Yayın tarihi için Makale Koleksiyonu listeleme
Toplam kayıt 186, listelenen: 41-60
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Elastic and mechanical properties of cubic diamond under pressure
(Physical Society of the Republic of China, 2015)We report on some structural, elastic, and mechanical properties of cubic diamond under pressures up to 500 GPa. Unlike existing theoretical works, the second-generation reactive bond order (REBO) potential was used for ... -
Synthesis of a benzotriazole bearing alternating copolymer for organic photovoltaic applications
(Royal Society of Chemistry, 2015)A low band gap donor–acceptor (D–A) copolymer PTBTBDT, namely, poly(2-dodecyl-4,7-di(thiophen-2-yl)-2H-benzo[d][1,2,3]triazole-alt-4,8-bis(2-ethylhexyloxy)benzo[1,2-b:4,5-b′]dithiophene), was designed and synthesized via ... -
Crystal structure of rac-3-hydroxy-2-(p-tolyl)-2,3,3a,4,7,7a-hexahydro-1H-4,7-methanoisoindol-1-one
(International Union of Crystallography, 2015)In the title compound, C16H17NO2, the cyclohexene ring adopts a boat conformation, and the five-membered rings have envelope conformations with the bridging atom as the flap. Their mean planes are oriented at a dihedral ... -
The effect of ultraviolet irradiation on the ultra-thin HfO2 based CO gas sensor
(American Institute of Physics Inc., 2015)In this work, an effort has been made to fabricate ultrathin HfO2/Al2O3 sample by atomic layer deposition method for the fast detection of CO gas at room temperature. The effect of the operating temperature and the UV light ... -
On the negative capacitance behavior in the forward bias of Au/n–4H–SiC (MS) and comparison between MS and Au/TiO2/n–4H–SiC (MIS) type diodes both in dark and under 200 W illumination intensity
(World Scientific Publishing Co. Pte Ltd, 2015)In order to see the effect of interfacial layer on electrical characteristics both Au/n-4H- SiC (MS) and Au/TiO<inf>2</inf>/n-4H-SiC (MIS) type Schottky barrier diodes (SBDs) were fabricated and their main electrical ... -
Theoretical prediction of the structural, elastic, mechanical and phonon properties of bismuth telluride under pressure
(World Scientific Publishing Co. Pte Ltd, 2015)Bismuth telluride (Bi2Te3) is one of the most intricate materials with its semiconducting, insulating and pressure-induced superconducting properties. Although different theoretical works have been carried out to understand ... -
Electrical properties and hyperfine interactions of boron doped Fe3O4 nanoparticles
(Academic Press, 2015)The single spinel phase nano-structured particles of FeBxFe2-xO4 (x = 0.1, 0.2, 0.3, 0.4 and 0.5) were synthesized by the glycothermal method and the effect of B3+ substitution on structural and dielectric properties of ... -
Frequency and voltage dependence of electric and dielectric properties of Au/TiO2/n-4H-SiC (metal-insulator-semiconductor) type Schottky barrier diodes
(Institute of Physics Publishing, 2015)The main electrical and dielectric properties of Au/TiO2/n-4H-SiC (MIS) type Schottky barrier diodes (SBDs) have been investigated as functions of frequency and applied bias voltage. We believe that the use of high dielectric ... -
CO2 gas detection properties of a TIO2/Al2O3 heterostructure under UV light irradiation
(Institute of Physics Publishing, 2015)Al/TiO2/p-Si and Al/TIO2/Al2O3/p-Si samples were prepared using the atomic layer deposition method (ALD) and their gas sensing properties were investigated. The electrical properties of the samples were studied using a two ... -
Al/Al2o3/P-Si yapısının Co gaz algılama özellikleri
