Başlık için Fizik Bölümü Koleksiyonu listeleme
Toplam kayıt 189, listelenen: 126-145
-
Phase formation characteristics and magnetic properties of bulk Ni2MnGe Heusler alloy
(Elsevier Science Sa, 2015)We have systemically studied the effects of annealing temperature and alloy composition on the structural and magnetic properties of bulk Ni2MnGe and Ni2.1Mn0.9Ge Heusler alloys. We have observed that both annealing ... -
Phase states and thermomorphologic, thermotropic, and magnetomorphologic properties of lyotropic mesophases: Sodium lauryl sulphate-water-1-decanol liquid-crystalline system
(Amer Physical Soc, 2010)Phase states in sodium lauryl sulphate-water-1-decanol lyotropic liquid-crystalline system have been investigated for different temperature ranges. The dependence of triangle phase diagram types, phase boundaries, and ... -
Photoluminescence Properties of a New Sm(III) Complex/PMMA Electrospun Composite Fibers
(Springer/Plenum Publishers, 2020)In this paper, a Sm(III) cluster-based 2D coordination polymer {[Sm(2-stp)center dot 3(H2O)]center dot(H2O)}(n), (where 2-stp = 2-sulfoterephthalate),1has been synthesized hydrothermally and doped into poly(methyl methacrylate ... -
Physical investigations of vanadium oxide thin films on p-Si substrate
(Springer, 2022)In this study, vanadium oxide coated thin films on the p-Si substrate were prepared by the sol-gel method using V2O5 powder as a precursor. The crystal structures, surface morphology, and content of the films were investigated ... -
Piezoelectric and magnetoelectric evaluations on PVDF/CoFe2O4 based flexible nanogenerators for energy harvesting applications
(SPRINGER, 2022)In this study, flexible PVDF/CoFe2O4 based nanogenerators were fabricated using composite fibers which were prepared by combining polyvinylidene difluoride (PVDF) and cobalt ferrite (CoFe2O4) nanoparticles (NPs: similar ... -
Piezoelectric and magnetoelectric properties of PVDF/NiFe2O4 based electrospun nanofibers for flexible piezoelectric nanogenerators
(ELSEVIER, 2022)In this study, flexible piezoelectric nanogenerators (PNGs) were fabricated using the composite fibers which were prepared by combining polyvinylidene difluoride (PVDF) and nickel ferrite (NiFe2O4) nanoparticles (NPs) at ... -
A practical and effective strategy for the thin and uniform carbon layer onto LiCoPO4 cathode surface in terms of the rate capability and cycle stability
(Pergamon-Elsevier Science Ltd, 2016)Nanoscale pure LiCoPO4 and LiCoPO4/C materials were successfully synthesized as excellent quality cathode materials for high-voltage and high energy density lithium-ion applications. These materials are simply produced by ... -
Preparation and Characterization of Urea/Formaldehyde/Rosa Canina sp. Seeds Composites
(Polish Acad Sciences Inst Physics, 2014)Urea-formaldehyde (UF) resin which is one of the most important wood adhesives is a polymeric condensation product of the chemical reaction of formaldehyde with urea, and considered as the most important type of adhesive ... -
Production and characterization of liquid crystal/polyacrylonitrile nano-fibers by electrospinning method
(Springer Link, 2021)We present that high birefringent nematic liquid crystal, 4-n-pentyl-4'-cyanobiphenyl, was incorporated into the polyacrylonitrile precursor which has a strong polar cyano group so as to produce electrospun nano-fibers, ... -
Properties of ZnO layers deposited by ''photo-assisted'' spray pyrolysis
(Elsevier Science Bv, 1996)Layers of ZnO have been deposited onto glass substrates by ''photo-assisted'' spray pyrolysis using zinc chloride and zinc acetate as precursors in aqueous and non-aqueous solutions. The structure of these films has been ... -
PV outdoor tests and 12 years of Mugla experiences
(Wiley-V C H Verlag Gmbh, 2015)In this paper, the electricity yield of photovoltaic power plant applications in the main campus of Mugla Sitki Kocman University, Turkey is presented. There are four small scale grid connected photovoltaic power plants ... -
Quantum Hall effect in a high-mobility two-dimensional electron gas on the surface of a cylinder
(Amer Physical Soc, 2009)The quantum Hall effect is investigated in a high-mobility two-dimensional electron gas on the surface of a cylinder. This special topology leads to a spatially varying filling factor along the current path. The resulting ... -
Raman scattering in layered CdInGaS4
(2004)Raman scattering spectra of CdInGaS4 crystals grown by the chemical transport method were measured at room and liquid-nitrogen temperatures. Band pairs at 29-38, 43-48 and 60-65 $cm^{-1}$ are reported for the first time. ... -
Raman scattering under pressure and the phase transition in epsilon-GaSe
(Wiley-V C H Verlag Gmbh, 2003)Raman scattering in epsilon-GaSe has been investigated at room temperature in a diamond anvil cell by using helium gas as a pressure transmitting medium. The first observation of the solid-solid phase transition under ... -
Real gamma scattering at TESLA x N collider
(2001)The proposal for measurement of polarized gluon and quark distributions in scattering of polarized real y beam on polarized nuclear target have been considered. High energy y beam is obtained by backscattering of laser ... -
Reflective light modulator based on epsilon-GaSe crystal
(Optical Soc Amer, 2002)We report the results of investigating a low-voltage, polarization-insensitive, reflective-type modulator based on an epsilon -GaSe crystal and operated at the 1.960-eV line of a He-Ne laser. We demonstrate that the ... -
Refractive and birefringent properties and order parameter of nematic liquid crystal at the direct and reverse nematic <-> isotropic liquid phase transition
(Natl Inst Optoelectronics, 2016)Temperature dependences of the refractive indices, birefringence and molecular polarizability in large temperature interval and especially in the region of the direct nematic mesophase - isotropic liquid (for the heating ... -
Refractive and birefringent properties of 4-alkyl-4 '-oxycyanobiphenyls at direct and reverse phase transitions
(Taylor & Francis Ltd, 2017)Studies of temperature behavior of the mean refractive index, ordinary and extraordinary refractive indices, and birefringence have been carried out for three nematogens. The thermo-morphologic properties of the biphasic ... -
Regimes of current transport mechanisms in CdS/CdTe solar cells
(Iop Publishing Ltd, 2019)Forward bias recombination (current transport) mechanisms have been evaluated for thin film solar cells and correlated to the in-gap trap levels present. Here CdTe/CdS devices were chosen as an archetypal example of a ... -
Reversible and irreversible effects after oxygen exposure in thick (> 1 mu m) silicon films deposited by VHF-PECVD on glass substrates investigated by dual beam photoconductivity
(Canadian Science Publishing, Nrc Research Press, 2014)Metastability and instability effects due to oxygen exposure in thick intrinsic hydrogenated microcrystalline silicon films deposited by very high frequency plasma enhanced chemical vapour deposition on smooth glass ...