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Title: Structural and optical properties of chemical deposition CdS thin films
Authors: Mahdi, M. A.
Kasem, S. J.
Hassen, J. J.
Swadi, A. A.
A l-Ani, S. K. J.
Keywords: Optical properties;CdS thin films;Structure;Thin films;Chemical bath deposition (CBD);Semiconductor films;Thin film devices
Issue Date: 2009
Publisher: Universiti Malaysia Perlis
Citation: International Journal of Nanoelectronics and Materials, vol.2 (2), 2009, pages 163-172.
Abstract: CdS thin films have been prepared by chemical bath deposition (CBD) method on glass substrates at solution temperature 80 oC. Cadmium acetate was used as a source of Cd+ 2 and thiourea as a source S-2. After three times of sequences deposition a 100 nm CdS thin films is obtained. The Structure of these films studied by X-Ray diffraction were polycrystalline hexagonal phase. The films exhibited high optical transmittance T~50-100 % and low reflectance in the wavelength (500-900)nm which make them useful as a transparent window in solar cells. The optical constants (n,k) were also calculated in the same spectrum region. The optical transitions were due to direct allowed in quantum mechanical sense. The value of the optical energy gap for the as deposited and annealed films was in the range (2.35-2.43) eV. Vacuum annealing at (200,300)oC improved the crystalline structure of the films.
Description: Link to publisher's homepage at http://ijneam.unimap.edu.my/
URI: http://hdl.handle.net/123456789/7121
ISSN: 1985-5761 (Printed)
1997-4434 (Online)
Appears in Collections:International Journal of Nanoelectronics and Materials (IJNeaM)

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