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Optical absorption in annealed tin sulphide thin films

Evaporated thin sulphide thin films have been prepared onto glass substrate at room temperature. The films were subjected to long period annealing in running argon gas up to 36 hours. Optical absorption measurements were made on the as prepared and annealed films near the fundamental absorption edge...

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Main Authors: Sakrani, Samsudi, Deraman, Karim, D. Hutagalung, Sabar, Wahab, Yusof, Ismail , Bakar
Format: Article
Language:English
Published: Malaysian Solod State Science and Technology Society 1994
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/2670/2/optical_absorption_in_annealed_tin_sulphide_thin_films_MAss_v2.pdf
http://eprints.utm.my/id/eprint/2670/
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spelling my.utm.26702010-06-01T03:04:15Z http://eprints.utm.my/id/eprint/2670/ Optical absorption in annealed tin sulphide thin films Sakrani, Samsudi Deraman, Karim D. Hutagalung, Sabar Wahab, Yusof Ismail , Bakar QC Physics Evaporated thin sulphide thin films have been prepared onto glass substrate at room temperature. The films were subjected to long period annealing in running argon gas up to 36 hours. Optical absorption measurements were made on the as prepared and annealed films near the fundamental absorption edge over the visible light vision light regions. Absorption coefficient,  were found to be of the order 10-5 cm-1 which suggest the occurance of indirect optical transition. A further investigation on the (h)1/2 and (h)1/3 plots revealed the existence of indirect allowed and indirect forbidden transition near the absorbtion edge respectively. The resulting optical band gap of the former were found to be 1.33 eV (as prepared) and between 1.59- 2.01 eV (annealed films) and this values were associated with compositional changes during annealing; the mainly SnS stoichiometric composition of the as prepared films was gradually disproportionated to SnS2 and completion of the course took place at the end 20 hours annealing. The optical band gap of 2.01 eV was in good agreement with those measured earlier on SnS2 in both thin film and bulk forms. Malaysian Solod State Science and Technology Society 1994 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/2670/2/optical_absorption_in_annealed_tin_sulphide_thin_films_MAss_v2.pdf Sakrani, Samsudi and Deraman, Karim and D. Hutagalung, Sabar and Wahab, Yusof and Ismail , Bakar (1994) Optical absorption in annealed tin sulphide thin films. Journal of solid state science and technology, 2 (2). pp. 66-77. ISSN 0128-8393
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QC Physics
spellingShingle QC Physics
Sakrani, Samsudi
Deraman, Karim
D. Hutagalung, Sabar
Wahab, Yusof
Ismail , Bakar
Optical absorption in annealed tin sulphide thin films
description Evaporated thin sulphide thin films have been prepared onto glass substrate at room temperature. The films were subjected to long period annealing in running argon gas up to 36 hours. Optical absorption measurements were made on the as prepared and annealed films near the fundamental absorption edge over the visible light vision light regions. Absorption coefficient,  were found to be of the order 10-5 cm-1 which suggest the occurance of indirect optical transition. A further investigation on the (h)1/2 and (h)1/3 plots revealed the existence of indirect allowed and indirect forbidden transition near the absorbtion edge respectively. The resulting optical band gap of the former were found to be 1.33 eV (as prepared) and between 1.59- 2.01 eV (annealed films) and this values were associated with compositional changes during annealing; the mainly SnS stoichiometric composition of the as prepared films was gradually disproportionated to SnS2 and completion of the course took place at the end 20 hours annealing. The optical band gap of 2.01 eV was in good agreement with those measured earlier on SnS2 in both thin film and bulk forms.
format Article
author Sakrani, Samsudi
Deraman, Karim
D. Hutagalung, Sabar
Wahab, Yusof
Ismail , Bakar
author_facet Sakrani, Samsudi
Deraman, Karim
D. Hutagalung, Sabar
Wahab, Yusof
Ismail , Bakar
author_sort Sakrani, Samsudi
title Optical absorption in annealed tin sulphide thin films
title_short Optical absorption in annealed tin sulphide thin films
title_full Optical absorption in annealed tin sulphide thin films
title_fullStr Optical absorption in annealed tin sulphide thin films
title_full_unstemmed Optical absorption in annealed tin sulphide thin films
title_sort optical absorption in annealed tin sulphide thin films
publisher Malaysian Solod State Science and Technology Society
publishDate 1994
url http://eprints.utm.my/id/eprint/2670/2/optical_absorption_in_annealed_tin_sulphide_thin_films_MAss_v2.pdf
http://eprints.utm.my/id/eprint/2670/
_version_ 1643643624189067264
score 13.211869

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