Materials Literature
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The femtosecond dynamics of the Fermi surface of DyTe3 and its band structure are investigated by time- and angle-resolved photoemission spectroscopy. We directly monitor the ultrafast collapse of the charge density wave gap within 200 fs.
Starch was polymerized with methacrylic acid (MAA) to different magnitudes of poly (MAA) using potassium persulphate/sodium thiosulphate redox initiation system. The polymerization products are referred to as “composite”. The latter consists of poly (MAA)-starch graft copolymer, poly (MAA) in the form of homopolymer,…
Chrome-free Dacromet coating is a green anti-corrosion technology. This paper studied the effects of nanoparticles of TiO2 and SiO2 on the coatings. The results shown the addition of nano-TiO2 (T-coating )improved the physical properties and corrosion resistance. The addition of nano-SiO2 (S-coating )was week bonded w…
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The research of silicon solar cells mainly focuses on reducing cost and improving con- version efficiency, and one of the effective methods of improving photoelectric conversion efficiency of solar cells is to decrease the reflection of incident sunlight onto the light-receiving surface. The porous Si layer can work f…
A novel polymerizable perylene diimide electron acceptor 1,7-bis(N,N-bis(4-methoxy phenyl)aniline)-N-(3-(2-ethylhexoxy)propylamide)-N-hexyl-perylene diimide acrylate (PDA) have been synthesized, and the chemical structures are confirmed by 1H NMR and FT-IR. The PDA shows broad absorption bands in 400–850 nm, and the op…
We have fabricated zinc oxide and metal phthalocyanine based hybrid p-n junction diodes using aluminum doped zinc oxide film as transparent conducting electrode. The current rectifying behavior of these hybrid diodes is similar to those of inorganic p-n junction diodes. The current-voltage measurement gives a rectific…
Qualitative evidence of chemical reactions between combustible metal shaped charges in air and water has previously been reported based on high-speed photography, spectroscopy, and calorimetry. This report covers investigations directed towards quantifying the conditions under which reaction occurs and the consequence…
We demonstrate that the universal conductance fluctuations (UCF) can be used as a direct probe to study the valley quantum states in disordered graphene. The UCF magnitude in graphene is suppressed by a factor of four at high carrier densities where the short-range disorder essentially breaks the valley degeneracy of…
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The effect of different phase compensation methods on second harmonic ratio of magnetizing inrush is investigated. The flux linkage expression of switching on an unload transformer is deduced and influence factors of inrush current are analyzed firstly. Then the difference of two kinds of phase compensation methods, f…
Water is known to exhibit a number of anomalous behaviors and to be an exceptionally poor glass-former. However, both features are strongly affected by applying pressure or adding salt. This means that these two parameters have strong influence on physical factors controlling the unusual features of water. By using a…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Subhrangsu Sarkar, Sanjeev Kumar, Pratap Raychaudhuri, Pushan Ayyub; Size effect on the supercond…
To produce safe, stable, and cost-effective quantum dots (QDs), the experiments were conducted with paraffin liquid as a solvent. CdSe QDs are synthesized by using a pyrolysis based on the chemical colloidal method. When the cadmium precursor was prepared, the tuning of stearic acid concentrations was implemented. The…
Bamboo is an attractive alternative and renewable fuel source compared to fossil fuels. However, there is a requirement for increasing the efficiency and reducing the costs associated with the methods by which bamboo is processed. Bamboo was simultaneously treated by ball milling and hydrothermal pretreatment, using a…
In this study we aims to examine the effects of Co3O4 and NiO doping on the defects and electrical properties in ZnO-Bi2O3-Sb2O3 (Sb/Bi=0.5) varistors. It seemed to form □(0.20 eV) and □(0.33 eV) as dominant defects in Co and Ni co-doped ZBS system, however only □appeared in Co- or Ni-doped ZBS. Even though the same d…
The cotton fabrics was treated with the blending of organic fluorine water and oil repellent finishing agent and cross-linking agent. The contact angle to water was over 120°and that to oil was above 110°after the fabrics were washed 20 times, indicating that the water and oil repellent properties and durability of fa…
Optical properties of quantum dots have created a lot of interest within the community due to their size tunable, fundamentally unique properties arising from the quantum confinement effect that are unforeseen in bulk. In this review we have highlighted some of the recent advances in the field including the synthetic…
BiFeO3 and BiFeO3-BiMnO3 films were prepared by spray pyrolysis technique and their structural and optical properties were examined. The X-ray diffraction of these films shows that the rhombohedral structure of BFO film is modified and reduced toward the monoclinic or tetrahedral structure at 10 at.% of BiMnO3 with hi…
Crystal defects induced by irradiation obstruct dislocation movement. Hence, the critical resolved shear stress of irradiated material increases. While part of the radiation defects are swept by dislocations released from dislocation sources; therefore localization of plastic deformation are caused by a decrease of ra…