Barrier properties of Al2O3 and alucone coatings and nanolaminates on flexible biopolymer films

Mika Vähä-Nissi (Corresponding Author), Pia Sundberg (Corresponding Author), Emilia Kauppi (Corresponding Author), Terhi Hirvikorpi, Jenni Sievänen, Anjali Sood, Maarit Karppinen, Ali Harlin

Research output: Contribution to journalArticleScientificpeer-review

42 Citations (Scopus)

Abstract

Thin atomic layer deposited (ALD) Al2O3 coatings are efficient barriers against gases and vapors. Al2O3 coatings are, however, brittle and straining them generates defects that impair barrier properties. Flexibility of ALD-grown Al2O3 coatings on biopolymer substrates can be improved by separating thinner Al2O3 layers with inorganic-organic alucone layers. The number and size of defects were smaller for these nanolaminates compared to the thick Al2O3 films after straining, and hence straining deteriorated the oxygen barrier properties less when applied to the laminates than when applied to the Al2O3 coatings
Original languageEnglish
Pages (from-to)6780-6785
JournalThin Solid Films
Volume520
Issue number22
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

Fingerprint

Biopolymers
biopolymers
coatings
Coatings
Defects
defects
Thick films
laminates
thick films
Laminates
flexibility
Gases
Vapors
vapors
Oxygen
oxygen
Substrates
gases

Keywords

  • Alucone
  • barrier
  • hybrid
  • laminate
  • straining
  • thin film

Cite this

Vähä-Nissi, Mika ; Sundberg, Pia ; Kauppi, Emilia ; Hirvikorpi, Terhi ; Sievänen, Jenni ; Sood, Anjali ; Karppinen, Maarit ; Harlin, Ali. / Barrier properties of Al2O3 and alucone coatings and nanolaminates on flexible biopolymer films. In: Thin Solid Films. 2012 ; Vol. 520, No. 22. pp. 6780-6785.
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title = "Barrier properties of Al2O3 and alucone coatings and nanolaminates on flexible biopolymer films",
abstract = "Thin atomic layer deposited (ALD) Al2O3 coatings are efficient barriers against gases and vapors. Al2O3 coatings are, however, brittle and straining them generates defects that impair barrier properties. Flexibility of ALD-grown Al2O3 coatings on biopolymer substrates can be improved by separating thinner Al2O3 layers with inorganic-organic alucone layers. The number and size of defects were smaller for these nanolaminates compared to the thick Al2O3 films after straining, and hence straining deteriorated the oxygen barrier properties less when applied to the laminates than when applied to the Al2O3 coatings",
keywords = "Alucone, barrier, hybrid, laminate, straining, thin film",
author = "Mika V{\"a}h{\"a}-Nissi and Pia Sundberg and Emilia Kauppi and Terhi Hirvikorpi and Jenni Siev{\"a}nen and Anjali Sood and Maarit Karppinen and Ali Harlin",
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Vähä-Nissi, M, Sundberg, P, Kauppi, E, Hirvikorpi, T, Sievänen, J, Sood, A, Karppinen, M & Harlin, A 2012, 'Barrier properties of Al2O3 and alucone coatings and nanolaminates on flexible biopolymer films', Thin Solid Films, vol. 520, no. 22, pp. 6780-6785. https://doi.org/10.1016/j.tsf.2012.07.025

Barrier properties of Al2O3 and alucone coatings and nanolaminates on flexible biopolymer films. / Vähä-Nissi, Mika (Corresponding Author); Sundberg, Pia (Corresponding Author); Kauppi, Emilia (Corresponding Author); Hirvikorpi, Terhi; Sievänen, Jenni; Sood, Anjali; Karppinen, Maarit; Harlin, Ali.

In: Thin Solid Films, Vol. 520, No. 22, 2012, p. 6780-6785.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Vähä-Nissi, Mika

AU - Sundberg, Pia

AU - Kauppi, Emilia

AU - Hirvikorpi, Terhi

AU - Sievänen, Jenni

AU - Sood, Anjali

AU - Karppinen, Maarit

AU - Harlin, Ali

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AB - Thin atomic layer deposited (ALD) Al2O3 coatings are efficient barriers against gases and vapors. Al2O3 coatings are, however, brittle and straining them generates defects that impair barrier properties. Flexibility of ALD-grown Al2O3 coatings on biopolymer substrates can be improved by separating thinner Al2O3 layers with inorganic-organic alucone layers. The number and size of defects were smaller for these nanolaminates compared to the thick Al2O3 films after straining, and hence straining deteriorated the oxygen barrier properties less when applied to the laminates than when applied to the Al2O3 coatings

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KW - barrier

KW - hybrid

KW - laminate

KW - straining

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