Vacuum and Surface Science
Online ISSN : 2433-5843
Print ISSN : 2433-5835
Regular article
Measurement of Gas Transmission Rates through Gas Barrier Films
Yoshikazu TAKAHASHI
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2019 Volume 62 Issue 12 Pages 724-730

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Abstract

In order to put organic light emitting diodes (OLEDs) into practical use, high barrier films with 10-6 g m-2 day-1 level of water vapor transmission rate (WVTR) are required. Allthough various techniques for evaluating high gas barrier properties have been proposed, WVTR measurement methods with the detection limit of 10-6 g m-2 day-1 or less have not been developed so far. The author succeeded to develop a WVTR measurement unit to measure 10-6 g m-2 day-1 or less by applying ultra-high vacuum technologies. The measurement result of two gas barrier films with 10-6 g m-2 day-1 and 0.1 cc m-2 day-1 level of oxygen transmission rate (OTR), respectively, are shown.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc/4.0/deed.ja
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