Exciton Migration and Amplified Quenching on Two-Dimensional Metal–Organic Layers

Cao, Lingyun; Lin, Zheng‐Zhe; Shi, Wenjie; Wang, Zi; Zhang, Cankun; Hu, Xuefu; Wang, Cheng; Lin, Wenbin

doi:10.1021/jacs.7b02470

Cited by 150 publications

(128 citation statements)

References 66 publications

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“…Bottom‐up approaches include modulated synthesis and interfacial synthesis. By adding acid, salt, or triethylamine as modulators during MOF growth, a MOF 2‐D secondary architecture can be obtained. Interfacial synthesis has also been investigated using liquid/liquid interfaces and gas/liquid interfaces (mainly the Langmuir–Blodgett method) .…”

Section: Mofs With Hierarchical Architecturesmentioning

confidence: 99%

Rising Up: Hierarchical Metal–Organic Frameworks in Experiments and Simulations

et al. 2019

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Controlled synthesis across several length scales, ranging from discrete molecular building blocks to size-and morphology-controlled nanoparticles to 2D sheets and thin films and finally to 3D architectures, is an advanced and highly active research field within both the metal-organic framework (MOF) domain and the overall material science community. Along with synthetic progress, theoretical simulations of MOF structures and properties have shown tremendous progress in both accuracy and system size. Further advancements in the field of hierarchically structured MOF materials will allow the optimization of their performance; however, this optimization requires a deep understanding of the different synthesis and processing techniques and an enhanced implementation of material modeling. Such modeling approaches will allow us to select and synthesize the highest-performing structures in a targeted rational manner. Here, recent progress in the synthesis of hierarchically structured MOFs and multiscale modeling and associated simulation techniques is presented, along with a brief overview of the challenges and future perspectives associated with a simulation-based approach toward the development of advanced hierarchically structured MOF materials. Hierarchical Architecturesand signal transduction. These molecular components are then organized into subcellular and cellular compartments or domains. These subcellular and cellular compartments are then structured into different organs and organ systems, which ultimately, at the highest level, constitute the entire organism. These organisms are then able to self-replicate and are themselves part of more complex ecosystems.Hierarchically organized synthetic materials also contain structural elements at more than one length scale. This structural hierarchy can strongly influence bulk material properties. Understanding the effects of hierarchical structure is essential for guiding the synthesis of new materials with properties that are tailored to specific applications. [2] The individual building blocks in a material, which are often grouped into different subdomains and domains, are usually regarded as structural elements in hierarchical materials. However, other features of materials, such as porosity or chemical composition, can also be organized hierarchically, which is crucial for optimizing specific properties, such as diffusion within a material or directional energy transfer. [3] The hierarchical order of a material may be defined as the number (n) of levels of scale within a specific structure. [2] As in natural systems, such as proteins, one can categorize structures at different length scales starting from the smallest length scale as primary structures, secondary structures, tertiary structures, and so on. [4] Metal-organic frameworks (MOFs) are a class of functional crystalline materials that has received increasing attention over the

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Section: Mofs With Hierarchical Architecturesmentioning

confidence: 99%

Rising Up: Hierarchical Metal–Organic Frameworks in Experiments and Simulations

et al. 2019

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“…[44][45][46][47][48][49][50][51][52][53][54] Rational design of 2D and 3D MOFs can provide excellent exciton transport, [45] a phenomenon that is most efficient for MOFs which contain chromophore-based ligands separated by 1-2 nm distances. [44][45][46][47][48][49][50][51][52][53][54] Rational design of 2D and 3D MOFs can provide excellent exciton transport, [45] a phenomenon that is most efficient for MOFs which contain chromophore-based ligands separated by 1-2 nm distances.…”

