Başlık için Fizik Bölümü Koleksiyonu listeleme
Toplam kayıt 189, listelenen: 67-86
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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 ... -
Improvement effect of the MoO3 interface layer on the p- Si-based Schottky diode
(Springer, 2021)The aim of this study is to compare the effects of the molybdenum trioxide (MoO3) used as an interface layer in a p-type Si-based metal–semiconductor (MS) junction with and without this layer. For this purpose, Al/p-Si and ... -
Improving the performance of inverted polymer solar cells through modification of compact TiO2 layer by different boronic acid functionalized self-assembled monolayers
(Elsevier Science Bv, 2019)In this study, we demonstrate the use of a series of boronic acid functionalized self-assembled monolayers (SAMs) to improve photovoltaic device performance P3HT and PCBM based solar cells. The SAMs treated compact TiO2 ... -
In vitro biocompatibility of plasma-aided surface-modified 316L stainless steel for intracoronary stents
(Iop Publishing Ltd, 2010)316L-type stainless steel is a raw material mostly used for manufacturing metallic coronary stents. The purpose of this study was to examine the chemical, wettability, cytotoxic and haemocompatibility properties of 316L ... -
Indirect dating of an olive tree planting event using luminescence of the sediments lying beneath the roots of the tree: a pilot study in the south-western part of Anatolia, Turkey
(John Wiley and Sons Ltd, 2020)The aim of the present study is to attempt assessing the age of a monumental olive tree located between the Antique Cities of Militus (Didim-Aydın region) and Iasos (Milas-Muğla region). Wood from the trunk of an olive ... -
The influence of diluter system on polymer-stabilised blue-phase liquid crystals
(Taylor & Francis Ltd, 2018)In the present work, diluter effects on the phase transition temperatures and electro-optical properties of the polymer-stabilised blue-phase liquid crystals with microsecond respond time have been carried out. The temperature ... -
Influence of frequency and bias voltage on dielectric properties and electrical conductivity of Al/TiO2/p-Si/p(+) (MOS) structures
(Iop Publishing Ltd, 2008)In this study, the frequency and voltage dependence of the dielectric constant (epsilon'), dielectric loss (epsilon ''), loss tangent (tan delta), electric modulus (M' and M '') and ac electrical conductivity (sigma(ac)) ... -
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 ... -
The influence of series resistance and interface states on intersecting behavior of I-V characteristics of Al/TiO2/p-Si (MIS) structures at low temperatures
(Iop Publishing Ltd, 2008)In this study, we have investigated the intersection behavior of the forward bias current-voltage (I-V) characteristics of the Al/TiO2/p-Si (MIS) structures in the temperature range of 100 300 K. The intersection behavior ... -
Instability effects in hydrogenated microcrystalline silicon thin films
(Wiley-V C H Verlag Gmbh, 2010)Instability effects on the dark conductivity (sigma(Dark)) and photoconductivity (sigma(photo)) of microcrystalline silicon films with different microstructures deposited on smooth and rough substrates, after exposure to ... -
Interaction-mediated asymmetries of the quantized Hall effect
(Epl Association, European Physical Society, 2009)Experimental and theoretical investigations on the integer quantized Hall effect in gate-defined narrow Hall bars are presented. At low electron mobility the classical (high-temperature) Hall resistance line R(H)(B) cuts ... -
Interdependence of absorber composition and recombination mechanism in Cu(In,Ga)(Se,S)(2) heterojunction solar cells
(Amer Inst Physics, 2002)Temperature-dependent current-voltage measurements are used to determine the dominant recombination path in thin-film heterojunction solar cells based on a variety of Cu(In,Ga)(Se,S)(2) alloys. The activation energy of ... -
Interface Effects of Annealing Temperatures in Al/HfO2/p-Si (MIS) Structures
(Gazi Univ, 2017)In this study, Al/HfO2/p-Si (MIS) structures were prepared by using the sol-gel method for three different annealing temperatures. The current-voltage (I-V) and capacitance-voltage (C-V) characteristics of these structures ... -
Investigation of datasheet provided temperature coefficients of photovoltaic modules under various sky profiles at the field by applying a new validation procedure
(Pergamon-Elsevier Science Ltd, 2020)In this study, datasheet provided temperature coefficients of commercially available photovoltaic modules were investigated by taking into account the actual performance parameters (output peak power, short-circuit current ... -
Investigation of heat capacities of proteins by statistical mechanical methods
(Elsevier Science Bv, 2007)In this study additional heat capacity of the proteins in water dissociation have been investigated by statistical mechanical methods. For this purpose, taking electric field E and total dipole moment M as thermodynamical ... -
Investigation of light induced degradation in hydrogenated amorphous silicon-germanium alloy thin films using temperature dependent photoconductivity
(Wiley-V C H Verlag Gmbh, 2010)Light induced degradation of undoped hydrogenated amorphous silicon-germanium (a-SiGe:H) alloys with different Ge contents has been investigated using intensity and temperature dependence of photoconductivity between 78K ... -
Investigation of meta- and in-stability effects in hydrogenated microcrystalline silicon thin films by the steady-state measurement methods
(Canadian Science Publishing, Nrc Research Press, 2014)Metastability effects because of atmospheric exposure, high purity gasses, and deionized water in hydrogenated microcrystalline silicon thin films with different crystalline volume fractions were studied using well accepted ... -
Investigation of metastability and instability effects on the minority carrier transport properties of microcrystalline silicon thin films by using the steady-state photocarrier grating technique
(Canadian Science Publishing, Nrc Research Press, 2014)Metastability effects in hydrogenated microcrystalline silicon thin films due to air, high purity nitrogen, helium, argon, and oxygen were investigated using temperature-dependent dark conductivity, photoconductivity, and ... -
Investigation of Phase States, Thermo-Morphologic, Magneto-Morphologic and Refractive Properties of Mesophases in Dodecyltrimethyl Ammonium Bromide - Water Lyotropic Liquid Crystalline System
(Carl Hanser Verlag, 2016)We report the phase states in dodecyltrimethyl ammonium bromide/water (DDTMABr-H2O) lyotropic liquid crystalline system. The temperature-concentration phase diagram of this system has been determined. Isotropic micellar ... -
Investigation of temperature dependent dc current transport mechanism on Au/poly(4-vinyl phenol)/p-Si device
(Iop Publishing Ltd, 2009)In this study, temperature dependent current-voltage (I-V) measurements and investigation of the dc current transport mechanism of Au/poly(4-vinyl phenol)/p-Si device have been performed. While the series resistance value ...
