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Articles 1 - 30 of 61
Full-Text Articles in Physics
Effect Of Left-Handed Materials In Surface Plasmon Excitation And Propagationlength, Ari̇f Engi̇n Çeti̇n
Effect Of Left-Handed Materials In Surface Plasmon Excitation And Propagationlength, Ari̇f Engi̇n Çeti̇n
Turkish Journal of Physics
We investigated the dispersion relation of surface plasmons (SPs) excited in a medium comprised of a left-handed material (LHM) layer. We investigated different light polarizations in SP excitation along an LHM-metal interface. We studied SP excitation through a classical Kretschmann geometry, employing an LHM interlayer between a dielectric and a metal layer. Using this three-layer configuration, we investigated the effect of LHM medium on characterizing SP propagation length, which is directly related to the energy of the surface waves.
Modified Newton's Gravitational Law From Deformed Poisson Bracket, Ch'ng Han Siong
Modified Newton's Gravitational Law From Deformed Poisson Bracket, Ch'ng Han Siong
Turkish Journal of Physics
In this paper, we obtain the modified Newton's gravitational law from deformed Poisson bracket motivated by the generalized uncertainty principle. The modified Newton's gravitational law that we obtain contains a term that plays an important role only in the regime of first order in $\bar{\beta}$. In the ordinary situation or condition, the modified Newton's gravitational law reduces to the conventional Newton's gravitational law.
Lorentz-Violating Effects In Single W Boson Production At The Lhc, Serdar Spor, İnanç Şahi̇n
Lorentz-Violating Effects In Single W Boson Production At The Lhc, Serdar Spor, İnanç Şahi̇n
Turkish Journal of Physics
We investigate the Lorentz-violating effects of Standard Model Extension (SME) in single W boson production process pp → pγp → p W- q' X at the Large Hadron Collider (LHC). We employ the Weizsacker-Williams approximation for photons emitted from one of the incoming proton beams and consider γq → W- q' as a subprocess in the proton-proton collision. The behavior of the differential cross-section for various orientations of the constant background fields is obtained by taking into account longitudinal and transverse polarization states of the final W bosons.
Enhanced Efficiency Of Cds/P3ht Hybrid Solar Cells Via Interfacial Modification, Sali̇h Yilmaz, İsmai̇l Polat, Murat Tomaki̇n, Ahmet Ünverdi̇, Emi̇n Bacaksiz
Enhanced Efficiency Of Cds/P3ht Hybrid Solar Cells Via Interfacial Modification, Sali̇h Yilmaz, İsmai̇l Polat, Murat Tomaki̇n, Ahmet Ünverdi̇, Emi̇n Bacaksiz
Turkish Journal of Physics
The present paper examines the effects of surface modification of CdS with diverse dyes on fabricated CdSbased hybrid solar cells. The X-ray diffraction results showed that CdS thin films had a hexagonal phase with a preferred orientation along the (101) plane. Scanning electron microscopy indicated that the CdS specimen was composed of a granular structure while a P3HT layer was formed from tiny grains. Band gaps of the CdS thin films and the P3HT layer were 2.45 eV and 1.98 eV, respectively. The absorption spectra showed that different dye loading caused an increase in the absorbance of CdS thin films …
On Memory Effect In Modified Gravity Theories, Ercan Kiliçarslan
On Memory Effect In Modified Gravity Theories, Ercan Kiliçarslan
Turkish Journal of Physics
In this work, we discuss the gravitational memory effect in higher derivative and infinite derivative gravity theories and give the detailed relevant calculations whose results were given in our recent works. We show that the memory effect in higher derivative gravity takes the same form as in pure GR at large distances, whereas at small distances, the results are different. We also demonstrate that, in infinite derivative gravity, the memory is reduced via error function as compared to Einstein's gravity. For the lower bound on the mass scale of nonlocality, the memory essentially reproduces the usual GR result at distances …
Determination Of Effective Resonance Energies For The $^{185}$Re(N,$\Gamma )^{186}$Re And $^{187}$Re(N,$\Gamma )^{188}$Re Reactions By Cadmium Ratio Method, Mustafa Güray Budak
Determination Of Effective Resonance Energies For The $^{185}$Re(N,$\Gamma )^{186}$Re And $^{187}$Re(N,$\Gamma )^{188}$Re Reactions By Cadmium Ratio Method, Mustafa Güray Budak
Turkish Journal of Physics
