Yayıncı "Springer" Fizik Bölümü için listeleme
Toplam kayıt 55, listelenen: 1-20
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Acceptor formation in Mg-doped, indium-rich GaxIn1-xN: evidence for p-type conductivity
(Springer, 2012)We report on the Mg-doped, indium-rich Ga (x) In1-x N (x < 30). In the undoped material, the intrinsic electron density is very high and as a result there is no detectable photoconductivity (PC) signal within the range of ... -
Adsorption kinetics and isotherm parameters of naphthalene onto natural- and chemically modified bentonite from aqueous solutions
(Springer, 2013)Polycyclic aromatic hydrocarbons (PAHs) have widely been studied and a special concern because of their mutagenic and carcinogenic activities. In this study, natural- and chemically modified-bentonite were characterized ... -
Adsorption of Reactive Black 5 onto quaternized 2-dimethylaminoethyl methacrylate based polymer/clay nanocomposites
(Springer, 2016)[2-(Methacryloyloxy)ethyl]dimethylhexadecylammonium bromide (DMAC16) was synthesized by means of quaternization of 2-dimethylaminoethyl methacrylate with 1-bromohexadecane. Poly(DMAC16) and poly(DMAC16)-bentonite nanocomposites ... -
Barrier lowering effect and dark current characteristics in asymmetric GaAs/AlGaAs multi quantum well structure
(Springer, 2011)In this study, we investigate dark current voltage characteristics of GaAs/AlGaAs staircase-like asymmetric multiquantum well structure at various temperatures experimentally. The activation energy is calculated by using ... -
Buffer effects on the mosaic structure of the HR-GaN grown on 6H-SiC substrate by MOCVD
(Springer, 2017)High-resistive GaN (> 10(8) a"broken vertical bar cm) layers have been grown with different buffer structures on 6H-SiC substrate using metalorganic chemical vapor deposition reactor. Different combination of the GaN/AlN ... -
Catalytic Activity of a Thermoregulated, Phase-Separable Pd(II)-perfluoroalkylphthalocyanine Complex in an Organic/Fluorous Biphasic System: Hydrogenation of Olefins
(Springer, 2009)A fluoroalkene-soluble tetrakis[heptadecafluorononyl]-substituted Pd(II)-phthalocyanine complex has been studied for olefin (styrene, 1-octene, trans-2-octene and cyclohexene) hydrogenation with molecular hydrogen in an ... -
The characterization of electrical properties of Pd-doped LaCrO3 perovskite structure
(Springer, 2018)In the present study, the electrical properties of LCO were explored via substituting the Pd into Cr sites with various mol%. The crystalline morphology of synthesized LaCrO3 and LaCr1 - xPdxO3 (LCPO) (x = 0.05, 0.10, 0.20) ... -
Contactless electron effective mass determination in GaInNAs/GaAs quantum wells
(Springer, 2013)The electron effective masses in n-type modulation doped Ga0.7In0.3NyAs1-y/GaAs quantum wells with nitrogen mole fractions of y = 0.004 and 0.010 were investigated experimentally. Two experimental techniques: magnetic field ... -
Critical trap aspect ratios for dipolar BEC
(Springer, 2011)We show that there exists critical trap aspect ratios for a trapped Bose-Einstein condensate with dipole-dipole interactions. We discuss the role of critical trap aspect ratios on both the critical angular velocity above ... -
Crosslinked Polyphosphazene Nanospheres with Anticancer Quercetin: Synthesis, Spectroscopic, Thermal Properties, and Controlled Drug Release
(Springer, 2018)In this study, novel cross-linked inorganic-organic hybrid polyphosphazene nanospheres were synthesized via self-assembly precipitation polymerization between hexachlorocyclotriphosphazene (HCCP) as a crosslinker molecule ... -
Crystal structure of an alkoxide bridged dinuclear copper(II) complex: mild and selective oxidation of primary and secondary alcohols in water
(Springer, 2018)A water-soluble dinuclear Cu(II) complex, [Cu-2(OOCC6H4Br)(OCH3)(C10H8N2)(2)(ClO4)(2)] (4-bromobenzoic acid = HOOC-C6H4Br; 2-2'-bipyridyl = C10H8N2) was synthesized and characterized by X-ray crystallography. The complex ... -
Crystal structure of an unsymmetrical Schiff base, immobilization of its cobalt and manganese complexes on a silica support, and catalytic studies
(Springer, 2013)An unsymmetrical tetradentate Schiff base (H2L) was synthesized by the reaction of 3-methoxysalicylaldehyde, o-phenylenediamine, and salicylaldehyde in EtOH. H2L was characterized by single-crystallographic X-ray analysis. ... -
Cyano-Bridged Heteropolynuclear Ni(II), Cu(II) and Cd(II) Complexes, [M(deten)(2)Ni(mu-CN)(2)(CN)(2)] (n)
(Springer, 2011)Three new complexes [M(deten)(2)Ni(mu-CN)(2)(CN)(2)] (n) (M = Ni, Cu and Cd, deten = N,N-diethylethylenediamine) have been synthesized and characterized by chemical, thermal analysis, FT-IR and Raman spectroscopies. The ... -
Effect of Cobalt Doping on Nanostructured CuO Thin Films
(Springer, 2014)The growth of cobalt-doped nanostructured CuO thin films using the successive ionic layer adsorption and reaction (SILAR) method is presented. It is found that Co doping considerably influences the structural (X-ray ... -
Effect of salt modification and acid activation on ethylene adsorption properties of sepiolite
(Springer, 2013)The adsorption of ethylene (C2H4) on sepiolite from EskiAYehir, Turkey and on its salt modified forms (NaS, KS, CaS and MgS) and treated with 1, 3 and 5 M HCl solutions (SH, S3H and S5H) was investigated. The sepiolite ... -
Effect of salt modification on thermal behavior, immersion heats and methane adsorption properties of chabazite tuff
(Springer, 2017)In this study, the adsorption of methane (CH4) on chabazite tuff from Bala, Turkey, and that of salt-treated forms (Na+, K+, Li+, Ca2+ and Mg2+) was investigated. Structural and thermal characterization of chabazite samples ... -
The effects of Al doping on the optical constants of ZnO thin films prepared by spray pyrolysis method
(Springer, 2008)Aluminum doped ZnO (AZO) thin films doped with different aluminum concentrations have been prepared by spray pyrolysis method onto glass substrates. The optical and structural properties of the films have been investigated ... -
Effects of different parameters on the synthesis of silica aerogel microspheres in supercritical CO2 and their potential use as an adsorbent
(Springer, 2019)Synthesis of metal oxide microspheres in supercritical carbon dioxide (SCO2) is very attractive for a wide range of applications such as catalysis, controlled release, and separation science due to their identical properties. ... -
Effects of hydrochloric acid treatment on structure characteristics and C2H4 adsorption capacities of nye bentonite from Turkey: a combined FT-IR, XRD, XRF, TG/DTA and MAS NMR study
(Springer, 2016)In this study, a bentonite sample from nye, Turkey was treated with various HCl solutions (0.1, 1.0 and 5.0 M) at 90 A degrees C during 3 and 6 h. X-ray diffraction (XRD), X-ray fluorescence (XRF), differential thermal ... -
Electrochemical synthesis and characterization of a new soluble conducting polymer
(Springer, 2009)Electroactive poly(4-methyl carbazole-3-carboxylic acid) (PMCCA) film was formed on Pt electrode surface by oxidative electropolymerization of a new carbazole derivative. The structure of the soluble polymer was elucidated ...