Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - A microstructural study of transparent metal oxide gas barrier films
AU - Henry, B. M.
AU - Dinelli, F.
AU - Zhao, K. Y.
AU - Grovenor, C. R. M.
AU - Kolosov, Oleg
AU - Briggs, G. Andrew D.
AU - Roberts, A. P.
AU - Kumar, R. S.
AU - Howson, R. P.
PY - 1999/11/1
Y1 - 1999/11/1
N2 - The relationship between the microstructure and the water vapour transmission rates of aluminium oxide and aluminium coatings deposited by magnetron sputtering on polyethylene terephthalate have been investigated. The gas barrier properties of the films have been measured as a function of temperature and a range of techniques used to characterize the coatings including atomic force microscopy, which also provided information on the early growth mechanism. It was found that the Al/PET film showed a better water vapour barrier than the AlOx/PET although the activation energy for water vapour permeation was the same for both. We propose that the interaction of water with the barrier coating plays a significant part in determining the observed gas barrier performance. (C) 1999 Elsevier Science S.A. All rights reserved.
AB - The relationship between the microstructure and the water vapour transmission rates of aluminium oxide and aluminium coatings deposited by magnetron sputtering on polyethylene terephthalate have been investigated. The gas barrier properties of the films have been measured as a function of temperature and a range of techniques used to characterize the coatings including atomic force microscopy, which also provided information on the early growth mechanism. It was found that the Al/PET film showed a better water vapour barrier than the AlOx/PET although the activation energy for water vapour permeation was the same for both. We propose that the interaction of water with the barrier coating plays a significant part in determining the observed gas barrier performance. (C) 1999 Elsevier Science S.A. All rights reserved.
KW - Aluminum oxide
KW - Aluminum coating
KW - Microstructure
KW - Gas barrier film
U2 - 10.1016/S0040-6090(99)00461-7
DO - 10.1016/S0040-6090(99)00461-7
M3 - Journal article
VL - 355-356
SP - 500
EP - 505
JO - Thin Solid Films
JF - Thin Solid Films
SN - 0040-6090
ER -