Influence of plasma parameters on the properties of ultrathin Al2O3 films prepared by plasma enhanced atomic layer deposition below 100 °c for moisture barrier applications
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Japanese Journal of Applied Physics, Volume 57, issue 12
Abstract
We report the effect of plasma parameters on the properties of ultrathin Al2O3 films prepared by plasma enhanced atomic layer deposition for moisture barrier applications. The Al2O3 films were grown at 90 °C using trimethylaluminum and O2 plasma as precursors. Plasma power, exposure time and O2 concentration are found to influence the growth behavior, composition and density of ultrathin Al2O3 films. Plasma power ≥ 100 W leads to lower impurity levels and higher mass densities of ∼2.85 g•cm-3. The optimum plasma parameters for our process, a plasma power of 100 W and an exposure time of 3 s, reveal a good water vapor transmission rate of 5 × 10-3 g•m-2•day-1 for polyethylene naphthalate substrates coated with 4 nm-thick Al2O3 films.Description
Keywords
Other note
Citation
Zhu, Z, Sippola, P, Lipsanen, H, Savin, H & Merdes, S 2018, 'Influence of plasma parameters on the properties of ultrathin Al 2 O 3 films prepared by plasma enhanced atomic layer deposition below 100 °c for moisture barrier applications', Japanese Journal of Applied Physics, vol. 57, no. 12, 125502. https://doi.org/10.7567/JJAP.57.125502