Fizik Bölümü Koleksiyonu: Recent submissions
Now showing items 1-20 of 189
-
Electrical and photoresponse properties of metal–polymer–semiconductor device with TMPTA interface material
(Springer, 2023)is study presents the pioneering fabrication of a metal–polymer–semiconductor (MPS) device, where trimethylolpropane triacrylate (TMPTA) was employed as the interface material for the first time. TMPTA offers significant ... -
Tuning the magnetic and magnetocaloric properties of a compound via mixing (1–x).La0.67Ca0.33MnO3 +x.La0.67Sr0.33MnO3 (x = 0, 0.25, 0.50, 0.75, 1): Composite materials or composite compounds?
(Elsevier B.V., 2023)This study aims to optimize the magnetic and magnetocaloric properties of composite materials (or compounds) produced by mixing different ratios of two manganite compounds having different structural, magnetic, and ... -
Improved photoluminescence properties of one-dimensional (1D) composite fibers of Ho@PVP and Yb@PVP prepared by electrospinning
(PERGAMON-ELSEVIER SCIENCE LTD, 2023)Two new Holmium3+ and Ytterbium3+ compounds, {Ho(4cba)3(phen)(H2O)} (1) and {Yb(4cba)3(phen)} (2) (4cba = 4-Cyanobenzoic acid, phen = 1,10-Phenanthroline) were synthesized. These compounds were then incorporated into a ... -
A comparative study of magnetic, and magnetocaloric properties of different transition metal-doped La0.67Sr0.33AO3 (A: Mn, Co, Cr, and Fe) samples
(Springer, 2023)In the present work, structural, magnetic, and magnetocaloric properties of La0.67Sr0.33AO3 (A: Mn, Co, Cr and Fe) samples were examined. XRD analyses revealed that all samples produced by the sol–gel method and subjected ... -
A comparative study on electrospun fibers of cyanobiphenyl liquid crystal homologues
(TAYLOR & FRANCIS INC, 2023)Cyanobiphenyl homologues are important liquid crystals to use in some applications since they exhibit intrinsic properties in a certain temperature interval including room temperature. Recently, generating composites with ... -
The native and metastable defects and their joint density of states in hydrogenated amorphous silicon obtained from the improved dual beam photoconductivity method
(American Institute of Physics Inc., 2023)In this study, undoped hydrogenated amorphous silicon (a-Si:H) thin films deposited under moderate dilution ratios of silane by radio frequency plasma-enhanced chemical vapor deposition (RF-PECVD) have been investigated ... -
Electrochemical Properties of Coumarin 500 Encapsulated in a Liquid Crystal Guided Electrospun Fiber Core and Their Supercapacitor Application
(AMER CHEMICAL SOC, 2022)Here, we first report a study on coumarin 500 and liquid crystal including polyacrylonitrile nanofibers in terms of synthesis, characterizations, and supercapacitor performances. SEM, POM, FTIR, and DSC measurements showed ... -
The electrical characterization of metal–insulator–semiconductor device with β-naphthol orange interface
(Springer, 2022)his study was formed by the β-naphthol orange/p-Si metal–insulator–semiconductor (MIS) structure by obtaining β-naphthol orange on the p-Si surface using the sol–gel and spin-coating techniques. FTIR, EDX, and NMR analyzes ... -
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 ... -
Electrospun fibers of liquid crystal mixtures
(SPRINGER, 2022)Electrospinning is a powerful and promising technique in production of nano-materials namely nano-fibers. Nano-sized materials show properties apart from their macroscopic/bulk sizes, and enable us to fabricate materials ... -
Influence of illumination intensity on the electrical properties of Al/NOA65/p-Si/Al heterojunction MPS device
(Springer, 2022)In this work, we report photodiode behavior on metal polymer semiconductor device with photopolymer interfacial layer for the first time. For this purpose, Al/NOA65/p-Si device was fabricated and the electric and dielectric ... -
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 ... -
The investigation of the effect of K doping on the structural, magnetic, and magnetocaloric properties of La1.4-xKxCa1.6Mn2O7 (0.0 <= x <= 0.4) double perovskite manganite
(SPRINGER, 2022)In this study, the effect of potassium doping on the morphological, crystallographic, magnetic and magnetocaloric properties of La1.4Ca1.6Mn2O7 double perovskite produced by the sol-gel wet chemical method was investigated. ... -
Understanding the Origin of Thermal Annealing Effects in Low-Temperature Amorphous Silicon Films and Solar Cells
(WILEY-V C H VERLAG GMBH, 2022)A detailed investigation of the effects of prolonged postdeposition annealing on the performance of amorphous silicon (a-Si:H) solar cells and the properties of individual a-Si:H layers that are fabricated at low temperature ... -
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 ... -
Numerical and experimental investigation of a solar absorber extension tube with turbulators for upgrading the performance of a solar dryer
(EMERALD GROUP PUBLISHING LTD, 2022)Purpose During the past several years, research and studies in the field of solar energy have been continuously increased. One of the substantial applications of solar energy is related to industrial utilization for the ... -
Temperature Dependent Current Transport Mechanism of Photopolymer Based Al/NOA60/p-Si MPS Device
(SPRINGER, 2022)A photopolymer based Al/Norland Optical Adhesive 60 (NOA60)/p-Si MPS (metal-polymer-semiconductor) device was fabricated by a combination of vacuum evaporation and smear technique. The current transport properties of the ... -
Optical refracting properties, birefringence and order parameter in mixtures of liquid crystals: Direct smectic A - Isotropic and reverse isotropic - Smectic A phase transitions
(Elsevier, 2022)Due to the physical anisotropic and self-assembling nature, liquid crystalline materials holdvery important place in theoretical, experimental and applied physics. Besides, liquid crystals are important materials as working ... -
Effect of Sintering Time on the Crystallisation, Morphology, Structure, Electric, Magnetic and Magnetocaloric Properties of La0.80Ag0.20MnO3
(SPRINGER, 2021)The effects of sintering time -(t(S)) on the morphology, structure and magnetic properties of -La0.80Ag0.20MnO3 manganite perovskite investigated. The main purpose of the study was to explore the possibility of increasing ... -
NOA61 photopolymer as an interface for Al/NOA61/p-Si/Al heterojunction MPS device
(Springer, 2021)The effect of the NOA61 photopolymer organic interlayer on the electrical and dielectric properties of the Al/NOA61/p-Si/Al metal-polymer-semiconductor (MPS) device has been reported the first time. The device parameters ...