(Gazi Üniversitesi, 2015)Bu çalışmada Al/Al2O3/p-Si yapısının gaz algılama özellikleri incelenmiştir. Al2O3 metal oksit yapısı atomik tabaka biriktirme (ALD) metoduyla üretilmiştir. Üretilen yapının farklı sıcaklıklar (300-450K) ve farklı CO gaz ... -
Oleylamine surface functionalized FeCoyFe2- yO4 (0.0≤y≤1.0) nanoparticles
(Elsevier B.V., 2016)In this study, oleylamine (OAm) capped FeCo y Fe2- y O4 (0.0≤y≤1.0) nanocomposites (NCs) were prepared via a polyol route. Effect of Co3+ ion substitution on structure, morphology and magnetic properties of Fe3O4 nanoparticles ... -
Study on the reverse bias carrier transport mechanism in Au/TiO2/n-4H-SiC structure
(American Scientific Publishers, 2016)In this paper we examine the reverse bias carrier transport mechanism in Au/TiO2/n-4H-SiC structure. The current-voltage-temperature (IR-V-T) plots have been investigated in the temperature range of 200-380 K. Experimental ... -
Elastic and related properties of Si under hydrostatic pressure calculated using modified embedded atom method
(Institute of Physics Publishing, 2016)Although several theoretical works were performed to describe the high pressure behavior of typical cubic elastic constants of cubic diamond silicon (dc-Si), some of the obtained results of these studies still remain ... -
Structural, magneto-optical properties and cation distribution of SrBixLaxYxFe12-3xO19 (0.0≤x≤0.33) hexaferrites
(Elsevier Ltd, 2016)SrBixLaxYxFe12-3xO19 (00.0≤x≤0.33) hexaferrites were produced via sol-gel auto combustion. XRD patterns show that all the samples are single-phase M-type strontium hexaferrite (SrM). The magnetic hysteresis (σ-H) loops ... -
Magnetic and dielectric properties of Bi3+ substituted SrFe12O19 hexaferrite
(Elsevier B.V., 2016)In the present study, SrBixFe12−xO19 (0.0≤x≤1.0) nanomaterials were successfully synthesized by using chemical co-precipitation method. Products were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy ... -
Microstructure, hyperfine interaction and magnetic transition of Fe-25%Ni-5%Si-x%Co alloys
(Springer International Publishing, 2016)Morphological and magnetic properties in Fe-25%Ni-5%Si-x%Co (x = 0, 10, 15) alloys are investigated. Scanning electron microscopy (SEM), Mössbauer spectroscopy and AC magnetic susceptibility measurements are used to determine ... -
Synthesis and characterization of oleylamine capped MnxFe1-xFe2O4nanocomposite: Magneto-optical properties, cation distribution and hyperfine interactions
(Elsevier Ltd, 2016)Pure Fe3O4 NPs and Oleylamin (OAm) capped MnxFe1-xFe2O4 (MnxFe1-xFe2O4@OAm) (0.2 ≤ x ≤ 1.0) nanocomposites (NCs) were synthesized by the polyol route. Lattice parameter increases with increasing Mn2+ concentration, due to ... -
Sr1-xLaxFe12O19 (0.0≤x≤0.5) hexaferrites: Synthesis, characterizations, hyperfine interactions and magneto-optical properties
(Elsevier Ltd, 2016)A simple sol-gel auto combustion process was used to synthesize La3+ substituted M-type strontium hexaferrite, Sr1-xLaxFe12-xO19 (0.0≤x≤ 0.5). Structural, magnetic, and optical behavior as a function of La3+ substitutions ... -
Microwave, dielectric and magnetic properties of Mg-Ti substituted Ni-Zn ferrite nanoparticles
(Elsevier Ltd, 2016)Mg-Ti substituted Ni-Zn spinel ferrites (Ni0.5Zn0.5MgxTixFe2−2xO4, where 0.05≤x≤0.25) have been prepared by conventional solid state reaction method. 1 wt% B2O3 was added to increase the crystal growth at low temperatures. ... -
Effect of bimetallic (Ni and Co) substitution on magnetic properties of MnFe2O4 nanoparticles
(Elsevier Ltd, 2016)Nickel and cobalt substituted manganese ferrite nanoparticles (NPs) with the chemical composition NixCoxMn1–2xFe2O4 (0.0?x?0.5) NPs were synthesized by one-pot microwave combustion route. The effect of co-substitution (Ni, ...