Recent developments in the construction of metallacycle/metallacage-cored supramolecular polymers via hierarchical self-assembly

2019 ◽  
Vol 55 (56) ◽  
pp. 8036-8059 ◽  
Author(s):  
Bo Li ◽  
Tian He ◽  
Yiqi Fan ◽  
Xinchao Yuan ◽  
Huayu Qiu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Recent Progress ◽  
Supramolecular Polymers ◽  
Feature Article ◽  
Light Emitting ◽  
Recent Developments ◽  
Potential Applications ◽  
Bio Imaging

This feature article summarized the recent progress on the construction of metallacycle/metallacage-cored supramolecular polymers by the hierarchical self-assembly, and the potential applications in the areas of light emitting, sensing, bio-imaging, delivery and release, etc., are also presented.

scholarly journals Thermodynamics of structured fluids. Hard science for soft materials

2000 ◽  
Vol 72 (10) ◽  
pp. 1819-1834 ◽  
Author(s):  
John M. Prausnitz
Keyword(s):  
Self Assembly ◽  
Theoretical Calculations ◽  
Soft Materials ◽  
Confined Space ◽  
Molecular Physics ◽  
Fluid Structure ◽  
Light Emitting ◽  
Structured Fluids ◽  
Recent Developments ◽  
Narrow Space

At liquid-like densities, molecules of complex fluids can assume a variety of structures (or positions) in space; when the molecules contain many atoms as, for example, in polymers, that variety becomes very large. Further, when confined to a narrow space, it is possible to achieve structures that are not normally observed. Thanks to recent advances in statistical mechanics and molecular physics, and thanks to increasingly fast computers, it is now possible to calculate a fluid's structure, that is, the positions of molecules at equilibrium under given conditions. Calculation of fluid structure is useful because thermodynamic properties depend strongly on that structure, leading to possible applications for new materials. Three examples illustrate some recent developments; each example is presented only schematically (with a minimum of equations) to indicate the physical basis of the mathematical description. The first example considers the effect of branching on self-assembly (micellization) of copolymers (with possible long-range applications in medicine). The second and third examples consider the effect of confinement on fluid structure: first, crystallization in a narrow, confined space to produce a desired crystal structure (with possible applications for light-emitting diodes) and second, suppression of micellization of a diblock copolymer in a thin film (with possible application in lithography). Whenever possible, theoretical calculations are compared with experimental results.

scholarly journals Superhydrophobic surfaces

2012 ◽  
Vol 21 (1-2) ◽  
pp. 21-32 ◽  
Author(s):  
Ioannis Karapanagiotis ◽  
Panagiotis Manoudis
Keyword(s):  
Water Repellency ◽  
Superhydrophobic Surfaces ◽  
Water Repellent ◽  
Baxter Equation ◽  
Feature Article ◽  
Surface Protection ◽  
Recent Developments ◽  
Potential Applications ◽  
Nanoparticle Composites ◽  
Potential Use

AbstractSuperhydrophobicity – also known as water repellency – has recently attracted considerable attention because of its numerous potential applications. However, the fundamental concepts and equations describing the wettability of superhydrophobic surfaces have been known since the 1940s. These concepts are reviewed and discussed in the present feature article in light of the recent developments. Furthermore, the potential use of water-repellent siloxane-nanoparticle composites for surface protection and consolidation of stones and mortars used in outdoor objects of cultural heritage is investigated. Finally, it is shown that the wettability of the composite surfaces can be predicted by the Cassie-Baxter equation.

scholarly journals A Review on Graphene-Based Light Emitting Functional Devices

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4217
Author(s):  
Muhammad Junaid ◽  
M. H. Md Khir ◽  
Gunawan Witjaksono ◽  
Zaka Ullah ◽  
Nelson Tansu ◽  
...  
Keyword(s):  
Thermal Emission ◽  
Ultra Wideband ◽  
Optical Modulators ◽  
Active Materials ◽  
Linear Dispersion ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Theoretical Investigations ◽  
Recent Developments ◽  
Potential Applications