The effective resonance energy ($\bar{E}_{r})$ values for the $^{185}$Re(n,$\gamma )^{186}$Re and $^{187}$Re(n,$\gamma )^{188}$Re reactions were measured by using the cadmium ratio method. $^{197}$Au and $^{98}$Mo isotopes were selected as dual monitors to determine the epithermal neutron spectrum shape factor in the irradiation sites of a 37 GBq $^{241}$Am-Be neutron source. The analytical grade rhenium(VII) oxide samples were diluted with Al$_{2}$O$_{3}$ powder to reduce neutron self-shielding effects, and they were put into 1-mm thick small cylindrical polytetrafluoroethylene (PTFE) boxes. Samples were irradiated in a $^{241}$Am-Be neutron source. The activation produced in the irradiated samples was measured in close-counting geometry on the …
Electroweak Decays Of Unflavored Mesons In Poincaré Covariant Quark Model, Vadzim Haurysh, Viktor Andreev
Electroweak Decays Of Unflavored Mesons In Poincaré Covariant Quark Model, Vadzim Haurysh, Viktor Andreev
Turkish Journal of Physics
This work presents the procedure for obtaining integral representation of the radiative decay constant in the Poincaré-covariant quark model, based on Poincaré-invariant quantum mechanics. In the course of the work the authors give numerical estimates of magnetic moments of the light quarks ($u,d,s$) from the $V\rightarrow P\gamma$ decay, based on the calculation method of the observer that was previously developed. This technique is generalized in the case of the decay $P\rightarrow V\gamma$ with further numerical calculation of mixing angles $\eta-\eta^{\prime}$ of pseudoscalar mesons. Within the framework of the offered approach, we obtain a self-consistent model that describes radiative and leptonic …
Effect Of Low-Temperature Oxidation On The Properties Of Tivn/Vn Multilayer Coatings, Merve Ertaş Uslu, Özge Doğan, Leyla Çolakerol Arslan
Effect Of Low-Temperature Oxidation On The Properties Of Tivn/Vn Multilayer Coatings, Merve Ertaş Uslu, Özge Doğan, Leyla Çolakerol Arslan
Turkish Journal of Physics
An extensive study of the surface oxidation process on the properties of TiVN/VN multilayer coatings deposited by RF magnetron sputtering on Mg alloys was performed. TiVN/VN multilayer coatings with a total thickness of 660 nm and different layer numbers of 5, 11, and 33 were oxidized by annealing at 450K under partial oxygen pressure. Electronic, mechanical, and tribological properties of these coatings were characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscope, nanoindentation measurements, and scratch tester. The experimental results showed that the oxidation of TiVN/VN multilayer coatings leads to better performance in terms of surface roughness, hardness, and wear. …
Total Sunspot Number Calculation Based On Flare Production Potential Of Sunspot Groups: Reconstruction Of Ssn And Its Relation To Some Geomagnetic Indices, Ahmet Burak Karslioğlu, Burçi̇n Dönmez, Ali̇ Kilçik
Total Sunspot Number Calculation Based On Flare Production Potential Of Sunspot Groups: Reconstruction Of Ssn And Its Relation To Some Geomagnetic Indices, Ahmet Burak Karslioğlu, Burçi̇n Dönmez, Ali̇ Kilçik
Turkish Journal of Physics
In this study, we modified the previously introduced X-ray flare production potential (FPP) of each modified Zurich sunspot group based on its X-ray flare peak flux. Then, using these FPPs, the daily total sunspot number (Zurich number) calculation equation was modified; thus, new sunspot number data (CRz) were produced. We also compared ISSN and CRz with some geomagnetic indices (Dst, the maximum CME speed, and Ap indices). We found that the CRz data describe the geomagnetic indices quite well compared to ISSN. By using the regression equation between CRz and the sunspot area, the CRz dataset was recalculated back to …
The Effect Of Phenylboronic Acid-Based Self-Assembled Monolayers On Theperformance Of Organic Field-Effect Transistors (Ofets), Tuğbahan Yilmaz Aliç
The Effect Of Phenylboronic Acid-Based Self-Assembled Monolayers On Theperformance Of Organic Field-Effect Transistors (Ofets), Tuğbahan Yilmaz Aliç
Turkish Journal of Physics
The dielectric/semiconductor interface is one of the most important components strongly affecting the performance of organic field-effect transistors (OFETs). To improve OFET parameters, we applied a series of phenylboronic acid derivatives as self-assembly molecules between dielectric and organic semiconductor layers. Device performance parameters, especially threshold voltage, current on/off ratio, and subthreshold slope, were improved. To elucidate the mechanism, dielectric/semiconductor interfaces were analyzed using atomic force microscope and contact angle techniques.
