Materials Literature
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Materials design has become a vigorous aspect for organic solid‐state lasing, which often lacks a fundamental understanding of structure–property relationships. The development of such an understanding is undertaken in this progress report, which systematically explores the now‐available libraries of organic single cr…
For a long time, a top priority in the nuclear industry was the safe, reliable, and economic operation of light water reactors. However, the development of accident-tolerant fuel (ATF) became a hot topic in the nuclear research field after the March 2011 events at Fukushima, Japan. In Korea, innovative concepts of ATF…
Halloysite clay is an aluminosilicate nanotube formed by rolling flat sheets of kaolinite clay. They have a 15 nm lumen, 50-70 nm external diameter, length of 0.5-1 μm, and different inside/outside chemistry. Due to these nanoscale properties, they are used for loading, storage, and controlled release of active chemic…
We have investigated the kinetic and thermodynamic supramolecular polymerizations of a series of amide-functionalized perylene bisimide (PBI) organogelator molecules bearing alkyl spacers of varied lengths (ethylene to pentylene chains, PBI-1-C2 to PBI-1-C5) between the amide and PBI imide groups. These amide-function…
Bioinspired surfaces with special wettability and adhesion have attracted great interest in both fundamental research and industry applications. Various kinds of special wetting surfaces have been constructed by adjusting the topographical structure and chemical composition. Here, recent progress of the artificial sup…
The separation of oil and water is a worldwide challenge due to the ever-increasing amount of oily industrial wastewater and polluted oceanic waters, as well as the increasing frequency of oil spill accidents. As the leader of advanced fibrous materials, electrospun nanofibers combine the properties of tunable wettabi…
, the ability to create strongly coupled spin systems potentially offers access to a whole of host of 1, 2 and 3-dimensional materials with interesting structural and physical properties. This perspective summarises recent progress in this rapidly expanding sub-genre of molecular magnetism from the viewpoint of the sy…
A novel type of ionic covalent organic framework (ICOF), which contains sp(3) hybridized boron anionic centers and tunable countercations, was constructed by formation of spiroborate linkages. These ICOFs exhibit high BET surface areas up to 1259 m(2) g(-1) and adsorb a significant amount of H2 (up to 3.11 wt %, 77 K,…
A simplified route towards the synthesis of polyvinyl alcohol/silica/clay (PVA-SiO2-clay) composites was presented. PVA-SiO2-clay composites were prepared via solution intercalation method. All the composites were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), ads…
Abstract Optical phonons and the phase transition of relaxor ferroelectric ceramics Sr x Ba 1− x Nb 2 O 6 (SBN) and Ca y (Sr 0.5 Ba 0.5 ) 1− y Nb 2 O 6 (CSBN) with different composition ( , ) have been investigated by variable-temperature Raman scattering and spectroscopic ellipsometry. The anomalous temperature depen…
Geometrical ambiguity means the cases in which more than one powder indexing solution exists. Using a new function implemented in the powder indexing software CONOGRAPH, unit cells that involve geometrical ambiguity are exhaustively searched. As a result, many unknown cases are obtained, although the number of such un…
Growing graphene on gallium nitride (GaN) at temperatures greater than 900◦C is a challenge that must be overcome to obtain high quality of GaN epi-layers. We successfully met this challenge using C 2 H 2 as the carbon source. We demonstrated that graphene can be grown both on copper and directly on GaN epi-layers. Th…
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The (0001) surface of vanadium sesquioxide, V2O3, is terminated by vanadyl groups under standard ultra high vacuum preparation conditions. Reduction with electrons results in a chemically highly active surface with a well-defined LEED pattern indicating a high degree of order. In this work we report the first quantita…
Here we prepare polycrystalline Mn <sub>1−x</sub> Ni <sub>x</sub> WO <sub>4</sub> ceramics with <italic>x</italic> = 0, 0.02, 0.04, 0.06 for investigating their magnetic, ferroelectric, and multiferroic properties.
Water soluble size variable (2.43–5.09 nm) CdSe quantum dots.
We report on the electrical properties of carbon nanotubes networks deposited using spray deposition onto interdigitated gold structures. The properties have been measured experimentally and analyzed using a computational method. In particular, we studied the variation of resistance as a function of the temperature in…
We propose a method to produce valley-polarized electron beams using a bilayer graphene npn junction. By analyzing the transmission properties of electrons through the junction with zigzag interface in the presence of trigonal warping, we observe that there exist a range of incident energies and barrier heights in whi…
In this article, the results of a focused systematic investigation of the nature, type, and concentration of cationic and anionic surfactants and proteins required to simultaneously disperse single-walled carbon nanotubes (SWNTs) and enhance their electrical conductivities in water are presented. The dispersibility of…
In this work, selective interactions between the constituents of the composite CNT@MnCu ( 2 ) prepared using carbon nonotubes (CNTs) ( 1 ) and the heterobimetallic chain [MnCu(opba)] n (MnCu), opba = o -phenylenebis(oxamate), were studied mainly by resonance Raman spectroscopy and high-resolution transmission electron…