Influence of the Deposition Temperature on the Structure, Morphology, and Optical Properties of Thermally Evaporated CdTe Thin Film

Shadia J. Ikhmayies, Sufian Abedrabbo, Bashar Lahlouh

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Optimizing the properties of CdTe improves the performance of the CdTe based solar cells such as the CdS/CdTe solar cell. This optimization can be performed by choosing the suitable deposition technique and the deposition parameters. In this work the influence of the deposition temperature on the structural, compositional, morphological, and optical properties of thermally evaporated CdTe thin films were investigated. X-ray diffraction (XRD), scanning electron microscopy supported by x-ray energy dispersive spectroscopy (EDS), and UV-vis spectroscopy were used for exploring the effect of deposition temperature on the films. XRD diffractograms had grown with deposition temperature, which means improvement of the crystallinity of the films. Transmittance, extinction coefficient, and refractive index didn’t show monotonic relations with deposition temperature. The bandgap was approximately not affected by deposition temperature. From the EDS analysis the composition of the films shows nearly stoichiometric ratios of Cd and Te.

Original languageBritish English
Pages (from-to)6901-6909
Number of pages9
JournalJournal of Electronic Materials
Volume48
Issue number11
DOIs
StatePublished - 1 Nov 2019

Keywords

  • Cadmium telluride
  • optical properties
  • solar cells
  • x-ray diffraction

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