Yayın tarihi için Fizik Bölümü listeleme
Toplam kayıt 191, listelenen: 21-40
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Embedded atom method-based geometry optimization aspects of body-centered cubic metals
(2013)We present embedded atom method-based geometry optimization calculations for Fe, Cr, Mo, Nb, Ta, V and W body-centered cubic metals with Finnis - Sinclair potentials. After the optimization, we determine their typical ... -
Optimizing the organic solar cell efficiency: Role of the active layer thickness
(2013)A 2-dodecyl benzotriazole and 9,9-dioctylfluorene containing alternating conjugated polymer, poly((9,9-dioctylfluorene)-2,7-diyl-(4,7-bis(thien-2-yl) 2-dodecyl-benzo[1,2,3]triazole)) (PFTBT), was blended with PCBM (1:1, ... -
The main electrical and interfacial properties of benzotriazole and fluorene based organic devices
(2013)Electrical and interfacial properties of ITO/PEDOT:PSS/poly((9,9-dioctylfluorene)-2,7-diyl(2-dodecyl-benzo[1,2,3]triazole)) (PFTBT)/Au devices were investigated using current-voltage (I-V), capacitance-voltage (C-V) and ... -
A benchmark for some bulk properties of bcc iron
(Multi-Science Publishing Co. Ltd, 2013)Some bulk properties of bcc iron were calculated. Structural and elastic properties such as cohesive energy, bulk modulus, typical elastic constants and vacancy formation energy were calculated for zero Kelvin temperature. ... -
Geometry optimization calculations for the elasticity of gold at high pressure
(2013)We present embedded atom method based geometry optimization aspects of pressure effect on some elastic and mechanical properties of gold. During study, we determined the pressure dependency of equilibrium volume, typical ... -
Dielectric and electrical properties of an organic device containing benzotriazole and fluorene bearing copolymer
(2013)Dielectric and electrical properties of a benzotriazole and fluorene copolymer were investigated using current-voltage (I-V), capacitance-voltage (C-V), and conductance-voltage (G/w-V) measurements at room temperature. The ... -
Benzotriazole and benzodithiophene containing medium band gap polymer for bulk heterojunction polymer solar cell applications
(John Wiley and Sons Inc., 2014)An alternating donor‐acceptor copolymer based on a benzotriazole and benzodithiophene was synthesized and selenophene was incorporated as π‐bridge. The photovoltaic and optical properties of polymer were studied. The ... -
ALD TiO2 thin film as dielectric for Al/p-Si Schottky diode
(Indian Academy of Sciences, 2014)Electrical analysis of Al/p-Si Schottky diode with titanium dioxide (TiO2) thin film was performed at room temperature. The forward and reverse bias current-voltage (I-V) characteristics of diode were studied. Using ... -
High pressure elastic properties of wurtzite aluminum nitrate
(Physical Society of the Republic of China, 2014)Aluminum nitrate is an indisputable material for current optoelectronic technology. Although much scientific effort has been devoted to understand the ground state elastic properties of aluminum nitrate, little is known ... -
UV light activated gas sensor for NO2 detection
(Elsevier Ltd, 2014)In the present study, UV light activated gas sensor was investigated for Al/Al2O3/p-Si and Al/TiO2/Al2O3/p-Si samplesby atomic layer deposition method (ALD). Generally, in order to obtain the sensing performance, traditional ... -
Leakage current by Frenkel-Poole emission on benzotriazole and benzothiadiazole based organic devices
(Elsevier Ltd, 2014)In this study three different organic semiconductors were used in the fabrication of ITO/PEDOT:PSS/Polymer:PCBM/LiF/Al configuration. Reverse current density-voltage (Jr-V) measurements of the samples were investigated to ... -
High pressure phase transition and elastic behavior of europium oxide
(National Institute of Optoelectronics, 2014)We report the questionable high pressure structural and elastic characteristics of europium oxide (EuO) up to 50 GPa with shell model potential framework by geometry optimization calculations. We determined B1→B2 phase ... -
Phase transition and elasticity of gallium arsenide under pressure
(Universidade Federal de Sao Carlos, 2014)Geometry optimization calculations were performed for some structural, elastic and mechanical properties of gallium arsenide (GaAs) under pressures up to 25 GPa. In contrast to previous works, a recent Stillinger-Weber ... -
Magnetism and microstructure characterization of phase transitions in a steel
(2014)We present phase transitions in a low carbon steel according to existing phases and their magnetism. Scanning electron microscope employed research to clarify and evaluate the microstructural details. Additionally, we ... -
Analysis of temperature dependent current-conduction mechanisms in Au/TiO2/n-4H-SiC (metal/insulator/semiconductor) type Schottky barrier diodes
(American Institute of Physics Inc., 2014)In order to determine the effective current-conduction mechanisms in Au/TiO2/n-4H-SiC (metal-insulator semiconductor) type Schottky barrier diodes (SBDs), their current-voltage (I-V) measurements were carried out in the ... -
Investigation on dielectric properties of atomic layer deposited Al 2O3 dielectric films
(2014)Al/Al2O3/p-Si Schottky barrier diodes (SBDs) were fabricated using atomic layer deposition technique in order to investigate dielectric properties of SBDs. For this purpose, admittance measurements were conducted at room ... -
Magnetic nanoparticles for plasmid DNA purification through hydrophobic interaction chromatography
(Taylor and Francis Inc., 2014)Magnetic poly(2-hydroxyethyl methacrylate-co-N-methacryloyl–L-phenyl alanine), p(HEMA-co-MAPA) nanoparticles were produced by emulsion polymerization technique. The nanoparticles were characterized by zetasizer, atomic ... -
Molecular Structure Analyses of some crystals containing aromatic-structured acids by x-ray diffraction method and quantum mechanical calculations
(2015)Aromatic-structured acids and their complexes are having with biological importance, in particular molecules which are used in the food industry due to enzymatic activity and antimicrobial properties. In this study, crystal ... -
Silafluorene-based polymers for electrochromic and polymer solar cell applications
(John Wiley and Sons Inc., 2015)In this study, four novel silafluorene (SiF) and benzotriazole (Btz) bearing conjugated polymers are synthesized. In the context of electrochemical and optical studies, these polymers are promising materials both for ... -
Elastic and mechanical properties of hexagonal diamond under pressure
(Springer Verlag, 2015)Hexagonal diamond is the harder and stiffer alternative of traditional cubic diamond for today’s technology. Although several theoretical attempts have been performed to understand the ground-state elastic properties of ...