Nonlinear Frequency Conversion Of Light Inside A Microcavity, Emre Yüce
Nonlinear Frequency Conversion Of Light Inside A Microcavity, Emre Yüce
Turkish Journal of Physics
Changing the color of light in a small mode volume is essential for applications that require on-chip operation. Microcavities are profound structures given their property to confine light in a small mode volume. Here, I numerically investigate the frequency conversion of light in a microcavity and show that the frequency converted light intensity is distinguished from an open medium such as an optical fiber or a nonlinear crystal. I observe that the frequency converted light intensity increases with increased rate of change of the refractive index of the microcavity. Notably, this study shows that the intensity of the frequency converted …
Method For Determination Of Water Hammer Conditions And Consequences Inpressurizers Of Nuclear Reactors, Vladimir Skalozubov, Oleg Chulkin, Denis Pirkovskiy, Igor Kozlov, Yuriy Komarov
Method For Determination Of Water Hammer Conditions And Consequences Inpressurizers Of Nuclear Reactors, Vladimir Skalozubov, Oleg Chulkin, Denis Pirkovskiy, Igor Kozlov, Yuriy Komarov
Turkish Journal of Physics
Results of known experimental and computed studies of conditions for water hammers (WHs) in reactor pressurizers are analyzed. It is found that when emergency opening of pilot-operated safety valves of the pressurizers of nuclear reactors happens, WHs can be generated on pressurizer elements, and amplitudes of hydrodynamic load pulses significantly override the limiting values. An original method for determination of the WH conditions and consequences in the case of emergency filling of the pressurizers of nuclear reactors is proposed. Unlike the traditional Joukowski formula, the presented method considers the key features and effects of the WH conditions and consequences in …
Application Of The Fractional Oscillator Model To Describe Damped Vibrations, Sergo Rekhviashvili, Arsen Pskhu, Praveen Agarwal, Shilpi Jain
Application Of The Fractional Oscillator Model To Describe Damped Vibrations, Sergo Rekhviashvili, Arsen Pskhu, Praveen Agarwal, Shilpi Jain
Turkish Journal of Physics
We consider a model of damped vibrations based on fractional differentiation. The model given is completely consistent with the classical model of vibration with viscous damping. We find the relation between the order of fractional differentiation in the equation of motion and Q-factor of an oscillator. The proposed approach seems more appropriate for the physical nature of the described system. The experiment with a vibrating piezoelectric plate, performed as part of the study, showed good agreement with the model and confirmed that the fractional oscillator model can be used to describe strongly damped vibrations.
Effect Of Annealing Temperature On Structural, Electrical, And Uv Sensingcharacteristics Of N-Zno/P-Si Heterojunction Photodiodes, Şenol Kaya
Turkish Journal of Physics
The aim of this study is to investigate the influences of annealing temperature on initial device characteristics and their correlations with ultraviolet (UV) radiation sensitivity of n-type zinc oxide/p-silicon (n-ZnO/p-Si) heterojunction photodiodes. Evolutions on the crystalline structure, surface morphology, ideality factor, barrier potential, interface state density, and donor concentration were systematically analyzed during the initial device characterizations before testing the UV sensitivities of the photonic devices. The results demonstrate that the sensitivity of each n-ZnO/p-Si photodiode annealed at various temperatures was linearly correlated with different UV illumination intensities. The devices annealed at 750 ºC and 550 ºC exhibit more sensitive …
Determination Of Fluence Rate Distribution In A Multilayered Skin Tissue Model Byusing Monte Carlo Simulations, Hali̇l Arslan, Bahar Pehli̇vanöz
Determination Of Fluence Rate Distribution In A Multilayered Skin Tissue Model Byusing Monte Carlo Simulations, Hali̇l Arslan, Bahar Pehli̇vanöz
Turkish Journal of Physics
Information on light-tissue interaction is important for clinical applications of lasers. The Monte Carlo technique is one of the commonly used methods to simulate photon propagation and to describe energy absorption in biological tissues. In this study, fluence rate distributions of 633 nm and 830 nm light inside a multilayered skin tissue model have been investigated by using two different simulation software programs: GAMOS tissue optics plug-in and MCML. Results of the plug-in for the fluence rate distributions are in very good agreement with the ones from MCML for both of the wavelengths. This shows that GAMOS tissue optics plug-in …
