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Researchers from Al-Azhar University Report Recent Findings in Low Dimensional Structures

May 13, 2014



By a News Reporter-Staff News Editor at Physics Week -- Fresh data on Low Dimensional Structures are presented in a new report. According to news reporting originating from Cairo, Egypt, by VerticalNews correspondents, research stated, "Lead Selenide (PbSe) nanostructure thin films synthesized via inert gas condensation (IGC) technique. The structure of as-prepared PbSe nanostructure thin films, were studied using Grazing incident in-plane X-ray diffraction (GIIXD)."

Our news editors obtained a quote from the research from Al-Azhar University, "The study reveals that all films crystallized in cubic structure. The particle size (P-s) of the films, were calculated from X-ray diffraction to be similar to 5, 8 and 11 nm for film thicknesses 20,46 and 87 nm respectively which have been confirmed with those determined from transmission electron microscope (TEM) micrographs. The optical energy gap was found to be increases from 2.22 eV to 2.37 eV as particle size decreases from 11 nm to 5.5 nm."

According to the news editors, the research concluded: "In addition, the band tail width increased with decreasing the particle size but the refractive index increases with increasing the particle size of the prepared films."

For more information on this research see: Structural and optical properties of PbSe nanostructure thin films prepared by inert gas condensation. Physica E-Low-Dimensional Systems & Nanostructures, 2014;59():117-123. Physica E-Low-Dimensional Systems & Nanostructures can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands.

The news editors report that additional information may be obtained by contacting M.A. Mandy, Al Azhar Univ, Fac Sci Girls, Dept. of Phys, Cairo 11753, Egypt. Additional authors for this research include I.A. Mandy and E.A. Mahmoud.

Keywords for this news article include: Cairo, Egypt, Africa, Low Dimensional Structures

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Source: Physics Week


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