In recent years, the field of nanophotonics has progressively developed. However, constant demand for the development of new light source still exists at the nanometric scale. Light emissions from graphene-based active materials can provide a leading platform for the development of two dimensional (2-D), flexible, thin, and robust light-emitting sources. The exceptional structure of Dirac’s electrons in graphene, massless fermions, and the linear dispersion relationship with ultra-wideband plasmon and tunable surface polarities allows numerous applications in optoelectronics and plasmonics. In this article, we present a comprehensive review of recent developments in graphene-based light-emitting devices. Light emissions from graphene-based devices have been evaluated with different aspects, such as thermal emission, electroluminescence, and plasmons assisted emission. Theoretical investigations, along with experimental demonstration in the development of graphene-based light-emitting devices, have also been reviewed and discussed. Moreover, the graphene-based light-emitting devices are also addressed from the perspective of future applications, such as optical modulators, optical interconnects, and optical sensing. Finally, this review provides a comprehensive discussion on current technological issues and challenges related to the potential applications of emerging graphene-based light-emitting devices.

Supramolecular polymers constructed by orthogonal self-assembly based on host–guest and metal–ligand interactions

2015 ◽  
Vol 44 (3) ◽  
pp. 815-832 ◽  
Author(s):  
Peifa Wei ◽  
Xuzhou Yan ◽  
Feihe Huang
Keyword(s):  
Self Assembly ◽  
Recent Progress ◽  
Metal Coordination ◽  
Supramolecular Polymers ◽  
Ligand Interactions ◽  
Metal Ligand

This review describes recent progress in the orthogonal construction of supramolecular polymers based on host–guest and metal coordination interactions.

Some recent developments in surface and interface design for photocatalytic and electrocatalytic hybrid structures

2015 ◽  
Vol 51 (51) ◽  
pp. 10261-10271 ◽  
Author(s):  
Song Bai ◽  
Yujie Xiong
Keyword(s):  
Interface Design ◽  
Recent Progress ◽  
Catalytic Performance ◽  
Hybrid Structures ◽  
Feature Article ◽  
Inorganic Hybrid ◽  
Surface And Interface ◽  
Catalytic Application ◽  
Recent Developments

This feature article outlines recent progress in the surface and interface design of inorganic hybrid structures, which offers the possibilities to tune their catalytic performance, with a focus on the fundamentals behind each synthesis and catalytic application.

Water compatible supramolecular polymers: recent progress

2021 ◽  
Author(s):  
Weiwei Han ◽  
Wei Xiang ◽  
Qingyun Li ◽  
Hanwei Zhang ◽  
Yabi Yang ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Electrostatic Interactions ◽  
Recent Progress ◽  
Polymer Structure ◽  
Supramolecular Polymers ◽  
The Core ◽  
Potential Applications

In this review, we summarize the chemistry of water compatible supramolecular polymers (WCSPs) based on the core supramolecular approaches at play, namely hydrogen-bonding arrays, electrostatic interactions, large π-conjugated subunits, host–guest interactions, and peptide-based systems, respectively. We discuss both synthesis and polymer structure, as well as the underlying design expectations and potential applications.

Fluorescent supramolecular polymers with aggregation induced emission properties

2019 ◽  
Vol 10 (7) ◽  
pp. 796-818 ◽  
Author(s):  
Bo Li ◽  
Tian He ◽  
Xi Shen ◽  
Danting Tang ◽  
Shouchun Yin
Keyword(s):  
Chemical Sensors ◽  
Electronic Materials ◽  
Noncovalent Interactions ◽  
Polymeric Materials ◽  
Supramolecular Polymers ◽  
Organic Electronic ◽  
Organic Electronic Materials ◽  
Different Types ◽  
Recent Developments ◽  
Bio Imaging

