22 Result(s)

Article

Impedance spectroscopy and transport mechanism of molybdenum oxide thin films for silicon heterojunction solar cell application

A comprehensive study is reported for temperature-dependent current–voltage (I–V–T), capacitance–voltage (C–V–T), and impedance spectroscopy measurements carried out in the temperature range of 289–413 K for A...

M. M. Makhlouf, Hani Khallaf, M. M. Shehata in Applied Physics A (2022)

Article

Thermal annealing impact on structural, optical and dispersion parameters of zinc tetrapyridylporphyrin as a potential absorber thin film for energy conversion and storage devices

Thermally evaporated of zinc 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphine (ZnTPyP) organic thin films have been successfully prepared and investigated. X-ray diffraction patterns of fresh grown and annealed Zn...

M. M. Makhlouf, M. M. Shehata, H. A. Alburaih… in Optical and Quantum Electronics (2021)

Article

Optical solitons to birefringent fibers for coupled Radhakrishnan–Kundu–Lakshmanan model without four-wave mixing

The article investigates optical soliton to Radhakrishnan–Kundu–Lakshmanan (RKL) equation in birefringent fibers which involving two component form for vector solitons in telecommunication system. The optical ...

Aly R. Seadawy, M. Bilal, M. Younis, S. T. R. Rizvi… in Optical and Quantum Electronics (2021)

Article

Raman spectroscopy and optical constants of nanostructured oxovanadium(IV) tetraphenylporphyrin thin films

Oxovanadium(IV) tetraphenylporphyrin (VOTP) thin films were prepared by thermal evaporation technique. The structural investigation and surface morphology of the VOTPP films were characterized by X-ray diffrac...

M. M. Makhlouf in Applied Physics A (2021)

Article

Conservation laws, optical molecules, modulation instability and Painlevé analysis for the Chen–Lee–Liu model

In this paper, we will compute the conservation laws (CLs) of Chen–Lee–Liu equation (CLLE) with the help of scaling invariance technique. We will use Euler and Homotopy operators for the evaluation of conserve...

Aly R. Seadawy, Syed T. R. Rizvi, Ijaz Ali… in Optical and Quantum Electronics (2021)

Article

Exploring illumination effect on the impedance spectroscopy and dielectric dispersion of 5, 10, 15, 20-tetrakis(4-methoxyphenyl)-21H, 23H-porphine cobalt(II)/silicon heterojunction photovoltaic

The dynamic properties of a hybrid heterojunction based on a small molecule of 5, 10, 15, 20-tetrakis (4-methoxyphenyl)-21H, 23H-porphine cobalt(II), CoTMPP, grown onto p-Si wafer have been studied using impedanc...

M. M. Makhlouf, M. M. Shehata in Journal of Materials Science: Materials in Electronics (2020)

Article

Electrical and Photovoltaic Responses of an Au/Coumarin 337/n-Si/Sb-Au Hybrid Organic–Inorganic Solar Cell

Thin films of coumarin 337 (C-337) dye were fabricated on n-type silicon (111) wafer using a high-vacuum thermal evaporation technique. Investigation of their structure using x-ray diffraction analysis and scanni...

Ahmed M. Nawar, M. M. Makhlouf in Journal of Electronic Materials (2019)

Article

Facile synthesis, characterizations, and impedance spectroscopic features of Zn(II)-bis Schiff base complex films towards photoelectronic applications

Complexation of Zn²⁺ with pyridyl Schiff base (ZnL₂) was synthesized. The ZnL₂ was examined and characterized using the elemental analysis, NMR, IR, UV-Vis, and mass spectra. ZnL₂ was formed within 1:2 molar rati...

M. M. Shehata, M. S. S. Adam, K. Abdelhady… in Journal of Solid State Electrochemistry (2019)

Article

The effect of long term aging on the structural and optical properties of nano metallo-tetraphenylporphine films

Thickness of 200 nm of NiTPP film is prepared by thermal evaporation technique under vacuum 10⁻⁶ torr as a candidate of nano metallo-tetraphenylporphine to study long aging. The prepared films are amorphous in na...

A. El-Denglawey, M. M. Makhlouf, M. Dongol… in Journal of Materials Science: Materials in… (2015)

Article

Electrical conduction mechanisms and dielectric constants of nanostructured methyl violet 2B thin films

The uniform thin films of methyl violet 2B, MV2B, with thicknesses ranged from 96 to 300 nm, have been successfully prepared by spin coating technique. X-ray diffraction showed that the powder and pristine thi...

H. M. Zeyada, M. M. Makhlouf in Applied Physics A (2015)

Article

Authors’ reply to reply of discussion on “nucleation mechanism of eutectic phases in aluminum-silicon hypoeutectic alloys”

S. Shankar, M. M. Makhlouf in Metallurgical and Materials Transactions A (2006)

Article

Authors’ reply

S. Shankar, Y. W. Riddle, M. M. Makhlouf in Metallurgical and Materials Transactions A (2005)

Article

Focused ion beam milling: A practical method for preparing cast Al-Si alloy samples for transmission electron microscopy

S. Shankar, Y. W. Riddle, M. M. Makhlouf in Metallurgical and Materials Transactions A (2003)

Article

Grain growth at the free surface of WC-Co materials

The grain growth rate at the free surface of a WC-Co material was measured at different high temperatures and the microstructure and elemental composition of the material were characterized at various stages o...

J. M. Olson, M. M. Makhlouf in Journal of Materials Science (2001)

Article

Characterization of the kinetic and mechanistic differences between free-surface and bulk grain growth in WC-Co materials

The rate of grain growth at different high temperatures in the bulk and at the free surface of a WC-Co substrate was measured. The microstructure, phase evolution, and elemental composition at the free surface...

J. M. Olson, M. M. Makhlouf in Metallurgical and Materials Transactions A (2001)

Article

The role of silicon in wetting and pressureless infiltration of SiCp preforms by aluminum alloys

Silicon plays an important role in the production of Al/SiC metal matrix composites. As an alloying element in aluminum, silicon retards the kinetics of the chemical reactions that result in the formation of t...

M. I. Pech-Canul, R. N. Katz, M. M. Makhlouf, S. Pickard in Journal of Materials Science (2000)

Article

Optimum parameters for wetting silicon carbide by aluminum alloys

The effect of magnesium and silicon additions to aluminum, free silicon on the SiC substrate, nitrogen gas in the atmosphere, and process temperature on the wetting characteristics of SiC by aluminum alloys ar...

M. I. Pech-Canul, R. N. Katz, M. M. Makhlouf in Metallurgical and Materials Transactions A (2000)

Article

Processing of Al–SiCp Metal Matrix Composites by Pressureless Infiltration of SiCp Preforms

An optimum method for producing Al-SiC_p metal matrix composites was developed by determining the optimum conditions for wetting SiC by aluminum and the optimum parameters for pressureless infiltration of SiC_p pre...

M. I. Pech-Canul, M. M. Makhlouf in Journal of Materials Synthesis and Processing (2000)