Low-temperature plasma coating of electroluminescence particles with silicon nitride film

S. Yan, H. Maeda, Hayashi Jun-Ichiro, K. Kusakabe, S. Morooka, T. Okubo

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A Si3N4 thin film was deposited on ZnS phosphor particles of 18μm diameter in a silane-nitrogen radio-frequency (r.f.) plasma at 310-330 K. The particles were frequently shaken to maintain contact with plasma gas. The film deposited was characterized by X-ray photoelectron spectroscopy XPS, Fourier-transformed infrared spectroscopy and high-resolution scanning electron microscopy (SEM). The Si/N ratio of the film was about 1.25, and little change in the infrared spectrum was observed following the exposure in the ambient air for 10 days. The performance of the film as a diffusion barrier was evaluated by monitoring the lifetime of electroluminescence (EL). A film as thin as 50-60 nm could cover the EL powder without pinholes, and successfully protected the phosphor from water vapour.

Original languageEnglish
Pages (from-to)1829-1833
Number of pages5
JournalJournal of Materials Science
Volume28
Issue number7
DOIs
Publication statusPublished - Jan 1 1993

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Electroluminescence
Silicon nitride
Plasmas
Coatings
Phosphors
X ray photoelectron spectroscopy
Plasma Gases
Silanes
Temperature
Diffusion barriers
High resolution electron microscopy
Steam
Powders
Contacts (fluid mechanics)
Water vapor
Infrared spectroscopy
Nitrogen
Infrared radiation
Thin films
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Low-temperature plasma coating of electroluminescence particles with silicon nitride film. / Yan, S.; Maeda, H.; Jun-Ichiro, Hayashi; Kusakabe, K.; Morooka, S.; Okubo, T.

In: Journal of Materials Science, Vol. 28, No. 7, 01.01.1993, p. 1829-1833.

Research output: Contribution to journalArticle

Yan, S. ; Maeda, H. ; Jun-Ichiro, Hayashi ; Kusakabe, K. ; Morooka, S. ; Okubo, T. / Low-temperature plasma coating of electroluminescence particles with silicon nitride film. In: Journal of Materials Science. 1993 ; Vol. 28, No. 7. pp. 1829-1833.
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