Molecular motions and chemical reactions occurring in constrained space play key roles in many catalysis and energy storage applications. However, its understanding has been impeded by difficulty in detection and lack of reliable model systems. In this work, we report geometric and chemical manipulation of O2 diffusion and ensuing O2-mediated charge transfer (CT) that occur in the 2D space between single-layer transition metal dichalcogenides (TMDs) and dielectric substrates. As a sensitive real-time wide-field imaging signal, charge-density-dependent photoluminescence (PL) from TMDs was used. The two sequential processes inducing spatiotemporal PL change could be drastically accelerated by increasing the interfacial gap size or introducing artificial defects serving as CT reaction centers. We also show that widely varying CT kinetics of four TMDs are rate-determined by the degree of hydration required for the reactions. The reported findings will be instrumental in designing novel functional nanostructures and devices.
Charge-transfer interfaces between metal and redox arylamine molecular films: As probed with anode interfacial engineering approach in single-layer organic diodes
Interfacial-Redox-Induced Tuning of Superconductivity in YBa$_{2}$Cu$_{3}$O$_{7-δ}$
用于改变吸气剂/氧化物异质结构中的离子分布的固态离子方法提供了控制材料性质的激发电势。在这里,我们报告了一个简单的,可扩展的方法,允许通过化学驱动的离子迁移机制,在最佳掺杂的YBa $_{2}$ Cu $_{3}$ O $_{7-δ}$(YBCO)薄膜的超导转变的总控制。使用薄的Gd覆盖层上沉积到100 nm厚的外延YBCO薄膜,氧被发现从深层内的YBCO浸出。观察到超导转变的逐步减少,对于足够厚的Gd层可能完全抑制。这些影响来自氧化还原驱动的电子掺杂和由于氧迁移和耗尽的YBCO微结构的修改的综合影响。这项工作证明了一个有效的离子控制氧化物的超导电性,界面诱导效应,以及进入准体制度,开辟了电场操纵的可能性。
Revealing the interfacial kinetic mechanisms in high-entropy doped Na$_3$V$_2$(PO$_4$)$_3$ through electrochemical investigation and distribution of relaxation times
Interfacial Synergy in Ag-Doped CuO-AgCl-g-C3N4 Composites for Efficient Charge Separation and Low-power Methylene Blue Degradation
Indian Institute of Technology Indore(印度印多尔理工学院);Heriot-Watt University(赫瑞-瓦特大学);Ariel University(阿里埃勒大学);King Fahd University of Petroleum and Minerals(法赫德国王石油与矿物大学)
Superconductivity at Pd/Bi$_2$Se$_3$ Interfaces Due to Self-Formed PdBiSe Interlayers
Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University(天津大学理学院物理系联合量子研究中心);Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Department of Physics, Tianjin University(天津大学物理系低维材料物理与制备技术天津市重点实验室);Beijing Advanced Innovation Center for Intelligent Robots and Systems, School of Medical Technology, Beijing Institute of Technology(北京理工大学医疗技术学院北京市智能机器人系统先进创新中心);Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology(北京理工大学物理学院光电量子架构与测量教育部重点实验室量子物理中心)
Strain-Mediated Lattice Reconstruction Enhances Ferromagnetism in Cr2Ge2Te6/WTe2 van der Waals Heterobilayers
Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology (BIST)(加泰罗尼亚纳米科学和纳米技术研究所(ICN2),西班牙高等科学研究委员会(CSIC)和巴塞罗那科学与技术研究所(BIST));Universitat Autònoma de Barcelona(巴塞罗那自治大学);Institut de Ciència de Materials de Barcelona, ICMAB-CSIC(巴塞罗那材料科学研究所,西班牙高等科学研究委员会(ICMAB-CSIC));Research Center for Electronic and Optical Materials, National Institute for Materials Science(电子与光学材料研究中心,日本物质材料研究机构);Research Center for Materials Nanoarchitectonics, National Institute for Materials Science(材料纳米结构研究中心,日本物质材料研究机构);Institute of Optical Materials and Technologies, Bulgarian Academy of Science(保加利亚科学院光学材料与技术研究所);Institute of Solid State Physics, Bulgarian Academy of Sciences(保加利亚科学院固体物理研究所);Quantum Innovation Centre (Q. InC), Agency for Science Technology and Research (A*STAR)(量子创新中心(Q. InC),新加坡科技研究局(A*STAR))