The Ground State Of Pentaquarks With Cluster Structure In The Few-Body Systemapproach, Zari Binesh, Mohammad Reza Shojaei, Behnam Azadegan
The Ground State Of Pentaquarks With Cluster Structure In The Few-Body Systemapproach, Zari Binesh, Mohammad Reza Shojaei, Behnam Azadegan
Turkish Journal of Physics
In this study, an analytical model is presented based on the Nikiforov-Uvarov method for the Θ+ exotic KN resonance as a kind of pentaquark. The radial Schrödinger equation for the central Yukawa and modified Yukawa potentials was solved for Θ+ by use of the Nikiforov-Uvarov method. The energy eigenvalues and corresponding wave functions of Θ+ were obtained in terms of potential coefficients and n,l quantum numbers. Finally, the potential coefficients were determined according to the binding energy of Θ+ exotic KN resonance. The potentials and wave functions of Θ+ exotic KN resonance for different sets of potential coefficients are also …
The Novel Synthesis And Luminescence Studies Of Cuo And Fe2 O3 Embedded(8-Hydroxyquinoline)Zinc Nanocomposites, Abraham Kutticheril Eapen, Paulose Thomas
The Novel Synthesis And Luminescence Studies Of Cuo And Fe2 O3 Embedded(8-Hydroxyquinoline)Zinc Nanocomposites, Abraham Kutticheril Eapen, Paulose Thomas
Turkish Journal of Physics
The present study investigates the synthesis of novel luminescent polymer nanocomposite through the incorporation of CuO and Fe2 O3 into a C18 H12 N2 O2 Zn host polymer matrix. The observed green electroluminescence behavior originates mainly from the shift in the HOMO-LUMO energy gap of the polymer matrix caused by the inclusion of oxidized metal/oxygen ions from the incorporated metal oxides into the pyridyl and phenyl groups of the host polymer. The existence of oxidized metal/oxygen ionic states in the polymer matrix is successfully confirmed through X-ray photoelectron spectroscopic analysis. The FTIR analysis is utilized to verify the presence of …
Ab Initio Study Of Li2 Cata2 O7 Compound: Electronic And Optical Properties Forthree Phases, Murat Ayci̇bi̇n
Ab Initio Study Of Li2 Cata2 O7 Compound: Electronic And Optical Properties Forthree Phases, Murat Ayci̇bi̇n
Turkish Journal of Physics
The Li2 CaTa2 O7 compound belongs to the Ruddlesden-Popper family of layered perovskites. First principle approximation was used to investigate the electronic band structure and optical properties of the compound for three phases. Independent of the studied compound's structural type, Li2 CaTa2 O7 has semiconductor behavior and direct transition. In addition, the forbidden energy band gap of the compound decreases with rising temperature, as expected. Furthermore, the 3d orbital of Ca contributes to the conduction band due to the crystal field effect. Moreover, the optical response of the chosen axes of the compound to incoming electromagnetic rays varies with phase …
Dispersive Parameters Of Oxidized Pva-Pvp Blend Films, Goputta Veena, Blaise Lobo
Dispersive Parameters Of Oxidized Pva-Pvp Blend Films, Goputta Veena, Blaise Lobo
Turkish Journal of Physics
Oxidized (ox) polyvinyl alcohol (PVA)-polyvinyl pyrrolidone (PVP) blend films were prepared by solution casting technique, with doping levels of the oxidizer, potassium permanganate (KMnO4) , varying from 0.01 up to 4.70 weight percent (wt.%). Optical (UV-Vis) spectral measurements in the wavelength range varying from 190 nm to 1000 nm were used to extract the band gap information and to calculate various optical parameters of the ox-PVA-PVP blend films. The electronic transitions on absorption of photons of suitable energy are of indirect allowed type. The corresponding optical band gap (Eg) has been determined. Optical dispersion parameters for ox-PVA-PVP films were determined …
Analytical Solution Of D-Dimensional Radial Schrödinger Equation For Sexticpotential By The Extended Nikiforov-Uvarov Method And Biconfluent Heunpolynomials, Hasi̇be Hale Karayer
Analytical Solution Of D-Dimensional Radial Schrödinger Equation For Sexticpotential By The Extended Nikiforov-Uvarov Method And Biconfluent Heunpolynomials, Hasi̇be Hale Karayer
Turkish Journal of Physics
D-dimensional radial Schrödinger equation (SE) for sextic potential is solved using the extended Nikiforov-Uvarov method analytically. Energy eigenvalue and eigenfunction solutions are achieved systematically. It is also presented that the D-dimensional radial SE is transformed to biconfluent Heun equation (BHE). Therefore the eigenfunction solutions for the potential are attained in terms of biconfluent Heun polynomials when the condition of existence of polynomial solution of BHE is provided simultaneously.
