Novel method of doping tungsten into zinc oxide ultrafine particle using RF plasma system

T. Sato, H. Suzuki, O. Kido, M. Kurumada, K. Kamitsuji, Y. Kimura, A. Takeda, S. Kaneko, Y. Saito, C. Kaito

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8 Citations (Scopus)

Abstract

A tungsten plate was set on a one-plate electrode in RF plasma, using parallel plates in a mixed gas of argon (9.75Torr) and oxygen (0.25Torr). Zn smoke was introduced into the plasma field. W atoms were doped in the ZnO smoke formation field in the RF plasma system. The resulting particles with a size of 30nm were identified to be hexagonal ZnO particles. The collected particles changed from white to yellow, i.e., W atoms were doped into ZnO particles. The image of the (0001) lattice, which is the forbidden reflection, appeared predominantly in the W-doped ZnO particle. Furthermore, by optical measurement, it was found that the existence of W atoms can control the recombination radiation due to the exciton. On the basis of high-resolution transmission electron microscopic images, the doped W positions are discussed as being in the commensurate configuration of W atoms in the ZnO crystal at positions equivalent to those in the cubic anti-fluoride structure.

Original languageEnglish
Pages (from-to)149-153
Number of pages5
JournalJournal of Crystal Growth
Volume265
Issue number1-2
DOIs
Publication statusPublished - 2004 Apr 15

Keywords

  • A1. Crystal structure
  • A1. Doping
  • A1. Nanostructures
  • B1. Zinc compounds

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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    Sato, T., Suzuki, H., Kido, O., Kurumada, M., Kamitsuji, K., Kimura, Y., Takeda, A., Kaneko, S., Saito, Y., & Kaito, C. (2004). Novel method of doping tungsten into zinc oxide ultrafine particle using RF plasma system. Journal of Crystal Growth, 265(1-2), 149-153. https://doi.org/10.1016/j.jcrysgro.2004.01.029