Densities and Surface Reaction Probabilities of Oxygen and Nitrogen Atoms during Sputter Deposition of ZnInON on ZnO

Koichi Matsushima, Tomoaki Ide, Keigo Takeda, Masaru Hori, Daisuke Yamashita, Hyunwoong Seo, Kazunori Koga, Masaharu Shiratani, Naho Itagaki

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Abstract

We report densities and surface reaction probabilities of O and N atoms during sputter deposition of ZnInON films on ZnO templates, measured via vacuum ultraviolet absorption spectroscopy. O density is almost constant of 4.5 × 1011 cm-3 irrespective of O2 gas flow rate, whereas N density increases sharply from 2.7 × 1011 cm-3 for O2 gas sccm to 7.7 × 1011 cm-3 for 0.6 sccm and it increases gradually 1011 cm-3 for 5 sccm. The surface reaction probability βO of O atoms on ZnInON increases significantly from 0.022 to 0.404 with increasing O2 gas flow rate from 0 to 5 sccm, whereas βN of N atoms on ZnInON decreases slightly from 0.018 to 0.006. The stoichiometric chemical compositional ratio of ZnInON films with [Zn]/([Zn] + [In]) = [O]/([O] + [N]) = 94% is obtained at βO=0.404 of O atoms. This stoichiometric compositional ZnInON films grow coherently on ZnO templates, while nonstoichiometric films do not. The stoichiometric chemical composition is the key to coherent growth of ZnInON films.

Original languageEnglish
Article number7828157
Pages (from-to)323-327
Number of pages5
JournalIEEE Transactions on Plasma Science
Volume45
Issue number2
DOIs
Publication statusPublished - Feb 1 2017

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nitrogen atoms
surface reactions
oxygen atoms
gas flow
atoms
templates
flow velocity
ultraviolet absorption
ultraviolet spectroscopy
absorption spectroscopy
chemical composition
vacuum
gases

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Densities and Surface Reaction Probabilities of Oxygen and Nitrogen Atoms during Sputter Deposition of ZnInON on ZnO. / Matsushima, Koichi; Ide, Tomoaki; Takeda, Keigo; Hori, Masaru; Yamashita, Daisuke; Seo, Hyunwoong; Koga, Kazunori; Shiratani, Masaharu; Itagaki, Naho.

In: IEEE Transactions on Plasma Science, Vol. 45, No. 2, 7828157, 01.02.2017, p. 323-327.

Research output: Contribution to journalArticle

Matsushima, Koichi ; Ide, Tomoaki ; Takeda, Keigo ; Hori, Masaru ; Yamashita, Daisuke ; Seo, Hyunwoong ; Koga, Kazunori ; Shiratani, Masaharu ; Itagaki, Naho. / Densities and Surface Reaction Probabilities of Oxygen and Nitrogen Atoms during Sputter Deposition of ZnInON on ZnO. In: IEEE Transactions on Plasma Science. 2017 ; Vol. 45, No. 2. pp. 323-327.
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N2 - We report densities and surface reaction probabilities of O and N atoms during sputter deposition of ZnInON films on ZnO templates, measured via vacuum ultraviolet absorption spectroscopy. O density is almost constant of 4.5 × 1011 cm-3 irrespective of O2 gas flow rate, whereas N density increases sharply from 2.7 × 1011 cm-3 for O2 gas sccm to 7.7 × 1011 cm-3 for 0.6 sccm and it increases gradually 1011 cm-3 for 5 sccm. The surface reaction probability βO of O atoms on ZnInON increases significantly from 0.022 to 0.404 with increasing O2 gas flow rate from 0 to 5 sccm, whereas βN of N atoms on ZnInON decreases slightly from 0.018 to 0.006. The stoichiometric chemical compositional ratio of ZnInON films with [Zn]/([Zn] + [In]) = [O]/([O] + [N]) = 94% is obtained at βO=0.404 of O atoms. This stoichiometric compositional ZnInON films grow coherently on ZnO templates, while nonstoichiometric films do not. The stoichiometric chemical composition is the key to coherent growth of ZnInON films.

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