Effect of deposition time on ZnS thin films properties by chemical bath deposition (CBD) techinique

Huda Abdullah, Norhabibi Saadah, Sahbuddin Shaari

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Zinc sulfide thin films were deposited on optical glass substrates by using chemical bath deposition (CBD) technique. The chemical bath contains the solutions of thiourea, zinc acetate, ammonia and sodium citrate. The deposition time of the samples were varied from 18 hours to 39 hours. SEM, XRD and UV-Vis-NIR were used to characterize the samples. SEM shows the films are thicker and have bigger grains size at 39 hours of deposition time compared to the film at 18 hours of deposition time in the range of 37.0 to 56.0 nm as the deposition time increases. X-ray diffraction (XRD) pattern prove that ZnS thin films are in disordered since it does not revealing any peaks and the surface of ZnS thin films are amorphous. UV-Vis spectra showed that the deposited ZnS thin films have more than 100% transmittance in the visible region and direct band gap of deposited films are in range of 2.45 eV to 3.53 eV. Time increasing of deposition will slightly decrease the transmittance of the film.

Original languageEnglish
Pages (from-to)1087-1091
Number of pages5
JournalWorld Applied Sciences Journal
Volume19
Issue number8
DOIs
Publication statusPublished - 2012

Fingerprint

baths
thin films
transmittance
scanning electron microscopy
zinc sulfides
thioureas
citrates
thick films
ammonia
acetates
x rays
diffraction patterns
zinc
grain size
sodium
glass
diffraction

Keywords

  • Band gap
  • Chemical Bath Deposition (CBD)
  • Transmittance
  • Zinc sulfide

ASJC Scopus subject areas

  • General

Cite this

Effect of deposition time on ZnS thin films properties by chemical bath deposition (CBD) techinique. / Abdullah, Huda; Saadah, Norhabibi; Shaari, Sahbuddin.

In: World Applied Sciences Journal, Vol. 19, No. 8, 2012, p. 1087-1091.

Research output: Contribution to journalArticle

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