Reverse-Engineered Scalar Fields In A D-Dimensional Framework, Mustafa Salti, Oktay Aydoğdu, Hi̇lmi̇ Yanar
Reverse-Engineered Scalar Fields In A D-Dimensional Framework, Mustafa Salti, Oktay Aydoğdu, Hi̇lmi̇ Yanar
Turkish Journal of Physics
We are motivated to investigate the dynamics of scalar field dark energy proposals and focus on the reconstruction of a scalar field problem in a D-dimensional framework. With this purpose, we implement a correspondence between the tachyonic scalar field formulation and the additional dimensional cosmological scenario. Such connections help us to redefine the extra dimensional dynamics of the selected scalar field prescription.
Precise Calculation Of Differential Cross Sections For The Z Boson Plus Jetsproduction In Proton-Proton Collisions At A Center-Of-Mass Energy Of 13 Tev, Kadi̇r Öcalan
Turkish Journal of Physics
The differential cross section predictions for the associated production of a Z boson and jets are presented in proton-proton collisions at a center-of-mass energy of 13 TeV. The differential cross sections are calculated by using a computational framework for the dielectron decay mode of the Z boson. Higher-order differential cross section predictions are obtained in the fiducial phase space and are compared at next-to-leading order (NLO) and next-to-NLO (NNLO) in perturbative quantum chromodynamics (pQCD). The predicted results are reported as functions of the variables including the jet multiplicity, the invariant mass of the Z boson, and transverse momenta of the …
Pseudoscalar Higgs Boson Pair Production At A Photon-Photon Collision In Thetwo Higgs Doublet Model, Mehmet Demi̇rci̇
Pseudoscalar Higgs Boson Pair Production At A Photon-Photon Collision In Thetwo Higgs Doublet Model, Mehmet Demi̇rci̇
Turkish Journal of Physics
In this study, the direct pair production of the pseudoscalar Higgs boson at a γγ collision is analyzed in the context of the two Higgs doublet model (THDM), taking into account the complete one-loop contributions. In order to illustrate the effect of the new physics, four benchmark point scenarios, which are consistent with theoretical and current experimental constraints, are chosen in the type-I THDM with an exact alignment limit. The effect of individual contributions from each type of one-loop diagram on the total cross-section is examined in detail. The dependence of the cross-section on the center-of-mass energy is also presented …
First Photometric Investigation Of Some Asas Binary Systems, Burak Ulaş
First Photometric Investigation Of Some Asas Binary Systems, Burak Ulaş
Turkish Journal of Physics
We present the first light curve solutions of the four binary systems observed and catalogued by the All Sky Automated Survey (ASAS) program. The light curves are analyzed by using PHOEBE software, which is based on the Wilson?Devinney method. The light curve parameters are derived and the estimated physical parameters are calculated from the result of the analyses. We compare our targets to well-known binaries of similar type on the Hertzsprung-Russell diagram and mass-radius plane. The evolutionary states of the components are also discussed.
