Visible electroluminescence from silicon nanoclusters embedded in chlorinated silicon nitride thin films

J. C. Alonso, F. A. Pulgarín, B. M. Monroy, A. Benami, M. Bizarro, A. Ortiz

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Visible electroluminescence (EL) has been obtained from devices with active layers of silicon nanocrystals embedded in chlorinated silicon nitride (Si-nc/SiNx:Cl) thin films, deposited by remote plasma enhanced chemical vapour deposition, using SiCl4/NH3/H2/Ar. The active nc-Si/SiNx:Cl film was sandwiched between Al contacts and a transparent conductive contact of ZnOx:Al deposited by the pyrosol process. White EL centred at around 600 nm was observed, with a turn-on voltage of 5 V, and the intensity increasing as a function of voltage. Recombination between electron-hole pairs generated in the Si-nc by electron impact ionization is proposed as the EL mechanism.

Original languageEnglish
Pages (from-to)3891-3893
Number of pages3
JournalThin Solid Films
Volume518
Issue number14
DOIs
StatePublished - 3 May 2010
Externally publishedYes

Keywords

  • Luminescence
  • Nanostructures
  • Plasma processing and deposition
  • Silicon
  • Silicon nitride

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