This review summarizes the recent developments in AIE fluorescent supramolecular polymeric materials based on different types of intermolecular noncovalent interactions, and their wide ranging applications as chemical sensors, organic electronic materials, bio-imaging agents and so on.

scholarly journals AlGaN Nanowires for Ultraviolet Light-Emitting: Recent Progress, Challenges, and Prospects

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 125 ◽  
Author(s):  
Songrui Zhao ◽  
Jiaying Lu ◽  
Xu Hai ◽  
Xue Yin
Keyword(s):  
Aluminum Gallium Nitride ◽  
Recent Progress ◽  
Stark Effect ◽  
Uv Light ◽  
Chemical Vapor ◽  
Light Emitting ◽  
Quantum Confined Stark Effect ◽  
Recent Developments ◽  
Uv Leds ◽  
Made In

In this paper, we discuss the recent progress made in aluminum gallium nitride (AlGaN) nanowire ultraviolet (UV) light-emitting diodes (LEDs). The AlGaN nanowires used for such LED devices are mainly grown by molecular beam epitaxy (MBE) and metalorganic chemical vapor deposition (MOCVD); and various foreign substrates/templates have been investigated. Devices on Si so far exhibit the best performance, whereas devices on metal and graphene have also been investigated to mitigate various limitations of Si substrate, e.g., the UV light absorption. Moreover, patterned growth techniques have also been developed to grow AlGaN nanowire UV LED structures, in order to address issues with the spontaneously formed nanowires. Furthermore, to reduce the quantum confined Stark effect (QCSE), nonpolar AlGaN nanowire UV LEDs exploiting the nonpolar nanowire sidewalls have been demonstrated. With these recent developments, the prospects, together with the general challenges of AlGaN nanowire UV LEDs, are discussed in the end.

Fluidic Surface-Tension-Directed Self-Assembly of Miniaturized Semiconductor Dies Across Length Scales and 3D Topologies

2009 ◽  
Vol 1179 ◽  
Author(s):  
Heiko Jacobs ◽  
Robert J Knuesel
Keyword(s):  
Surface Tension ◽  
Self Assembly ◽  
Recent Progress ◽  
Semiconductor Device ◽  
Dynamic Contact Angle ◽  
Dynamic Contact ◽  
Length Scales ◽  
Light Emitting ◽  
Dipping Process ◽  
3D Surfaces

AbstractThis proceeding discusses recent progress on engineered fluidic surface-tension-directed self-assembly involving liquid solder. The process is applied to the assembly of discrete inorganic semiconductor device components at different length scales producing electrically interconnected devices and systems. Prior results include assembly with unique angular orientation and contact pad registration, parallel packaging, and the programmable assembly of various types of light emitting diodes. Recent progress on the scaling of the minimal die size from 300 to 30 μm is discussed which required the development of a new delivery system to concentrate and effectively introduce the components to solder-based receptors. Specifically, components are pre-oriented at a liquid-air or liquid-liquid interface and transferred onto the solder based receptors using a dynamic contact angle with a dipping process. Recent applications include the tiling of curved and 3D surfaces with single crystal semiconductors including the formation of flexible 3D solar cells.

Boron–nitrogen doped carbon scaffolding: organic chemistry, self-assembly and materials applications of borazine and its derivatives

2015 ◽  
Vol 51 (83) ◽  
pp. 15222-15236 ◽  
Author(s):  
Davide Bonifazi ◽  
Francesco Fasano ◽  
M. Mercedes Lorenzo-Garcia ◽  
Davide Marinelli ◽  
Hamid Oubaha ◽  
...  
Keyword(s):  
Organic Chemistry ◽  
Organic Synthesis ◽  
Self Assembly ◽  
Feature Article ◽  
Nitrogen Doped ◽  
The Past ◽  
Recent Developments ◽  
Nitrogen Doped Carbon ◽  
Boron Nitrogen

In this feature article we describe the past and recent developments in the organic synthesis and functionalisation of borazine, the isostructural inorganic analogue of benzene.

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