Passivation of organic-inorganic hybrid sol-gel

Oleg V. Mishechkin, Richard L. Davis, Li Fan, Dong Lu, Mahmoud Fallahi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A passivation method for improving long-term stability of organic-inorganic sol-gel material is reported. The effect is observed in experiments with two different passivation materials: Teflon AF and SiO2. A regime of material curing prior to the passivation is found to strongly affect the optical loss. The degradation of waveguide loss with time due to moisture adsorption from the atmosphere is drastically suppressed by coating the material with a thin silica film. The results indicate a long-term optical loss below 0.3 dB/cm in coated waveguides, significantly smaller than that in uncoated waveguides. The mechanism of the loss reduction is described and experimentally confirmed.

Original languageEnglish (US)
Pages (from-to)47-51
Number of pages5
JournalJournal of Sol-Gel Science and Technology
Volume34
Issue number1
DOIs
StatePublished - Apr 2005

Fingerprint

Passivation
passivity
Sol-gels
gels
Optical losses
waveguides
Waveguides
Electric losses
teflon (trademark)
Polytetrafluoroethylene
curing
Polytetrafluoroethylenes
moisture
Silicon Dioxide
Curing
Moisture
Silica
degradation
silicon dioxide
coatings

Keywords

  • Material stability
  • Optical loss
  • Organic-inorganic sol-gel
  • Waveguide

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Passivation of organic-inorganic hybrid sol-gel. / Mishechkin, Oleg V.; Davis, Richard L.; Fan, Li; Lu, Dong; Fallahi, Mahmoud.

In: Journal of Sol-Gel Science and Technology, Vol. 34, No. 1, 04.2005, p. 47-51.

Research output: Contribution to journalArticle

Mishechkin, Oleg V. ; Davis, Richard L. ; Fan, Li ; Lu, Dong ; Fallahi, Mahmoud. / Passivation of organic-inorganic hybrid sol-gel. In: Journal of Sol-Gel Science and Technology. 2005 ; Vol. 34, No. 1. pp. 47-51.
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