Optical and structural properties of Zn(1-x)FexS nanoparticles synthesized by chemical bath deposition method

S. Selmani, Huda Abdullah, S. Shaari, Roslan Abd. Shukor

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Nanoparticles of Zn(1-x)FexS with x = 0.0, 0.05, 0.1, 0.15, 0.2 and 0.3 were synthesized using the chemical bath deposition method, using tri-sodium citrate as a complexion agent. These nanoparticles were characterized using XRD, SEM, optical absorbance and photoluminescence. SEM micrographs of the films revealed the combination of Zn(1-x)Fe xS nanoparticles with an average particle size D ∼ 60.3 to 19.3 nm ± 0.01 nm for x = 0.0 to 0.3. X-ray diffraction patterns confirmed the nanocrystalline cubic ZnS phase formation. UV-visible spectrometer measurement showed high absorbance for Fe concentration x ≥ 0.15 in the wavelength range 325800 nm. However, for x ≤ 0.1, the absorbance of the films decreased with further increase of Fe concentration. From the absorbance data, the direct bandgap values have been calculated to be in the range Eg = 3.5 to 2.23 eV for x = 0.0 to 0.3. The bandgap decreased with the increase of Fe concentration in the films. The photoluminescence spectra of the films showed two emission peaks, the first in the low wavelengths due to band-to-band transition, and the second in the high wavelengths due to the transitions probabilities and to the concentration of Fe ions. Due to the quenching effect, the intensity of PL spectra decreased on further increase of Fe doping.

Original languageEnglish
Pages (from-to)101-105
Number of pages5
JournalFunctional Materials Letters
Volume4
Issue number1
DOIs
Publication statusPublished - Mar 2011

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Structural properties
Optical properties
Nanoparticles
Wavelength
Photoluminescence
Energy gap
Scanning electron microscopy
Diffraction patterns
Spectrometers
Quenching
Particle size
Sodium
Doping (additives)
Ions
X ray diffraction

Keywords

  • bandgap
  • Nanoparticles
  • quenching effect
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Optical and structural properties of Zn(1-x)FexS nanoparticles synthesized by chemical bath deposition method. / Selmani, S.; Abdullah, Huda; Shaari, S.; Abd. Shukor, Roslan.

In: Functional Materials Letters, Vol. 4, No. 1, 03.2011, p. 101-105.

Research output: Contribution to journalArticle

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