao Zhang Nikos Hadjichristidis State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China State Key Laboratory of Radiation Medicine and Protection Soochow University Suzhou 215123 China Polymer Synthesis Laboratory KAUST Catalysis Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia Note: Prof. Nikos Hadjichristidis is an Honorary Visiting Professor at Soochow University.

In this paper, we proposed a heteroatom substitution strategy (HSS) in the δ -valerolactone (VL) system to modulate thermodynamics toward chemically recyclable polyesters. Three VL-based monomers containing different heteroatoms (M 1 (N), M 2 (S), and M 3 (O)), instead of C-5 carbon, were designed and synthesized to verify our proposed HSS. All three monomers undergo organocatalytic living/controlled ROP and controllable depolymerization. Impressively, the resulting P(M 1 ) achieved over 99 % monomer recovery under both mild solution depolymerization and high vacuum pyrolysis conditions without any side reactions, and the recycled monomers can be polymerized again forming new polymers. The systematic study of the relationship between heteroatom substitution and recyclability shows that introducing heteroatoms does change the thermodynamics of the monomers (Δ H p o , Δ S p o and T c values), thereby adjusting the polymerizability and depolymerizability. DFT calculations found that the introduction of heteroatoms adjusts the ring strain by changing the angular strain of the monomers, and the order of their angular strain (M 2 >M 1 >M 3 ) is consistent with the order of the experimentally obtained enthalpy change. Notably, the one-pot/one-step copolymerization of two of each of the three monomers enables the synthesis of sequence-controlled copolymers from gradient to random to block structures, by simply switching the copolymerization temperature.

关键词： heteroatom ring-opening polymerization chemically recyclable sequence-control polyesters

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Frontispiece: Fabricating Dual-Atom Iron Catalysts for Efficient Oxygen Evolution Reaction: A Heteroatom Modulator Approach

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Angewandte Chemie International Edition 2020年第37期59卷

作者： Dr. Yong-Sheng Wei Dr. Liming Sun Miao Wang Dr. Jinhua Hong Dr. Lianli Zou Hongwen Liu Dr. Yu Wang Dr. Mei Zhang Dr. Zheng Liu Prof. Yinwei Li Prof. Satoshi Horike Prof. Kazu Suenaga Prof. Qiang Xu AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL) National Institute of Advanced Industrial Science and Technology (AIST) Sakyo-ku Kyoto 606-8501 Japan Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China Nanomaterials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8565 Japan Innovative Functional Materials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 2266-98 Anagahora Shimoshidami Moriyamaku Nagoya Aichi 463-8560 Japan Laboratory of Quantum Materials Design and Application School of Physics and Electronic Engineering Jiangsu Normal University Xuzhou 221116 P. R. China Institute for Integrated Cell-Material Sciences (WPI-iCeMS) Institute for Advanced Study Kyoto University Sakyo-ku Kyoto 606-8501 Japan Research Institute of Electrochemical Energy National Institute of Advanced Industrial Science and Technology (AIST) Ikeda Osaka 563-8577 Japan

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Frontispiz: Fabricating Dual‐Atom Iron Catalysts for Efficient Oxygen Evolution Reaction: A Heteroatom Modulator Approach

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Angewandte Chemie 2020年第37期132卷

作者： Yong‐Sheng Wei Liming Sun Miao Wang Jinhua Hong Lianli Zou Hongwen Liu Yu Wang Mei Zhang Zheng Liu Yinwei Li Satoshi Horike Kazu Suenaga Qiang Xu AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL) National Institute of Advanced Industrial Science and Technology (AIST) Sakyo-ku Kyoto 606-8501 Japan Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China Nanomaterials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8565 Japan Innovative Functional Materials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 2266-98 Anagahora Shimoshidami Moriyamaku Nagoya Aichi 463-8560 Japan Laboratory of Quantum Materials Design and Application School of Physics and Electronic Engineering Jiangsu Normal University Xuzhou 221116 P. R. China Institute for Integrated Cell-Material Sciences (WPI-iCeMS) Institute for Advanced Study Kyoto University Sakyo-ku Kyoto 606-8501 Japan Research Institute of Electrochemical Energy National Institute of Advanced Industrial Science and Technology (AIST) Ikeda Osaka 563-8577 Japan

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Corrigendum to “Thickness dependent strain effect on ferromagnetic insulating properties of LaCoO 3 thin films” [Appl. Surf. Sci. 643 (2024) 158705]

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Applied Surface Science 2024年 647卷

作者： Hao Liu Yamei Wang Huan Zheng Shuhao Wang Run Zhao Lei Zhang Langsheng Ling Haiyan Wang Hao Yang Jiyu Fan Department of applied Physics and Key Laboratory of Aerospace Information Materials and Physics (NUAA) MIIT Nanjing University of Aeronautics and Astronautics Nanjing 211106 China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 China Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Mathematics and Physics Suzhou University of Science and Technology Suzhou 215009 China High Magnetic Field Laboratory Chinese Academy of Sciences Hefei 230031 China School of Materials Engineering Purdue University West Lafayette IN 47907 USA

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