Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : CBD method


Synthesis and Study of the Structural and Electrical Conductivity for Nanocrystalline PbS Thin Films

Ali M. Mousa; Selma M. Al-Jawad; SuadM.Kadhim Al-shammari

Engineering and Technology Journal, 2013, Volume 31, Issue 6, Pages 714-719

Structural and electrical properties of prepared nanocrystalline lead sulfide thin films were studied which deposited on glass substrates by chemical bath deposition (CBD) techniques. The films were obtained in a reaction bath at times of (15, 30, 45,60and90) min. The X-ray diffraction (XRD) and atomic force microscopy (AFM) measurements confirmed that the thin films grown by this technique had good crystalline cubic structures and homogeneous surfaces. The dc electrical conductivity found in the range of 10-6 -10-5 (Ω.cm)-1.

Structural and Optical Characterization of NanocrystallinePbs Thin Films Synthesized by CBDMethod

Ali M. Mousa; Selma M. Al-Jawad; Suad M.Kadhim Al-shammari

Engineering and Technology Journal, 2013, Volume 31, Issue 5, Pages 603-612

Nanocrystalline PbS thin films have been deposited on glass substrates by Chemical Bath Deposition (CBD) technique using lead acetate ,KoH, thiourea and T.E.A. The films were btained in a reaction bath at times of (15 ,30 ,45 ,60 and 90)min. Structure and surface morphology of thin films were characterized by X-ray diffraction and scanning electron microscopy (SEM). XRD indicates that the films have cubic structure. The crystallite size of the films were found to vary from (4.9 to 11.3 nm).The band gaps of the nanocrystalline PbS were determined from UV-Vis spectrophotometer and were found to be in the range( 1.72 -2.4 eV).