Emergent properties in supercrystals of atomically precise nanoclusters and colloidal nanocrystals

Sugi, Korath Shivan; Maier, Andre; Scheele, Marcus

doi:10.1039/d2cc00778a

Cited by 10 publications

(7 citation statements)

References 263 publications

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“…[ 130 ] In contrast to the traditional metal ions nodes, porous structure 1DMAC with larger porosity can more sensitively respond to the objects. Besides, Cd clusters, [ 131 ] Pt clusters, [ 132 ] Au clusters, [ 133 ] Zr clusters, [ 134 ] and so on are used as coordination nodes with AIEgens linkers.…”

Section: Mofs‐based Aie Materialsmentioning

confidence: 99%

Inorganic‐Based Aggregation‐Induced Luminescent Materials: Recent Advances and Perspectives

Zhang,

Huang,

Miao

et al. 2023

Small Structures

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Luminogens with aggregation‐induced emission properties (AIEgens), as a novel and attractive fluorescent molecule, have been used in various fields, such as detection, imaging, and disease treatment, which can overcome the traditional aggregation‐caused quenching of organic fluorescent molecules. Nevertheless, AIEgens still have the problems of water solubility and fluorescence stability in practical applications. Aiming for improving the AIEgens’ performance and promoting the development of diverse applications of AIEgens, it is an available strategy to bind AIEgens to those inorganic materials with abundant variety, easy synthesis, and a unique rigid pore structure. The constructed inorganic‐based AIE materials not only inherit the unique luminescence characteristics of AIEgens, but also retain the biocompatibility and degradability of inorganic materials, endowing AIEgens with more attractive versatility. Herein, the up‐to‐date researches of several representative inorganic‐based AIE materials are introduced, with emphasis on their structure design, synthesis strategy, regulation of fluorescence properties of AIE, and their application in the biological field. Finally, the current situation, challenges, and future development potential of inorganic‐based AIE materials are discussed and prospected.

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Section: Mofs‐based Aie Materialsmentioning

confidence: 99%

Inorganic‐Based Aggregation‐Induced Luminescent Materials: Recent Advances and Perspectives

Zhang,

Huang,

Miao

et al. 2023

Small Structures

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“…The self-assembly of ligand-protected nanoparticles (NPs) into colloidal superlattices is attracting great interest. − A wide range of supramolecular architectures can be obtained by guiding the self-assembly of the NPs toward various types of crystalline or quasicrystalline aggregates. ,− Crystalline NP superstructures have been attained, for example, via rational design of NP shape, anisotropy, surface chemistry, − or by manipulating the conditions of the self-assembly process. ,, Another effective way to control the formation of ordered colloidal superlattices is to use molecular binding units capable of driving NP self-assembly. As an example, the specific recognition between complementary DNA strands grafted onto the NP surface has been used to assemble, with great precision and fidelity, colloidal NP superlattices with various symmetries and fascinating properties. ,− Electrostatic interactions have been also widely employed to drive the self-assembly of colloidal particles.…”

Section: Introductionmentioning

confidence: 99%

“… 1 − 12 A wide range of supramolecular architectures can be obtained by guiding the self-assembly of the NPs toward various types of crystalline or quasicrystalline aggregates. 1 , 13 − 23 Crystalline NP superstructures have been attained, for example, via rational design of NP shape, anisotropy, surface chemistry, 24 − 29 or by manipulating the conditions of the self-assembly process. 10 , 30 , 31 Another effective way to control the formation of ordered colloidal superlattices is to use molecular binding units capable of driving NP self-assembly.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular Semiconductivity through Emerging Ionic Gates in Ion–Nanoparticle Superlattices

et al. 2022

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The self-assembly of nanoparticles driven by small molecules or ions may produce colloidal superlattices with features and properties reminiscent of those of metals or semiconductors. However, to what extent the properties of such supramolecular crystals actually resemble those of atomic materials often remains unclear. Here, we present coarse-grained molecular simulations explicitly demonstrating how a behavior evocative of that of semiconductors may emerge in a colloidal superlattice. As a case study, we focus on gold nanoparticles bearing positively charged groups that self-assemble into FCC crystals via mediation by citrate counterions. In silico ohmic experiments show how the dynamically diverse behavior of the ions in different superlattice domains allows the opening of conductive ionic gates above certain levels of applied electric fields. The observed binary conductive/nonconductive behavior is reminiscent of that of conventional semiconductors, while, at a supramolecular level, crossing the “band gap” requires a sufficient electrostatic stimulus to break the intermolecular interactions and make ions diffuse throughout the superlattice’s cavities.

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“…The formation of ordered structures has an influence on the resulting physical properties of the film. − However, one of the limiting factors for the formation of long-range order is the polydispersity of the used nanoparticles. A non-zero width of the nanoparticles’ size distribution precludes the existence of long-range order in the assembled film .…”

Section: Introductionmentioning

confidence: 99%

Multilayer Langmuir Film of Monodisperse Au Nanoclusters: Unusual Growth via Bilayers

et al. 2022

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The assembly of nanomaterials into thin films is an important area in the nanofabrication of novel devices. The monodispersity of nanoparticles plays an essential role in the resulting quality of the assembled mono-and multilayers. Larger polydispersity leads to smaller lateral correlation lengths and smaller domains of aligned nanoparticles, thus resulting in more point and line defects. Perfectly monodisperse nanoparticles should therefore minimize the number of defects in the assembled films. Despite tremendous progress in reducing the polydispersity of nanoparticles, there has been limited research on the assembly of thin films out of perfectly monodisperse nanoclusters. Here, we show a formation of Langmuir films using perfectly monodisperse gold nanoclusters with composition Au 32 ( n Bu 3 P) 12 Cl 8 exhibiting a diameter of 1.8 nm. Using both in situ and ex situ small-angle X-ray scattering, we show that the monolayer formed on a Langmuir− Blodgett trough exhibits long-range order. Moreover, after compressing the monolayer, we found that the stress accumulated prior to the monolayer collapse triggers a transition to a short-range order not previously reported. If such monolayer is compressed further, the second layer is not formed as in the case of standard nanoparticles. Instead, a growth of islands by an odd number of layers is observed, leading to a thin film with a structure consisting of two different orientations of the hexagonal lattice. Such anomalous behavior may have implications for the possibilities of thin-film formation.

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Emergent properties in supercrystals of atomically precise nanoclusters and colloidal nanocrystals

Abstract: We provide a comprehensive account of the optical, electrical and mechanical properties that result from the self-assembly of colloidal nanocrystals or atomically precise nanoclusters into crystalline arrays with long-range order....

Cited by 10 publications

References 263 publications

Inorganic‐Based Aggregation‐Induced Luminescent Materials: Recent Advances and Perspectives

Inorganic‐Based Aggregation‐Induced Luminescent Materials: Recent Advances and Perspectives

Supramolecular Semiconductivity through Emerging Ionic Gates in Ion–Nanoparticle Superlattices

Multilayer Langmuir Film of Monodisperse Au Nanoclusters: Unusual Growth via Bilayers

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