Materials Literature
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A new photovoltaic film consisting of monoclinic WO(3) semiconductor and conjugated polythiophene (PT) is prepared via an in situ polymerization which is initiated by photoexcited WO(3). It is observed that PT grows on the WO(3) substrate along with reaction time, leading to uniform and high quality PT-WO(3) composite…
The effective thermal conductivity of particulate composites with oriented spheroidal metallic particles embedded in a dielectric matrix is analyzed under the framework of the two-temperature model of heat conduction. The obtained analytical results show that the effective thermal conductivity depends strongly on (1)…
Eine Frage des Lichts: Mit Licht zweier Wellenlängen und Erwärmen kann die Assoziation zweier spezifischer Einschlusskomplexe in Lösung kontrolliert werden. Der Gastmolekülaustausch lässt sich abhängig von der Wellenlänge nacheinander oder parallel durchführen, und es sind drei Kombinationen von Einschlusskomplexen zu…
Abstract Functional polymers with azetidinium groups in the backbone are synthesized via the reaction of aminotelechelic polymers, containing primary and secondary amino groups, with epichlorohydrin. During the reaction, the secondary amino groups are transformed into azetidinium groups and the primary amino groups ar…
The post-synthesis chemical modification of various porous carbon materials with unsaturated organic compounds is reported. By this method, amine, alcohol, carboxylate, and sulfonic acid functional groups can be easily incorporated into the materials. Different carbonaceous materials with surface areas ranging from 24…
This paper presents an experimental procedure for retrieving the effective constitutive parameters of chiral materials. Unlike past research that primarily deals with isotropic materials, this study considers a lossy uniaxial bianisotropic slab with a nonzero chirality along its axial direction. First, plane-wave scat…
BIN YUab, JIAN HANab, XIANGBING HEb, GUOPING XUb & XINGBO DINGb a The Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Zhejiang Sci-Tech University , Ministry of Education , Hangzhou , China b School of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou , China Polypropylene (PP)…
Kink sites play a critical role in crystal growth. The incorporation of a growth unit into a kink site (1) maintains the free energy of the edge constant and (2) creates another site with the same properties. These properties allow growth through successive incorporation events to proceed in a self-sustaining manner s…
In this work, naturally woven coconut sheath, a new type of reinforcement was used. Composite Laminates were prepared in a compression molding press. Tensile, flexural and impact tests were conducted as per ASTM standards, and results were compared with the glass fibre composite. Fractured specimens were analyzed with…
Using the full-potential linearized augmented plane wave (FLAPW) method, we study the electronic and magnetic properties of C-doped graphene-like ZnO nanosheets (NSs). The results show that in a specimen with isolated C-doping, there is a spontaneous polarization with a magnetic moment 2.0μB/C. In two C-doped systems…
The effects of surface modification of vertically aligned ZnO nanowires (NWs) with anthracene for the improved photocurrent, photoresponse, and UV photoluminescence have been investigated in this work. The formation of ZnO/anthracene based inorganic/organic NWs heterostructure by surface capping with anthracene soluti…
Abstract The dissolution of pulps with varying characteristic properties, for example cellulose chain length or content of hemicellulose, has been investigated in two alkaline solvent systems [sodium hydroxide (NaOH)/urea/thiourea (8:8:6.5 by wt.) and NaOH/zince oxide (ZnO) (9:0.5 by wt.)]. One standard paper pulp, tw…
The carbon nanotube (CNT)/polypropylene(PP) composites have been prepared with the aid of a silane coupling agent (ZFDA, Dow Corning® Z‐6173) and then characterized by electron microscopic, electrical, mechanical, and thermal measurements in order to understand the role of the silane coupling agent in CNT/PP composite…
This paper presents a study on the natural vibration of circular double-layer graphene sheets (DLGSs) using circular plate theory. The circular DLGSs are assumed to be coupled together through the carbon–carbon van der Waals (vdW) force between their two layers. An analytical solution of coupled governing equations is…
Based on first-principles density functional theory calculations, we report a novel class of carbon nanostructures consisting of superlattice arrangements of caged fullerene configurations of various sizes embedded within planes of twisted bilayer graphene. Formation of these structures is the outcome of interlayer C-…
Silicon based solar cells show a poor yield in the UV-blue range of the solar spectrum. The thermalization of the charge carriers is one major loss mechanism, which could be overcome by depositing a quantum-cutting material in front of the solar cell. This phenomenon has recently been demonstrated in materials doped w…
Soy protein/nylon 6 monolithic and core-shell nanofibers were solution-blown and collected on a rotating drum as fiber mats. Tensile tests of rectangular strips of these mats revealed their stress-strain dependences. These dependences were linear at low strains which correspond to their elastic behavior. Then, a plast…
Bird beaks are layered structures, which contain a bony core and an outer keratin layer. The elastic moduli of this bone and keratin were obtained in a previous study. However, the mechanical role and interaction of both materials in stress dissipation during seed crushing remain unknown. In this paper, a multi-layere…
Infrared and Raman vibrational spectrum are calculated using ab initio density functional theory for SiGe superlattice nanocrystal of approximately 1.6 nm length. After obtaining the optimum positions of atoms via geometrical optimization using density functional theory, coupled perturbed Hartree-Fock equations are so…
The cross-linked chitosan (XCs) was applied as a filler for chitosan (Cs) matrix. The composites film was prepared by solution casting at 0 to 12 wt/v% content of XCs filler and characterized under tensile analysis. The tensile strength (TS) and Young Modulus (YM) increased lineraly with the content of XCs filler (2 t…