Materials Literature
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Abstract Power conversion efficiency of a solar cell is a complex parameter which usually hides the molecular details of the charge generation process. For rationally tailoring the overall device efficiency of the dye-sensitized solar cell, detailed molecular understanding of photoinduced reactions at the dye-TiO2 int…
Plasma-assisted Ag and Au subtractive etching was investigated in CH4 plasmas at 10 °C. The etch rate of Ag (29 ± 2 nm/min) was higher than that observed for Cu (17 nm/min), while the Au etch rate (12 nm/min) was lower than that for both Ag and Cu. Etch rates of Ag and Au due to pressure variation decreased as pressur…
We show that a graphitic carbon interfacial layer, derived from C70 by annealing at 500 °C, results in a significant increase in the attainable photocurrent of a photoelectrochemical cell that contains a WO3 -functionalized fluorine-doped tin oxide (FTO) photoanode. Time-resolved photoluminescence spectroscopy, photoc…
Objective: The purpose of this work is to assess the ionotropic gelation of chitosan as a new method to encapsulate and increase the stability of ascorbic acid (AA). Methods: Chitosan was employed for the encapsulation of AA employing the technique of ionotropic gelation with sodium lauryl sulfate. The encapsulation p…
Abstract Graphene, as an important ideal two‐dimensional material, is driving more and more attention because of its unique mechanical strength and chemical stability. In this work, the rectification effect of nanopores in graphene/PET structure at different KCl concentration is investigated. Porous graphene membrane…
Silicon Avalanche Based Light Emitting Diodes and Their Potential Integration into CMOS and RF Integrated Circuit Technology
MOTIVATION: Protein sequence and structure representation and manipulation require dedicated software libraries to support methods of increasing complexity. Here, we describe the VIrtual Constrution TOol for pRoteins (Victor) C++ library, an open source platform dedicated to enabling inexperienced users to develop adv…
A two-step separation procedure for the IDMS-analysis of Pd and Pt was developed enabling effective separation from interfering elements.
The layered antiferromagnetic ACrX(2) -type compounds are currently highlighted as prominent material candidates for low- and intermediate-temperature thermoelectric (TE) applications. A key to attain the enhanced TE characteristics is to apply high-temperature sintering which presumably introduces some cation disorde…
Materials that can switch from stiff to soft or from brittle to tough by slightly changing the temperature, pH, electric, or magnetic fields of their environments, can have a pronounced impact on many applications, including sensors, biomedical materials for less invasive surgeries, and packaging materials. In this wo…
Synthesizing unprecedented diamagnetic adducts of an endohedral metallofullerene was achieved by using 1,3-dipolar cycloaddition reaction of paramagnetic La@C(s)-C82 with a simultaneous hydrogen addition. The selective formation of two main products, La@C(s)-C82HCMe2NMeCHPh (2a and 2b), was first detected by HPLC anal…
Purpose. Prospectivity assessments of the nanomaterials usage in construction technologies at the same time meeting the requirements of environmental safety and rational use of the natural resources. Methodology. During the study the building composites, in particular concretes, which are obtained on the base of the r…
In this study, the authors present a detailed procedure for the quantitative measurement of the field emission properties of a large number of vertically aligned carbon nanotubes/nanofibers (CNs) using a scanning anode field emission microscope (SAFEM). This method provides the statistical distribution of all the rele…
Front-surface photonic nanostructures contribute both reduced reflection loss and light trapping to increase optical absorption in solar cells. We investigated the effect of sub-wavelength photonic nanostructures on light trapping in thin-film crystalline silicon solar cells. We clarified that, even though the angle d…
ABSTRACT A series of substituted 9‐vinylcarbazole polysiloxane was synthesized followed by room temperature vulcanization to afford a crosslink network via trimethoxysilane crosslinker. Structural confirmation was made using FTIR, one and two‐dimensional1H‐ and29Si‐NMR spectroscopy. Quantitative estimation of the amou…
A series of functionalized meso-boron dipyrromethenyl porphyrin building blocks were synthesized by condensing one equivalent of readily available 2-formyl boron dipyrromethene (2-formyl BODIPY) with two equivalents of meso-anisyl dipyrromethane and one equivalent of functionalized aldehyde under mild acid catalyzed c…
The preparation of polyethylenimine (PEI)-polylactide (PLA) copolymer structures is promising as these materials may find use in gene and/or drug delivery applications. In the current work we have explored the utilization of linear polyethylenimine (L-PEI) as multifunctional initiator for the organocatalytic ring-open…
Highly ordered TiO 2 nanotube array (TNA) films were fabricated by anodic oxidation of Ti foil. Au nanoparticles (NPs) are decorated onto the top of TNA films with the aid of ion-sputtering and thermal annealing. The steady-state photoluminescence (PL) spectra, as well as x-ray photoelectron spectroscopy (XPS) and Ram…
${\mathrm{IrTe}}_{2}$ exhibits a structural phase transition at ${T}_{s}\ensuremath{\sim}280$ K. Utilizing the density functional theory, we have simulated optical spectra above and below ${T}_{s}$. Simulated optical absorption spectra for a specific (5X) structure show great agreement with experimental data below ${T…
We demonstrate the formation of stable magnetic microwires (MWs) in solution starting from a highly diluted solution of monomer–thermal initiator–superparamagnetic nanoparticles (SMNPs). Under an external magnetic field (MF) the SMNPs get closely packed into wire-like assemblies that become permanently linked due to s…