NDLI: Laser processing of copper sulfide thin film prepared by spray pyrolysis

Content Provider	Springer Nature Link
Author	Mahmoud, F. A. Magdy, W. Gadallah, A. S. Nasr, Mahmoud Azzouz, I. M.
Copyright Year	2017
Abstract	Copper sulfide (Cu$_{2}$S) thin films were deposited by spray pyrolysis technique on glass substrate at 370 °C from aqueous solutions of copper chloride dehydrate (CuCl$_{2}$.2H$_{2}$O) and thiourea (SC(NH$_{2}$)$_{2}$). The sprayed film was blackish brown in color, well adhered to the substrate, pin-hole free and uniformly distributed. The film was treated by a laser beam of 805 nm. The structural, surface morphological, optical and electrical properties of the films were measured, before and after laser treatment, by means of X-ray diffraction, scanning electron microscopy SEM, EDAX, optical transmittance and reflectance and two point probe technique. XRD showed close structure of copper rich phase (chalcocite, Cu$_{2}$S) for both as-deposited and laser treated films. Laser treated film showed an increment in the crystallite size, proved by XRD and SEM image. It also showed a red shift in the optical band gap calculations, as well as, a higher electrical conductivity. The electrical conductivity of the sprayed Cu$_{2}$S films depends on the stoichiometry in the films. Both as-deposited and laser treated films showed highly absorber coefficient which may have the potential as absorber layer in solid state solar cells.
Starting Page	6284
Ending Page	6291
Page Count	8
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	28
Issue Number	8
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2017-01-21
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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