Materials Literature
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Abstract Light-controlled reversible photoluminescence modulation has been achieved in photochromic Sr 2 SnO 4 :Eu 3+ . Upon x-ray or UV (280 nm) light irradiation, the material exhibits a significant photochromic phenomenon with color turning from white to purple, and after VIS light (450 nm) irradiation, the colored…
Ramanuj Mishraa, Ayon Bhattacharjeeb, Debanjan Bhattacharjeec, Keisham Nanao Singhd http://orcid.org/0000-0002-0649-537X & Parameswara Rao Alapati*aa Department of Physics, North Eastern Regional Institute of Science & Technology, Nirjuli, Indiab Department of Physics, National Institute of technology, Shillong, India…
This study demonstrates superior electrical and electroluminescence performance of inverted quantum-dot light-emitting diodes (QD-LEDs) with a V2O5/poly(N-vinylcarbazole) (PVK) hole conduction layer. Hole- and electron-only device measurements reveal a more balanced charge carrier injection as well as the higher hole…
Body centered cubic (bcc) metals such as iron and tungsten exhibit a brittle to ductile transition (BDT) in their fracture properties due to the thermally activated motion of screw dislocations. Bcc metals are critically important to nuclear applications, but the formation of point defects under irradiation can drasti…
Abstract Here, 3D hybrid plasmonic nanostructures using monolayer MoS 2 as sub‐nanometer spacer with high density hot spots are fabricated. For the 3D hybrid assemblies, the hot spots exist not only on the 0.65 nm thick MoS 2 gap regions between large and small nanoparticles (NP) but also between small and small NP. T…
Abstract The perovskite structure is rich in ferroelectricity. In contrast, ferroelectric antiperovskites have been scarcely confirmed experimentally since the discovery of M 3 AB‐type antiperovskites in the 1930s. Ferroelectricity is now revealed in an organic–inorganic hybrid X 3 AB antiperovskite structure, which e…
Here, we report a facile and rapid approach for the synthesis of multiband fluorescent graphitic carbon nanoparticles (CNPs) from queen of oils exhibiting multifarious applications. The as-prepared and calcined CNPs exhibited excitation dependent multiband emission that has been explored for detection of deoxyribonucl…
The influence of heat treatment process on microstructure and physiochemical properties of Cu77Zn21 alloy was studied. Samples were heated from 300 to 700°C for 15 minutes and gradually cooled to room temperature. Samples were characterized using mechanical testing and surface analysis techniques. It was observed that…
In crystalline solids, grain boundaries (GBs) play a significant role in determining a large number of material properties. The design and synthesis of special GBs has been a long-standing challenge in materials science and engineering. Here we demonstrate a mechanism to produce special GBs. Unique multigrain structur…
Improving soil aggregate stability (SAS) is important for crop production and environmental protection. Here we aim to quantify the effects of potassium (K) on SAS and to examine SAS as a function of potassium adsorption ratio (PAR) and cation ratio of soil structural stability (CROSS). The soils were treated with the…
A tunable transverse electric (TE) pass polarizer is demonstrated based on hybrid vanadium dioxide/silicon (VO2/Si) technology. The 20-μm-long TE pass polarizer exploits the phase transition of the active VO2 material to control the rejection of the unwanted transverse magnetic (TM) polarization. The device fea…
Abstract The formation of hybrid silica‐based systems to study the effect of the confinement on the emission properties of self‐assembled platinum(II) complexes is reported. The complexes behave as surfactants since they possess a hydrophobic moiety and, on the ancillary ligand, a relatively long hydrophilic chain ter…
The structure of macromolecules can be studied by small-angle scattering (SAS), but as this is an ill-posed problem, prior knowledge about the sample must be included in the analysis. Regularization methods are used for this purpose, as already implemented in indirect Fourier transformation and bead-modeling-based ana…
A new Hofmann-type porous coordination polymer [Fe(dpni){Ag(CN) 2 } 2 ]·4CH 3 CN (dpni = N, N ′-di-(4-pyridyl)-1,4,5,8-naphthalenetetracarboxydiimide) with the topology of pcu net has been synthesized. It exhibits two-step spin-crossover behavior. Moreover, reversible changes between incomplete and two-step spin-cross…
Graphene is one of the emerging materials in the nanotechnology industry due to its potential applications in diverse areas. We report the fabrication of graphene nanosheets by spontaneous electrochemical reaction using solvated ion intercalation into graphite. The current literature focuses on the fabrication of grap…
Abstract Many efforts have been made to obtain uniform cell structures from foam injection molding techniques. However, cell nucleation mechanism and complex dynamics during the cell formation have rarely been well understood. Here, high‐pressure foam injection molding (HPFIM) is achieved by combining the injection–co…
ABSTRACT High‐molecular‐weight poly(3‐hydroxybutyrate) (PHB) has a low reactivity toward its terminal functional groups. Thus, the chemical reactivity of PHB was enhanced by the chemical degradation that occurred via β‐elimination through the functionalization of PHB with ethylene glycol to give a low‐molecular‐weight…
In recent years, the synthesis and study of individual single-crystal VO2 nanowires (NWs) have been attracting much interest due to the unique properties of the material related with the single-domain metal-insulator phase transition in such NWs. Although single-crystal VO2 NWs offer much promise for practical applica…
Abstract Currently, there is great interest in perovskite compounds (ABO 3 ) due to their various applications as well as fundamental research that has taken place. However, oxygen vacancy in the perovskite is a very important parameter to control its physical properties. Hence, the polycrystalline ((Bi 1− x La x ) 0.…
Two-dimensional (2D) diffraction gratings have been developed rapidly in several growing areas of research, but most of them were polarization sensitive with limitations toward practical applications. We report a 2D diffraction grating solution for achieving polarization-independent high efficiency property. The grati…