Materials Literature
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Bit-patterned media (BPM) fabrication sets a high bar for nanopatterning especially in the aspects of lithography resolution and pattern transfer. Directed self-assembly (DSA) of spherical block copolymers (BCPs) provides promising pattern resolution extendibility and pattern layout flexibility as long as proper pre-p…
Magnetic circular dichroism and polarized optical absorption spectra of single-crystal DyFe${}_{3}$(BO${}_{3}$)${}_{4}$ were measured in the region of the crystal transparency from 8700 to 16 000 cm${}^{\ensuremath{-}1}$ in the temperature range from 90 K up to room temperature. Spectra of d-d and f-f transitions were…
Unexpected transport behavior can arise due to anisotropic single-particle scattering in multiband systems. Specifically, we show within a semiclassical Boltzmann approach beyond the relaxation-time approximation that anisotropic scattering between electronlike and holelike Fermi surfaces generically leads to negative…
Control of the shape and size of nanoparticles is crucial for using them as labels or as building blocks in nanotechnology. In fact, silver has so far been considered as having the widest variety of different morphologies at the nano-scale and micro-scale levels. To make progress in these criteria, in our paper we hav…
In this study, novel Polyaniline (PAni)/TiO 2 nanocomposites were applied on fluoride‐doped tin oxide (FTO) glass to act as an efficient counter electrode in dye‐sensitized solar cell (DSSC) application. PAni/TiO 2 nanocomposites were synthesized via chemical oxidation process using di‐2‐ethylhexylsulfosuccinate sodiu…
A strong dependence on crystalline orientation with a most conductive ⟨001⟩ growth direction is theoretically predicted for the thermal conductivity (κ) of SixGe1−x nanowires, even above room temperature and above 1 μm thickness. For instance, the room temperature κ of a 100 nm thick Si0.6Ge0.4 nanowire in the ⟨001⟩ d…
Double perovskite Sr2FeMoO6/ZnxFe1−xFe2O4 (SFMO/ZFO) composite systems with varying zinc content in nanosized zinc ferrite were synthesized. Composites have been prepared by two phase sintering process of limited intermixing of the SFMO calcined powder and ZFO nanoparticles. The structural analysis confirms the coexis…
ABSTRACT The aim of this work is to develop a halogen‐free thermoplastic polyurethane (TPU) composite with significantly improved fire performance by using a highly commercial phosphorous–nitrogen containing intumescent flame retardant (P–N IFR). Based on the characterizations of thermogravimetric analysis and in situ…
Gd-filled carbon nanotubes (which include the so-called gadonanotubes1) have been attracting much interest due to their potential use in medical diagnostic applications. In the present work, a vacuum filling method was performed to confine gadolinium(III) iodide in carbon nanotubes (CNTs). Filling yields in excess of…
The method used in this paper is in situ process for the synthesis of polyaniline (PANI)/manganese dioxide. Polymerization of aniline was carried out in a one-pot reaction vessel, and MnO 2 particles were influenced by the PANI pores to yield a PANI/MnO 2 nanocomposite. Morphology analysis showed soft and flat surface…
The effect of different toughening strategies on the mechanical properties of multiwalled carbon nanotube/polycarbonate composite (PC/MWNT) for electromagnetic interference shielding was analyzed from the mechanical and fracture tests using linear elastic fracture mechanics. The effect of processing (injection and com…
Microstructural evolution of ultrananocrystalline diamond (UNCD) films as a function of substrate temperature (TS) and/or by introducing H2 in Ar/CH4 plasma is investigated. Variation of the sp2 and sp3 carbon content is analyzed using UV-Raman and near-edge X-ray absorption fine structure spectra. Morphological and m…
ABSTRACT The effect of the molecular orientation direction of a polymer matrix on the in‐plane thermal conductivity (TC) of injection‐molded polymer/hexagonal boron nitride (h‐BN) composites is investigated. In this system, the h‐BN platelets align in the in‐plane direction owing to injection shear flow. Three molecul…
This research focuses on the fabrication and characterization of silver (Ag) and silicon (Si) nanoclusters that might be used for solar cell applications. Silver and silicon nanoclusters have been synthesized by means of dc magnetron sputtering and inert gas condensation inside an ultra-high vacuum compatible system.…
We demonstrate conductivity switching from a metal to semiconductor using plasmonic excitation and charge injection in Au-nanorod (AuNRs)-ZnO nanocomposite films. ZnO films 12.6, 20.3, and 35.6 nm were deposited over AuNRs using atomic layer deposition. In dark conditions, the films transitioned from metallic to semic…
ABSTRACT Large‐scale superhydrophobic composite films with enhanced tensile properties were prepared by multinozzle conveyor belt electrospinning. First, a strategy of conveyor belt electrospinning was introduced for large‐scale fabrication since the conveyor belt can expand the electrospinning area unlimitedly. Durin…
Zircoaluminate coupling agents can be used as surface modifiers or adhesion additives in many applications, such as plastics, rubbers, coatings, and pigments. In this paper, a range of zircoaluminates with different functional groups were synthesized, by using polyaluminum chloride (PAC), zirconium oxychloride, 1,2-pr…
Formation of stacked aggregates can dramatically alter the properties of aromatic π-systems, yet the solution-phase structure elucidation of these aggregates is often impossible because broad distributions of species are formed, giving uninformative spectroscopic data. Here, we show that a butadiyne-linked zinc porphy…
Due to the development of nuclear technology and use of these technologies in various fields of industry, medicine, research and etc, protection against radioactive rays is one of the most important topics in this field .The purpose of this is to reduce the dose rate from radioactive sources. The sources in terms of c…
The platinum copper alloy nanocrystals (NCs) have generated much interest because of their wide applications in fuel cells due primarily to their good catalytic performance and to decreasing sensitivity toward CO poisoning. The exact atomic-level morphology of platinum copper alloy NCs is still not clear in the litera…