Search Results - "Abdel Gawad, Sayed"

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    Spectroscopic, NBO, DFT, and TD-DFT investigation of 7-(Dimethylamino)-4-(Trifluoromethyl)Coumarin (C152) by Abdel Gawad, Sayed A., El-Daly, Samy A., Sakr, Mahmoud A. S.

    Published in Molecular Crystals and Liquid Crystals (24-03-2023)
    “…In different solvents, the electronic UV-Vis absorption and emission spectra of 7-(Dimethylamino)-4-(Trifluoromethyl)Coumarin (C152) were monitored. For the…”
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    Journal Article
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    2,5-Bis(5-tert-butyl-benzoxazole-2-yl) thiophene (BTBB): spectroscopic behavior, dipole moment, laser behavior, DFT and TD-DFT investigations by Sakr, Mahmoud A. S., El-Daly, Samy A., Abdel Gawad, Sayed A.

    Published in Molecular Crystals and Liquid Crystals (24-03-2023)
    “…In various solvents, the experimental electronic UV-Vis absorption and emission spectra of 2,5-Bis(5-tert-butyl-benzoxazole-2-yl) thiophene (BTBB) were…”
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    Journal Article
  4. 4

    Photophysical, photochemical and laser behavior of some diolefinic laser dyes in sol–gel and methyl methacrylate/2-hydroxyethyl methacrylate copolymer matrices by Sakr, Mahmoud A.S., Abdel Gawad, El-Sayed A., Abou Kana, Maram T.H., Ebeid, El-Zeiny M.

    Published in Optics and laser technology (01-08-2015)
    “…The photophysical properties such as singlet absorption, molar absorptivity, fluorescence spectra, dipole moment, fluorescence quantum yields, fluorescence…”
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    Journal Article
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    Laser performance and investigation of the optimal density functional and the dependence of the basis sets for (E, E)-2,5-bis (3,4-dimethoxystyryl) pyrazine (BDP) molecule by Sakr, Mahmoud A. S., Gawad, Sayed A. Abdel, El-Daly, Samy A., Kana, Maram T. H. Abou, Ebeid, El-Zeiny M.

    Published in Journal of molecular modeling (01-09-2021)
    “…This manuscript includes some photophysical parameters and some optical properties such as absorption and emission spectra of the (E, E)-2,5-bis…”
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    Journal Article
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    RETRACTED ARTICLE: Optical, photo-physical and photo-stability characterizations of malachite green as a laser dye, combined with TD-DFT simulations by Ghazy, Ahmed R., Abotalb, Diana. F., Kenawy, El-Refaie, Ghazy, R., Abdel Gawad, Sayed A.

    Published in Optical and quantum electronics (2024)
    “…The optical properties of Malachite green (Mg) dye were examined experimentally, including absorption, optical energy gab, refractive index, dielectric…”
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    Journal Article
  8. 8

    Photophysical and TDDFT investigation for (E, E)-2, 5-bis [2-(4-(dimethylamino)phenyl) ethenyl]pyrazine (BDPEP) laser dye in restricted matrices by Sakr, Mahmoud A.S., Abdel Gawad, Sayed A., El-Daly, Samy A., Abou Kana, Maram T.H., Ebeid, El-Zeiny M.

    Published in Journal of molecular structure (05-10-2020)
    “…The Photophysical parameters such as fluorescence quantum yield (Φf), oscillator strength (f), radiative decay rate constant (kr), change of dipole moment from…”
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    Journal Article
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    Laser Performance of Some Oxazole Laser Dyes in Restricted Matrices by Sakr, Mahmoud A. S., Abdel Gawad, Sayed A., Abou Kana, Maram T. H., Ebeid, El-Zeiny M.

    Published in Journal of fluorescence (01-07-2017)
    “…This article reports the optical properties such as absorption profile, molar absorptivity, fluorescence profile and photo-physical parameters such as dipole…”
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    Journal Article
  10. 10

    Photo-Physical Characteristics of Janus Green B in Different Solvents and its Interaction Mechanism with Silver Nanoparticles by Gawad, Sayed A Abdel, Ghazy, R, Mansour, S, Ahmed, Hala, Ghazy, Ahmed R

    Published in Journal of fluorescence (22-05-2024)
    “…This work explores the effects of solvent polarity on Janus Green B (JGB) photophysical properties. The Lippert-Mataga, Billot, and Ravi equations were…”
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    Journal Article
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    Temperature dependence characterization of metal–insulator–nonuniformly-doped semiconductor solar cell by Shaban, Mahmoud, El-Sayed, M. Abdel-Gawad

    Published in Applied surface science (30-09-2008)
    “…Four layered metal–insulator–pp + semiconductor MIS solar cell device was simulated using a comprehensive numerical model. The semiconductor layer was assumed…”
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    Journal Article Conference Proceeding
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    Assessment of the efficacy of thymol against Toxocara vitulorum in experimentally infected rats by Shehata, Olfat, Aboelhadid, Shawky M., Arafa, Waleed M., Moawad, Usama K., Hussien, Khaled H., Ali, Mona Ibrahim, El-Ashram, Saeed, Gawad, Samah Sayed Abdel, Abdel-Aziz, Sahar Abdel Aleem

    Published in Journal of parasitic diseases (01-06-2022)
    “…The effect of thymol and ivermectin on the development and embryonation of Toxocara vitulorum ( T. vitulorum ) eggs, as well as their migration in albino rats…”
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    Journal Article
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    Determination of the refractive index of air and its variation with temperature and pressure using a Mach–Zehnder interferometer by Shaheen, Mohamed E., Abdelhameed, Salma T., Abdelmoniem, N. M., Hashim, Hisham M., Ghazy, Riyad A., Abdel Gawad, Sayed A., Ghazy, Ahmed R.

    Published in Journal of optics (New Delhi) (01-07-2024)
    “…In this study, we determined the refractive index of the air at different pressures and temperatures using a home-built Mach–Zehnder interferometer. The…”
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    Journal Article
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    Spectroscopic investigation, DFT and TD-DFT calculations of 7-(Diethylamino) Coumarin (C466) by Gawad, Sayed A. Abdel, Sakr, Mahmoud A.S.

    Published in Journal of molecular structure (15-01-2022)
    “…[Display omitted] •UV-Vis electronic absorption and excited-emission spectra of the 7-(Diethylamino) Coumarin.•The effect of solvent polarity on fluorescence…”
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    Journal Article
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    Optimization of arbitrarily doped MINP + solar cell performance by El-Sayed, Mohamed Abdel-Gawad, Abdel-Rady, Mohamed Abbas

    Published in Renewable energy (01-05-1998)
    “…A comprehensive model of four layered MINP + (metal-tunnel insulator - NP + semiconductor) structure incorporating an inhomogeneous impurity doping profile is…”
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    Journal Article Conference Proceeding
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    Effect of interface states on conversion efficiency of non-uniformly doped MIS solar cell by El-Sayeda, M. Abdel-Gawad, Abdel-Rady, Shaban

    Published in Desalination (30-04-2007)
    “…A comprehensive numerical model is prepared to simulate the performance of a MIS solar cell with nonuniform substrate doping profile. The effect of interface…”
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    Journal Article Conference Proceeding
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    Characterization of Al/SiO2/arbitrarily-doped pp+-Si solar cell by Shaban, M, El-Sayed, M A

    “…Al/SiO 2 /pp + -Si metal-insulator-semiconductor (MIS) solar cell device was simulated using a comprehensive numerical model. The semiconductor layer consists…”
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    Conference Proceeding