The Behaviour Of The Diamagnetic Current Modified Mri In Different Rotationprofiles, Suzan Doğan
The Behaviour Of The Diamagnetic Current Modified Mri In Different Rotationprofiles, Suzan Doğan
Turkish Journal of Physics
Magnetohydrodynamic turbulence driven by magnetorotational instability (MRI) has been widely accepted as an efficient mechanism for transporting angular momentum radially outward in the discs. Previously, we have shown the triggering effect of the magnetization currents and the gradients produced by these currents on MRI for Keplerian discs. In this work, we examine the properties of the diamagnetic current modified MRI for the discs where the epicyclic frequencies deviate from Keplerian behaviour. We show that the diamagnetic effect modifies the instability both for an increasing and for a decreasing angular momentum with radius. The novel unstable region produced by magnetization effects …
Second-Order Gauge-Invariant Perturbation Theory And Conserved Charges Incosmological Einstein Gravity, Emel Altaş Ki̇raci
Second-Order Gauge-Invariant Perturbation Theory And Conserved Charges Incosmological Einstein Gravity, Emel Altaş Ki̇raci
Turkish Journal of Physics
Recently a new approach in constructing the conserved charges in cosmological Einstein gravity was given. In this new formulation, instead of using the explicit form of the field equations, a covariantly conserved rank-four tensor was used. In the resulting charge expression, instead of the first derivative of the metric perturbation, the linearized Riemann tensor appears along with the derivative of the background Killing vector fields. Here we give a detailed analysis of the first-order and the second-order perturbation theory in a gauge-invariant form in cosmological Einstein gravity. The linearized Einstein tensor is gauge-invariant at the first order but it is …
Ab Initio Atomistic Thermodynamics Modeling Of Adsorption Of Oxygen On Goldand Gold-Silver Surfaces, Mehmet Gökhan Şensoy
Ab Initio Atomistic Thermodynamics Modeling Of Adsorption Of Oxygen On Goldand Gold-Silver Surfaces, Mehmet Gökhan Şensoy
Turkish Journal of Physics
A theoretical study of oxygen adsorption on gold and gold-silver surfaces by means of density functional theory (DFT) calculations with an atomistic thermodynamic model is performed. The (111) and (211) facets of gold and gold-silver alloy surfaces are considered, and their stabilization is discussed upon adsorption of oxygen depending on O and Ag coverage. The details of how the DFT-based atomistic thermodynamic model can apply to the transition metal surface are also presented in this work.
Two-Dimensional Ti2c Monolayer (Mxene): Surface Functionalization, Inducedmetal, Semiconductor Transition, Berna Akgenc
Two-Dimensional Ti2c Monolayer (Mxene): Surface Functionalization, Inducedmetal, Semiconductor Transition, Berna Akgenc
Turkish Journal of Physics
Recently, two-dimensional (2D) transition metal carbides and nitrides known as MXenes, have gained a lot of attention because of their tunable electronic and magnetic properties depending on surface functionalization. In the present work, the structural, electronic, and magnetic properties of both T and H phases of bare Ti2C and fully surface terminated Ti2 CT2 (T = -F, = O, -OH) are calculated using a set of first principles calculations. The ground state structures of Ti2 CT2 are computed in two and four different configurations for both H and T phases, respectively. We demonstrate that while H phase of Ti2C exhibits …
A Hard X-Ray Self-Amplified Spontaneous Emission Free-Electron Laser Optimization Using Evolutionary Algorithms For Dedicated User Applications, Di̇dem Ketenoğlu, Gazi̇ Erkan Bostanci, Ayhan Aydin, Bora Ketenoğlu
A Hard X-Ray Self-Amplified Spontaneous Emission Free-Electron Laser Optimization Using Evolutionary Algorithms For Dedicated User Applications, Di̇dem Ketenoğlu, Gazi̇ Erkan Bostanci, Ayhan Aydin, Bora Ketenoğlu
Turkish Journal of Physics
Accelerator-based fourth-generation light sources are utilized in a wide range of interdisciplinary applications such as nanotechnology, materials science, biosciences, and medicine. A hard X-ray free-electron laser (FEL), as a state-of-the-art light source, was optimized using evolutionary algorithms for dedicated user applications such as X-ray Raman scattering (XRS), resonant inelastic X-ray scattering (RIXS), and X-ray emission spectroscopies (XES). Optimal parameter sets were obtained for an in-vacuum planar undulator driven by an 8 GeV electron beam. Performance parameters of self-amplified spontaneous emission (SASE) operation (i.e. optimized SASE performance parameters through evolutionary algorithms) were found to be consistent with operating X-ray FEL facilities …
Tuning The Electrical And Morphological Characteristics Of Pedot:Pss Films Through Mixed Cosolvent Addition And Performance Of Their Polymer Solar Cells, Çi̇sem Kirbiyik
Tuning The Electrical And Morphological Characteristics Of Pedot:Pss Films Through Mixed Cosolvent Addition And Performance Of Their Polymer Solar Cells, Çi̇sem Kirbiyik
Turkish Journal of Physics
This work aimed to reveal the influence of premixed cosolvent addition to low conductive PEDOT:PSS solution and how the optimized thin film conductivity develops. PEDOT:PSS thin films were obtained by addition of EG and MeOH cosolvent mixture (8, 10, and 15 v/v.%) and the morphological, electrical, optical, and bandgap properties of the films obtained were characterized by different techniques. The addition of mixed cosolvent can effectively control the grain size distribution and thus the conductivity. The optical characterization results revealed that the bandgap decreased with increasing volume of mixed cosolvent. The conductivity characteristics showed that the addition of 10% v/v.% …