Section: Excitonsmentioning

confidence: 99%

“…The structure was extracted from crystallographic information file (CIF) [44]. The structure was extracted from crystallographic information file (CIF) [44].…”

mentioning

confidence: 99%

Metal–Organic Frameworks in Modern Physics: Highlights and Perspectives

et al. 2019

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Owing to the synergistic combination of a hybrid organic–inorganic nature and a chemically active porous structure, metal–organic frameworks have emerged as a new class of crystalline materials. The current trend in the chemical industry is to utilize such crystals as flexible hosting elements for applications as diverse as gas and energy storage, filtration, catalysis, and sensing. From the physical point of view, metal–organic frameworks are considered molecular crystals with hierarchical structures providing the structure‐related physical properties crucial for future applications of energy transfer, data processing and storage, high‐energy physics, and light manipulation. Here, the perspectives of metal–organic frameworks as a new family of functional materials in modern physics are discussed: from porous metals and superconductors, topological insulators, and classical and quantum memory elements, to optical superstructures, materials for particle physics, and even molecular scale mechanical metamaterials. Based on complementary properties of crystallinity, softness, organic–inorganic nature, and complex hierarchy, a description of how such artificial materials have extended their impact on applied physics to become the mainstream in material science is offered.

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“…Lin at al. have investigated the difference of exciton migration and fluorescence quenching efficiency between 2D MOF nanosheets and 3D bulk MOFs (Figure a) . They synthesized 2D Hf‐based MOF nanosheets with the thickness of 2±0.2 nm and 3D Hf‐based MOF from similar hafnium SBUs and the same ligands with the nanosheets.…”

Section: Sensing Platformsmentioning

confidence: 99%

“…have investigated the difference of exciton migration and fluorescenceq uenching efficiency between 2D MOF nanosheets and3 Db ulk MOFs (Figure 5a). [106] They synthesized 2D Hf-based MOF nanosheets with the thickness of 2 AE 0.2 nm and 3D Hf-based MOF from similarh afnium SBUs and the same ligands with the nanosheets. They found that althought he exciton migrations in 2D materials is slower and the total energy transfer in the 2D MOF nanosheets is lower than 3D bulk MOFs, the 2D MOF nanosheets exhibits much more efficient energy transfer than the bulk one, leading to the amplifiedf luorescenceq uenching effect (Figure 5b).…”

Section: Sensing Platformsmentioning

confidence: 99%

Two‐Dimensional Metal‐Organic Framework Nanosheets: A Rapidly Growing Class of Versatile Nanomaterials for Gas Separation, MALDI‐TOF Matrix and Biomimetic Applications

Yang

2018

Chemistry A European J

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Two-dimensional (2D) metal-organic framework (MOF) nanosheets, as an emerging type of 2D materials, attract numerous attention due to their unique properties. First, the ultrathin thickness and nanoscale of the materials results in homogeneous dispersion in aqueous solution, giving the materials more opportunities to be utilized in solution chemistry, especially beneficial to the biomimetic catalysis and bio-related analytical applications. Second, the large surface area and accessible active sites of the MOF nanosheets are favorable to the binding between materials and the substrate, leading to their superior performance in catalysis, sensing and enzyme inhibition. Third, the suitable sizes of nanopores on the 2D MOF nanosheets give them the abilities to act as membranes for highly selective and energy-saving gas separation. This minireview covers the synthesis, characterization as well as bio-related and separation applications of 2D MOF nanosheets.

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Exciton Migration and Amplified Quenching on Two-Dimensional Metal–Organic Layers

Cited by 150 publications

References 66 publications

Rising Up: Hierarchical Metal–Organic Frameworks in Experiments and Simulations

Rising Up: Hierarchical Metal–Organic Frameworks in Experiments and Simulations

Metal–Organic Frameworks in Modern Physics: Highlights and Perspectives

Two‐Dimensional Metal‐Organic Framework Nanosheets: A Rapidly Growing Class of Versatile Nanomaterials for Gas Separation, MALDI‐TOF Matrix and Biomimetic Applications

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