Ultrathin nanoparticle ZnS and ZnS: Mn films: Surface sol-gel synthesis, morphology, photophysical properties

N. I. Kovtyukhova, E. V. Buzaneva, C. C. Waraksa, T. E. Mallouk

Research output: Contribution to journalConference articlepeer-review

55 Scopus citations

Abstract

Ultrathin films of ZnS and Mn-doped ZnS were grown on silicon substrates using surface sol-gel reactions, and the film growth process was characterized by ellipsometry, atomic force microscopy, X-ray photoelectron spectroscopy, UV-visible absorbance and photoluminescence (PL) spectroscopy. The Si substrates were pre-treated by chemical oxidation. On the oxidized Si/SiOx surface, nanoparticulate films of ZnS and Mn-doped ZnS were grown by sequential immersion in aqueous metal acetate and sodium sulfide solutions. During the first four adsorption cycles, there was little film growth, but thereafter the amount of material deposited was linear with the number of adsorption cycles. This behavior is consistent with the formation of ZnS nuclei at low coverage, followed by particle growth in subsequent cycles. PL spectra are consistent with incorporation of Mn2+ into the ZnS nanoparticles.

Original languageEnglish (US)
Pages (from-to)411-417
Number of pages7
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume69
DOIs
StatePublished - Jan 14 2000
EventThe European Materials Research Society 1999 Spring Meeting, Symposium I: Microcrystalline and Nanocrystalline Semiconductors - Strasbourg, France
Duration: Jun 1 1999Jun 4 1999

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Ultrathin nanoparticle ZnS and ZnS: Mn films: Surface sol-gel synthesis, morphology, photophysical properties'. Together they form a unique fingerprint.

Cite this