Effects of thermal annealing on structural and optical properties of sputtered CdS thin films for photovoltaic application

M. A. Islam, M. S. Hossain, M. M. Aliyu, J. Husna, M. R. Karim, Kamaruzzaman Sopian, Nowshad Amin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

The structural and optical properties of annealed CdS are studied in this work. The CdS films are deposited on ITO coated glasses by sputtering at different substrate temperatures and subsequently annealed in an O 2/N2 ambient. It has been observed from XRD diffraction that the films show a trend of conversion from poly crystalline to amorphous or mixed phases after annealing. The films fabricated at room temperature (RT) have been found in complete amorphous form. The surface roughness of the films drastically increased due to thermal annealing observed from AFM images. Optical properties of the films were observed using UV-Vis spectrometer and band gaps of the films were found in the range of 2.80 to 3.08 eV. The annealed films exhibited the blue shift in the direct allowed transition energy band gaps, possibly due to the oxygen incorporation during annealing suggesting the transformation to CdS:O films.

Original languageEnglish
Title of host publicationConference Record of the IEEE Photovoltaic Specialists Conference
Pages151-155
Number of pages5
DOIs
Publication statusPublished - 2012
Event38th IEEE Photovoltaic Specialists Conference, PVSC 2012 - Austin, TX
Duration: 3 Jun 20128 Jun 2012

Other

Other38th IEEE Photovoltaic Specialists Conference, PVSC 2012
CityAustin, TX
Period3/6/128/6/12

Fingerprint

Structural properties
Optical properties
Annealing
Thin films
Energy gap
Ultraviolet spectrometers
Hot Temperature
Electron transitions
Band structure
Sputtering
Diffraction
Surface roughness
Crystalline materials
Glass
Temperature
Oxygen
Substrates

Keywords

  • band gap
  • cadmium sulphide
  • sputtering
  • thermal annealing
  • thin film

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

Cite this

Islam, M. A., Hossain, M. S., Aliyu, M. M., Husna, J., Karim, M. R., Sopian, K., & Amin, N. (2012). Effects of thermal annealing on structural and optical properties of sputtered CdS thin films for photovoltaic application. In Conference Record of the IEEE Photovoltaic Specialists Conference (pp. 151-155). [6317589] https://doi.org/10.1109/PVSC.2012.6317589

Effects of thermal annealing on structural and optical properties of sputtered CdS thin films for photovoltaic application. / Islam, M. A.; Hossain, M. S.; Aliyu, M. M.; Husna, J.; Karim, M. R.; Sopian, Kamaruzzaman; Amin, Nowshad.

Conference Record of the IEEE Photovoltaic Specialists Conference. 2012. p. 151-155 6317589.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Islam, MA, Hossain, MS, Aliyu, MM, Husna, J, Karim, MR, Sopian, K & Amin, N 2012, Effects of thermal annealing on structural and optical properties of sputtered CdS thin films for photovoltaic application. in Conference Record of the IEEE Photovoltaic Specialists Conference., 6317589, pp. 151-155, 38th IEEE Photovoltaic Specialists Conference, PVSC 2012, Austin, TX, 3/6/12. https://doi.org/10.1109/PVSC.2012.6317589
Islam MA, Hossain MS, Aliyu MM, Husna J, Karim MR, Sopian K et al. Effects of thermal annealing on structural and optical properties of sputtered CdS thin films for photovoltaic application. In Conference Record of the IEEE Photovoltaic Specialists Conference. 2012. p. 151-155. 6317589 https://doi.org/10.1109/PVSC.2012.6317589
Islam, M. A. ; Hossain, M. S. ; Aliyu, M. M. ; Husna, J. ; Karim, M. R. ; Sopian, Kamaruzzaman ; Amin, Nowshad. / Effects of thermal annealing on structural and optical properties of sputtered CdS thin films for photovoltaic application. Conference Record of the IEEE Photovoltaic Specialists Conference. 2012. pp. 151-155
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