Güncel Gönderiler: Fizik Bölümü
Toplam kayıt 666, listelenen: 301-320
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Linear trinuclear mixed valance Mn-III-Mn-II-Mn-III complex: Synthesis, crystal structure and characterization
(Taylor & Francis Ltd, 2016)A new linear trinuclear Mn-III-Mn-II-Mn-III complex 1 has been synthesized and characterized by elemental, spectral, X-ray and magnetic analysis. X-ray diffraction studies show that the central Mn-II ion is located at a ... -
Electrical characterisation of poly(methyl methacrylate)/arachidic acid langmuir-blodgett films
(Elsevier Science Sa, 2008)A series of poly(methyl methacrylate) (PMMA) molecules with different molecular weights and arachidic acid has been used to fabricate alternate layer Langmuir-Blodgett (LB) films onto aluminum coated glass substrates and ... -
Electric dipole moments in U(1)' models
(Amer Physical Soc, 2008)We study electric dipole moments of electrons and protons in E(6)-inspired supersymmetric models with an extra U(1) invariance. Compared to the Minimal Supersymmetric Standard Model, in addition to offering a natural ... -
Buffer optimization for crack-free GaN epitaxial layers grown on Si(111) substrate by MOCVD
(IOP Publishing Ltd, 2008)We report the growth of GaN films on the Si(1 1 1) substrate by metalorganic chemical vapour phase deposition (MOCVD). Different buffer layers were used to investigate their effects on the structural and optical properties ... -
Free standing double walled boron nanotubes
(Pergamon-Elsevier Science Ltd, 2008)Based on density functional calculations we propose stable structures of free standing double walled boron nanotubes in the form of two single walled boron nanotubes (SWBNTs) inside one another. Puckering of the boron ... -
Growth of CdS nanoparticles in Y- and Z-type Langmuir–Blodgett thin film using 1,3-bis-(p-iminobenzoic acid) indane
(Springer, 2012)Cadmium sulphide (CdS) nanoparticles were formed in 1,3-bis-(p-iminobenzoic acid)indane by exposing Cd2+ doped Y- and Z-type multilayered Langmuir-Blodgett (LB) films to H2S gas. The growth of CdS nanoparticles were monitored ... -
Fabrication of Langmuir-Blodgett thin films of calix[4]arenes and their gas sensing properties: Investigation of upper rim para substituent effect
(Elsevier Science Bv, 2014)This study reports the characterization and organic vapor sensing properties of Langmuir-Blodgett (LB) thin films of calix[4] arene derivatives that contain different numbers of tert butyl groups on their upper rims. Surface ... -
Crystal structure and photoluminescence properties of a new Cd-II coordination polymer catena-poly[bis[4-bromo-2-({[2-(pyrrolidin-1-yl)ethyl]imino}methyl)phenolato-kappa N-3,N ',O]di-mu(3)-chlorido-di-mu(2)-chlorido-bis(methanol-kappa O)tricadmium(II)]
(Int Union Crystallography, 2016)Schiff base-metal complexes have been used widely as catalysts for many organic reactions, such as ring-opening polymerization and oxidation. In view of the importance of Cd-II coordination polymers and in an effort to ... -
Influence of co:cu ratio on properties of co-cu films deposited at different conditions
(Elsevier Science Bv, 2012)A series of Co-Cu films with different Co:Cu ratio was electrodeposited at different electrolyte pH, deposition potential and film thickness, and their morphology, crystal structure and magnetic properties were investigated. ... -
Stress distribution on the fe based amorphous toroidal transducer core
(Hindawi Publishing Corporation, 2014)The basic principles of sensors are the transmission of energy from one system to another. In general, an electrical signal is produced by the change of a physical property induced by the applied change of a second parameter. ... -
Modeling of vapor sorption in polymeric film studied by surface plasmon resonance spectroscopy
(Academic Press Inc Elsevier Science, 2008)Sorption process by surface plasmon resonance (SPR) was studied by exposing polymeric film made from anthracene labeled poly(methyl methacrylate) (An-PMMA) chains to various concentrations of saturated chloroform vapor. ... -
Characterization of PDPA-b-PDMA-b-PDPA triblock copolymer Langmuir-Blodgett films for organic vapor sensing application
(Taylor & Francis Inc, 2016)This study reports the synthesis, characterization, and gas sensing applications of the PDPA-b-PDMA-b-PDPA triblock copolymer material using NMR, UV-visible spectroscopy, atomic force microscopy (AFM), quartz crystal ... -
Benzene vapor detection using spun poly(methyl methacrylate) thin films
(Amer Scientific Publishers, 2008)A series of poly(methyl methacrylate) (PMMA) polymers of different molecular weights were synthesized using the Emulsifier-Free Emulsion polymerisation method. Using Atomic Force Microscopy (AFM) measurements the film ... -
Synthesis, characterization, antibacterial, and antifungal activities of one-dimensional O-H center dot center dot center dot O hydrogen-bonded Cu(II) and Ni(II) complexes
(Taylor & Francis Inc, 2016)Two Schiff base complexes, [Cu(HL)(2)], 1 and [Ni(HL)(2)], 2 [H2L = 2-((E)-(2-hydroxyethylimino)methyl)-1-naptaphenol] have been synthesized and characterized by elemental analysis, H-1 NMR, C-13 NMR, IR spectroscopy, and ... -
Comparison of Ni-Cu alloy films electrodeposited at low and high pH levels
(Elsevier Science Sa, 2008)Ni-Cu alloy films were potentiostatically electrodeposited from the electrolytes with low pH (2.0) and high pH (3.3) levels. The structural analysis of the films was carried out using the X-ray diffraction (XRD) and scanning ... -
Scattering mechanisms in InN
(Elsevier Science Bv, 2008)The effect of scattering mechanisms on the published Hall electron mobility data has been investigated, in detail, as a function of temperature. The important mechanisms of electron scattering considered are those by charged ... -
Phthalimide thin film for methanol vapor detection
(Amer Scientific Publishers, 2008)The thin film and sensing properties of a novel (N-phthalimido)-p-aminobenzoic acid (FIABA) compound against methanol vapor is investigated using Atomic Force Microscopy (AFM) and Surface Plasmon Resonance (SPR). AFM results ... -
The effect of GaN thickness inserted between two AlN layers on the transport properties of a lattice matched AlInN/AlN/GaN/AlN/GaN double channel heterostructure
(Elsevier Science Sa, 2014)One AlInN/AlN/GaN single channel heterostructure sample and four AlInN/AlN/GaN/AlN/GaN double channel heterostructure samples with different values of the second GaN layer were studied. The interface profiles, crystalline ... -
Organic vapor sensing properties of copolymer Langmuir-Blodgett thin film sensors
(Taylor & Francis Inc, 2016)In this study, a novel poly[Styrene (ST)-co-Glycidyl Methacrylate (GMA)] copolymer material is used to fabricate Langmuir-Blodgett (LB) thin films and investigate organic vapor sensing properties. Quartz Crystal Microbalance ... -
Effects of gamma radiation on tertiary butylhydroquinone and its dosimetric features
(Verlag Z Naturforsch, 2008)The effects of gamma radiation on tertiary butylhydroquinone (TBHQ) are reported using electron spin resonance (ESR) spectroscopy. While unirradiated (control) TBHQ exhibited no ESR signal, irradiated one presented an ESR ...
