Photoluminescence studies on CdS-CBD films grown by using different S/Cd ratios

J. Aguilar-Hernández, J. Sastre-Hernández, N. Ximello-Quiebras, R. Mendoza-Pérez, O. Vigil-Galán, G. Contreras-Puente, M. Cárdenas-García

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

In this work, we present studies of photoluminescence at room temperature of CdS films grown by the chemical bath deposition technique. Usually, as-grown CdS-CBD samples do not show luminescence at room temperature because of the high density of recombination centers due to many defects generated during the growth process. The change of the S/Cd ratio allows to control the density of defects giving rise to a better quality CdS-CBD films, which can show luminescence at room temperature. Depending on the S/Cd ratio, an evolution and improvement of the photoluminescence signal at room temperature is observed.

Original languageEnglish
Pages (from-to)143-146
Number of pages4
JournalThin Solid Films
Volume511-512
DOIs
StatePublished - 26 Jul 2006

Keywords

  • CdS
  • Chemical bath deposition
  • Photoluminescence

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