Materials Literature
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A facile synthetic route has been developed for the covalent grafting of biocompatible poly(lactic acid) (PLA) onto CdSe Quantum Dots (QDs) using surface initiated ring opening polymerization (ROP) to afford CdSe-g-PLA nanocomposites. At first, 2-mercaptoethanol (ME) capped CdSe QDs were synthesized through a wet chem…
Copper(II) chloride (CuCl2) doped poly(N-vinyl carbazole) (PNVC)-ferric oxide (Fe3O4) hybrid composites have been prepared and characterized by Fourier transform infrared spectroscopic studies, UV-Vis spectroscopy, high resolution transmission electron microscopy (HRTEM) and X-ray diffraction analyses and evaluated in…
Poly(styrene-b-2-vinyl pyridine) (PS-b-P2VP) lamellar film which is hydrophobic block-hydrophilic polyelectrolyte block polymer of 52 kg/mol-b-57 kg/mol and PS-b-P2VP film with reactive monomer (RM257) were prepared for photonic gel films. The lamellar stacks, which is alternating layer of hydrophilic and hydrophobic…
We report an improvement of efficiency in red phosphorescent organic light-emitting diodes (PHOLEDs) based on a combination of heterojunction (HJ) structure and mixed host (MH) system using a phosphorescent red emitter: bis(2-phenylquinolinato)-acetylacetonate iridium III [Ir(pq)2(acac)] doped in 4,4,N,N'-dicarbazoleb…
A series of red phosphorescent Ir(III) complexes 1-5 based on benzoylphenylpyridine and various ancillary ligands were synthesized and their photophysical properties were investigated. The EL efficiencies were quite sensitive to the structural features of the dopants in the emitting layers. Particularly, using complex…
The CdSe-single-walled carbon nanotube (SWNT) hybrids are synthesized for measuring contact resistance between CdSe quantum dots and SWNTs in two hybrid samples, i.e., spray-deposited CdSe on SWNTs, and pyrene-self assembled CdSe on SWNTs. Currents are measured through indium-tin oxide (ITO), CdSe-SWNT hybrids and the…
An efficient inverted polymer solar cell (PSC) with a transparent amorphous titanium oxide (TiOx) as an electron transporting layer (ETL) between bottom electrode and photo-active layer, and a tungsten oxide (WO3) inserted as a hole transporting layer (HTL) was fabricated. Introducing of ETL and HTL results in increas…
As the pattern size is cross to virus and molecular sizes, the fabrication cost becomes important. Advantages of the block copolymer lithography (BCPL) through the nanoimprint lithography (NIL) are no diffraction limits, simple and cheap process, and complementary for each of major draw- backs. In this paper, the dire…
This study examined the effects of the alignment of ZnO nanorod arrays (NRAs) on the light extraction enhancement of GaN-based light emitting diodes (LEDs), where ZnO NRAs were synthesized hydrothermally. The shape of the ZnO NRAs was controlled using seed layers for flower and vertical structures. Numerical analysis…
In order to prepare anode material for low-temperature solid oxide fuel cells (SOFCs), the mesoporous NiO-SDC was synthesized using a cationic surfactant (cetyltrimethyl-ammonium bromide; CTAB) for obtaining wide triple-phase boundary (TPB). In addition, Ni-SDC anode-supported SOFC single cells with YSZ electrolyte an…
In this study, a one-dimensional microstructure tungsten grating is optimized for potential application as Thermo Photovoltaic (TPV) emitter. The influence of gratings geometric parameters on the spectral emittance are studied by using the Rigorous Coupled-Wave Analysis (RCWA). The results show that the spectral emitt…
This study presents a power quality study on the Italian Electric Grid. The most probable voltage sags, in terms of number and duration, have been identified thank to a statistical analysis, based on a yearly survey (2012). In particular, four zones have been considering (North, Central, Central-South and South) in or…
We studied the changes in the optical properties of single-walled carbon nanotubes (SWCNTs) induced by chemical doping. An enhancement in the photoluminescence (PL) of the SWCNTs was observed after doping with reducing agents, whereas a reduction in the PL intensity and the appearance of fast exciton decay resulted fr…
The superconducting properties of cation off-stoichiometric GdB2Cu3O7-δ (Gd123) thin film grown by pulsed laser deposition method show a strong dependence on target compositions and particularly get worse in case of a ratio Ba/Gd > 2. We investigated the effect of cation off-stoichiometric target sample on lattice pro…
Debonding of Shape Memory Alloy (SMA) wires in SMA reinforced polymer matrix composites is a complex phenomenon compared to other fabric fiber debonding in similar matrix composites. This paper focuses on experimental study and analytical correlation of stress required for debonding of thermal SMA actuator wire reinfo…
As the semiconductor industry continues to scale feature sizes, scattering from phonons, surfaces, and grain boundaries results in a significant increase in metal interconnect resistivity. In this work, a thin Ag capping layer is used to modify electron–phonon scattering in 20 nm Cu films to reduce the total resistivi…
Stabilization of iron artifacts is focused on desalination than corrosion inhibitors. However artifacts are not condition of desalination treatment must be applied to corrosion inhibitors. But iron artifacts is not representative of inhibitors which drug is most effective qualities have not been identified. Therefore…
The atomic structures and electronic properties of six classical and nonclassical $H_2O$ @ $C_{24}$ fullerene regioisomers are systematically studied using the hybrid density functional B3LYP method and M06-2X method with empirical dispersion in conjunction with the 6-31G(d,p) basis sets. The charge transfer, frontier…
This paper presents a novel impact sensor which can be fabricated with smart paint made of grapheme. This smart nano paint can be easily installed on structures using a spray-on technique and that can make the sensor low cost and practical. The graphene effectively improves the piezoresistivity of the smart paint and…
Abstract Objective: The aim of this study was to examine if the application of Ankaferd Blood Stopper (ABS) reduces the number of sutures and therefore reduces anastomosis completion time in a unilateral end-to-end sleeve fish-mouth anastomosis model.\r\nMethods: Femoral artery end-to-end unilateral fish-mouth anastom…