Measurement of Gas Transmission Rates through Gas Barrier Films

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  • ガスバリアフィルムのガス透過性の計測
  • ガスバリアフィルム ノ ガス トウカセイ ノ ケイソク

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<p>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.</p>

Journal

  • Vacuum and Surface Science

    Vacuum and Surface Science 62 (12), 724-730, 2019-12-10

    The Japan Society of Vacuum and Surface Science

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