Characterization of mono- and multilayered films with Mn2+-doped ZnS nanoparticles and luminescence properties of the monolayered films prepared by applying magnetic fields

Hiroaki Yonemura, Michiko Yanagita, Masayuki Horiguchi, Shinichiro Nagamatsu, Sunao Yamada

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Mn2+-doped ZnS (ZnS:Mn) nanoparticles were prepared using bis(2-ethylhexyl) sulfosuccinate (AOT) reversed micelle method. Luminescence at 583-589 nm were observed in the ZnS:Mn nanoparticles and are ascribed to Mn2+ ion in the nanoparticles due to energy transfer from ZnS. The luminescence was enhanced by capping with alkanethiol. Mono-and multilayered films with the alkanethiol-capped ZnS:Mn nanoparticles were fabricated on quartz substrates by layer-by-layer method using self-assembled monolayer (SAM) of 1,6-hexanedithiol. The polarization degrees of luminescence for the monolayered films were enhanced by preparation under applying magnetic field. The enhancements are probably caused by magnetic orientation of the ZnS:Mn nanoparticles on the quartz substrates.

Original languageEnglish
Pages (from-to)2432-2437
Number of pages6
JournalThin Solid Films
Volume516
Issue number9
DOIs
Publication statusPublished - Mar 3 2008

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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