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Author

M.A.M Seyam

Bio: M.A.M Seyam is an academic researcher from Ain Shams University. The author has contributed to research in topics: Thin film & Amorphous solid. The author has an hindex of 6, co-authored 8 publications receiving 198 citations.

Papers
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Journal ArticleDOI
M.A.M Seyam1
TL;DR: In this article, the dielectric properties of stoichiometric In 2 Te 3 thin films prepared by thermal evaporation technique onto clean glass substrates using ohmic aluminum electrodes are carried out in the frequency range 10 2 -10 5 ǫ and within the temperature range 300 -400 K.

73 citations

Journal ArticleDOI
TL;DR: In this article, the crystal structure of annealed β-In 2 S 3 thin films with different thickness was investigated by X-ray diffraction technique, and the lattice parameters, crystallite size and microstrain were calculated.

40 citations

Journal ArticleDOI
M.A.M Seyam1
02 Aug 2001-Vacuum
TL;DR: In this paper, the optical constants, the electrical resistivity, as well as the space charge limited currents were studied, and the obtained results indicate that InS thin films have nondirect allowed optical transitions with an energy gap of 1.94 eV.

38 citations

Journal ArticleDOI
01 Jun 2002-Vacuum
TL;DR: In this article, the chemical composition of the bulk material, as-deposited films, and annealed films were determined by energy-dispersive X-ray spectrometry.

32 citations

Journal ArticleDOI
TL;DR: In this article, the electrical properties of nonstoichiometric Sb 2 S 3 bulk form have been investigated using thermal evaporation technique, with different deposition rates (0.5, 2.5 and 6-nm s −1 ).

17 citations


Cited by
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Journal ArticleDOI
TL;DR: In this article, a single source vacuum thermal evaporation method was used to synthesize and deposit indium sulphide thin films on glass substrates and the films were analyzed by X-ray diffraction (XRD) and spectrophotometric measurements.

90 citations

Journal ArticleDOI
28 Oct 2005-Vacuum
TL;DR: In this paper, the authors investigated the properties of Sb 2 Te 3 films in the frequency range 0.4-100 kHz and temperature range 303-373 K. X-ray analysis showed that the as-deposited Sb2Te 3 films are amorphous while the source powder and annealed films showed a polycrystalline nature.

74 citations

Journal ArticleDOI
TL;DR: In this article, the electrical and dielectrical properties of C.I. Basic Violet 10 were investigated using both DC and AC measurements, showing that the DC electrical conductivity of the dye exhibited similar behavior to that of organic semiconductors and the mechanism of the AC conductivity the dye can be attributed to correlated barrier hopping.

73 citations

Book ChapterDOI
01 Jan 2014
TL;DR: In this article, the authors introduce the Maxwell's equations about the electromagnetic field and the Hamiltonian of electron in the electromagnetic fields from which they obtain the formula for light-matter interaction which forms the base for the optical electronics.
Abstract: We first introduce the Maxwell’s equations about the electromagnetic field and the Hamiltonian of electron in the electromagnetic field from which we obtain the formula for light-matter interaction which forms the base for the optical electronics. We discuss the general absorption and emission spectra of nanostructure materials. Major focus of the rest of the chapter is about electron-hole pair, i.e., exciton in nanostructures which is the base for the fast developing nanophotonics.

73 citations