Browsing Yayın Koleksiyonu by Issue Date
Now showing items 21-40 of 40
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Tunable electronic structure and structural transition of GaAs clusters at high pressure and temperature
(ELSEVIER SCIENCE SA, 2019)In this study, the electronic structure and structural transition of the GaAs clusters with different compositions were examined by quantum chemical calculations for the first time. The GaAs clusters exhibit highly interesting ... -
Use of 2D In2Se3 Single Crystal as a Diaphragm Material for Fabry-Perot Fiber Optic Acoustic Sensors
(AMER SCIENTIFIC PUBLISHERS, 2019)The diaphragm-based sensor tip, which has a critical design in Fabry-Perot fiber optic acoustic sensor production, directly affects device performance. Fabry-Perot fiber optic acoustic sensors tip designs and investigations ... -
A study of structural phase transitions and optoelectronic properties of perovskite-type hydride MgFeH3: ab initio calculations
(IOP PUBLISHING LTD, 2019)In this study, the structural phase transition and optoelectronic properties of perovskite-hydride MgFeH3 under high pressure have been performed by ab initio calculations based on GGA-PBE functional. The phase transitions ... -
Structural and electronic properties of BiOF with two-dimensional layered structure under high pressure: Ab initio study
(PERGAMON-ELSEVIER SCIENCE LTD, 2019)In this work, the crystal structure of the BiOF is studied under high hydrostatic pressure using ab initio calculations. Pressure-volume relationships and structural transitions are investigated using Siesta method. A ... -
Characterization, optical and nonlinear optical properties of TAZ organic material
(ELSEVIER GMBH, 2019)Since organic materials have applications in many fields, characterization and optical parameters of 3-(Bipheny1-4-y1)-5-(4-tert-butylpheny1)-4-phenyl-4H-1,2,4-triazole (TAZ) molecule have been investigated in different ... -
Experimental and theoretical studies of the structural, electronic and optical properties of BCzVB organic material
(ELSEVIER GMBH, 2019)1,4-Bis[2-(3-N-ethylcarbazoryl)-vinyl]benzene (BCzVB) organic molecule in different solvents have been performed to explore its electronic structure and photophysical properties using solution technique and quantum chemistry ... -
The Experimental Validation of Designed Fiber Optic Pressure Sensors With EPDM Diaphragm
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2019)This paper focused on the experimental validation of diaphragm-based Fabry-Perot fiber optic pressure sensors (D-FP-FOPS) with ethylene propylene diene terpolymers (EPDM) diaphragm as designed and analyzed sensor tip ... -
An Ab-initio Study of Structural and Electronic Properties of CaTe under High Pressure
(MAIK NAUKA/INTERPERIODICA/SPRINGER, 2019)The crystal structure of the CaTe compound is studied up to 150 GPa under high hydrostatic pressure using the density functional theory (DFT) with the generalized gradient approximation (GGA). Pressure-volume relationships, ... -
Structural, electronic, elastic and vibrational properties of two dimensional graphene-like BN under high pressure
(Elsevier Ltd, 2019)The structural, electronic, elastic and vibrational properties of boron nitride (BN) were analyzed using ab initio computational methods based on density functional theory. The exchange-correlation energy functional was ... -
Enhancement of electronic, photophysical and optical properties of 5,5 '-Dibromo-2,2 '-bithiophene molecule: new aspect to molecular design
(ELSEVIER SCIENCE BV, 2019)The aims of this study were to enhance electronic, photophysical and optical properties of molecular semiconductors. For this purpose, the isomers of the B-doped molecule (5,5'-Dibromo-2,2'-bithiophene) have been investigated ... -
Spectral analysis for photoacoustic pressure sensor designs: Theoretical model improvement and experimental validation
(ELSEVIER SCIENCE SA, 2019)In the pulsed laser photoacoustic (PA) detection and spectroscopy applications, the fundamental frequency of the PA signal produced, and the sensor resonance frequency should be as close as possible to each other so that ... -
Optimal power flow using artificial bee colony, wind driven optimization and gravitational search algorithms
(Institute of Electrical and Electronics Engineers Inc., 2019)In this study, artificial bee colony, wind driven optimization and gravitational search algorithms are employed in order to solve the optimal power flow problem. The proposed optimization approaches are tested on the ... -
Comparison of theoretical and experimental electronic and optoelectronic properties of HPS compound
(Institute of Physics Publishing, 2019)We investigated electronic and optoelectronic properties of 1,1,2,3,4,5-Hexaphenyl-1H-silole (HPS) compound for different concentrations and for theoretical (B3LYP and CAM) and experimental methods. Optical parameters such ... -
A study of structural, electronic, elastic, phonon properties, and transition mechanism of wurtzite CdTe under high pressure
(Elsevier, 2020)Ab initio computational methods based on density functional theory to study the structural, electronic, elastic and phonon properties of Cadmium Telluride (CdTe) were applied. SIESTA method was used for calculations with ... -
Structural evolution, mechanical, electronic and vibrational properties of high capacity hydrogen storage TiH4
(Elsevier Ltd, 2020)Titanium tetra hydride is considered for hydrogen storage purposes. Firstly, formation energy, hydrogen desorption temperature and gravimetric hydrogen density of TiH4 is computed. Secondly, an ab initio constant pressure ... -
Ab-initio study of structural, electronic, elastic, phonon properties, and phase transition path of sodium selenite
(Elsevier B.V., 2020)The effects of pressure on structural, elastic, electronic, and vibrational properties of NaSe are studied using the SIESTA method. The dimensionless ratio, bulk modulus, elastic constants, Shear and Young modulus, and ... -
Hydrogen storage properties, structural analysis, elastic and electronic properties of K2PdH4
(AIP Publishing, 2021)Density functional theory is adopted to study phase transitions and structural, elastic, and electronic properties of hydrogen storage K2PdH4. First, the structural evolution of K2PdH4 is investigated under high pressure ... -
Phase transitions, elastic and electronic properties of hydrogen storage Na2PdH4
(American Institute of Physics Inc., 2021)Hydrogen can be absorbed by some materials at specific pressures and temperatures. This is extremely important in terms of creating carbon-free and sustainable society. In this work hydrides are good candidates to fulfill ... -
Investigation of mechanical properties of KCaH3 and KSrH3 orthorhombic perovskite hydrides under high pressure for hydrogen storage applications
(Springer Science and Business Media Deutschland GmbH, 2022)First principles calculations have been adopted to explore ground-state and high-pressure properties of KCaH3 and KSrH3 orthorhombic perovskite hydrides for the purpose of solid-state hydrogen storage. Formation enthalpies ... -
Dual-Band Patch Antenna with Simple Rectangular Shaped Slots for Local Area Networks
(Springer, 2022)In this study, a coplanar waveguide fed patch antenna is proposed for Wireless Local Area Network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) operations. To obtain multiband functionality and tune ...
