Open AccessStructural and Optical Properties of Sprayed Ba Doped CdS Nanostructure Thin Films
Author(s) -
Ehssan S. Hassan,
Dawood Majed Khudhair,
Shawki Khalaf Muhammad,
Ali Mohammed Jabbar,
Mohammed O. Dawood,
Nadir Fadhil Habubi,
Sami Salman Chiad
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1660/1/012066
Subject(s) - doping , materials science , crystallite , band gap , thin film , barium , analytical chemistry (journal) , atomic force microscopy , nanostructure , grain size , spray pyrolysis , chemical engineering , nanotechnology , optoelectronics , chemistry , composite material , metallurgy , chromatography , engineering
Pure and Barium doped Cadmium Sulphide (CdS) thin films are grown by the chemical spray pyrolysis (CSP) technique. The films are characterized using X-ray diffraction (XRD), UV-VIS spectroscopy and Atomic Force Microscope (AFM). The XRD shows that pure and doped films are polycrystalline. The average grain of films was found to increase with Barium doping. The optical investigation shows a small decrease in bandgap value for the doped films. The pure and 2% and 4% Ba doped films were found to have a bandgap of 2.43eV and 2.5 eV respectively.