Soft 2D nanoarchitectonics

Abstract

Nanoarchitectonics is a new paradigm to combine and unify nanotechnology with other sciences and technologies, such as supramolecular chemistry, self-assembly, self-organization, materials technology for manipulation of the size of material objects, and even biotechnology for hybridization with bio-components. The nanoarchitectonic concept leads to the synergistic combination of various methodologies in materials production, including atomic/molecularlevel control, self-organization, and field-controlled organization. The focus of this review is on soft 2D nanoarchitectonics. Scientific views on soft 2D nanomaterials are not fully established compared with those on rigid 2D materials. Here, we collect recent examples of 2D nanoarchitectonic constructions of functional materials and systems with soft components. These examples are selected according to the following three categories on the basis of 2D spatial density and motional freedom: (i) well-packed and oriented organic 2D materials with rational design of component molecules and device applications, (ii) well-defined assemblies with 2D porous structures as 2D network materials, and (iii) 2D control of molecular machines and receptors on the basis of certain motional freedom confined in two dimensions.

Nanosheets of an Organic Molecular Assembly from Aqueous Medium Exhibit High Solid‐State Emission and Anisotropic Charge‐Carrier Mobility

“…[1][2][3] These ultrathin, atomic, or sub-nanometer layers of 2D materials are in demand owing to their exceptional electronic, optical, thermal, and mechanical properties with high degree of anisotropy for applications in flexible optoelectronics, catalysis, bioimaging, and energy storage. [4][5][6] During the past two decades, supramolecular chemistry has been exploited for the creation of a variety of 0D, 1D, 2D, and 3D nanomaterials. [7][8][9][10][11][12][13][14][15] In most of the cases, spontaneous self-assembly of organic molecules leads to 1D structures, but preparation of the corresponding 2D sheets of a few layer thickness is a challenge.…”

Formation processes, size changes, and properties of nanosheets derived from exfoliation of soft layered inorganic–organic composites

“…[11][12][13][14][15][16][17][18][19] Anisotropic nanostructures exhibit characteristic properties different from those of bulk materials and isotropic morphologies. [20][21][22][23][24][25][26][27][28] Exfoliation is a general route to obtain nanosheets from precursor layered materials. However, exfoliation routes face a number of challenges, such as control of the size, improvement of the yield, and modication of the nanosheet surface.…”

Interfacial Synthesis of a Monolayered Fluorescent Two‐Dimensional Polymer through Dynamic Imine Chemistry

“…Several pioneering researches have been conducted by using different reactions such as Schiff base, [40,[43][44][45] [4 + 4] cycloaddition, [41,42,[46][47][48] and Glaser-Hay coupling reaction. [49][50][51] Among these reactions, dynamic imine chemistry at the air/water interface (Langmuir-Blodgett method) [40,44,52,53] has great potential for large-scale production of highly crystalline 2D polymers due to its dynamic self-healing process. In addition, with certain functional moieties embedded into the well-defined 2DPs, the resulting 2DPs materials can possess unique properties for specific application.…”