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Author Al Din, Nasser Saad ♦ Hussain, Nabiha ♦ Jandow, Nidhal
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword NANOSCIENCE AND NANOTECHNOLOGY ♦ CONCENTRATION RATIO ♦ CRYSTAL STRUCTURE ♦ DEPOSITION ♦ FCC LATTICES ♦ GLASS ♦ GRAIN ORIENTATION ♦ LEAD SULFIDES ♦ NANOSTRUCTURES ♦ OPTICAL PROPERTIES ♦ ORTHORHOMBIC LATTICES ♦ POLYCRYSTALS ♦ SCANNING ELECTRON MICROSCOPY ♦ SUBSTRATES ♦ SURFACES ♦ THICKNESS ♦ THIN FILMS ♦ TRANSMISSION ♦ X-RAY DIFFRACTION
Abstract Lead (II) Sulfide PbS thin films were deposited on glass substrates at 25°C by chemical bath deposition (CBD) method. The structural properties of the films were studied as a function of the concentration of Thiourea (CS (NH{sub 2}){sub 2}) as Source of Sulfide and deposition time. The surface morphology of the films was characterized by X-ray diffraction and SEM. The obtained results showed that the as-deposited films Polycrystalline had cubic crystalline phase that belong to S.G: Fm3m. We found that they have preferred orientation [200]. Also the thickness of thin films decrease with deposition time after certain value and, it observed free sulfide had orthorhombic phase. Optical properties showed that the thin films have high transmission at visible range and low transmission at UV, IR range. The films of PbS have direct band gap (I.68 - 2.32 ev) at 300 K the values of band energy decreases with increases thickness of the Lead (II) Sulfide films.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-07-25
Publisher Place United States
Volume Number 1758
Issue Number 1


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