Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10−6 g m−2 day−1 range

Nakano, Yoichiro; Yanase, Takashi; Nagahama, Taro et al.

Scientific Reports, 2016, 6, 35408

Permalink : https://hdl.handle.net/2115/63405

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アクセス権	open access
URI	https://hdl.handle.net/2115/63405
タイトル	Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10−6 g m−2 day−1 range
著者	Nakano, Yoichiro ; Yanase, Takashi ; Nagahama, Taro ; Yoshida, Hajime ; Shimada, Toshihiro
著者名 Nakano, Yoichiro
著者名 Yanase, Takashi
著者名 Nagahama, Taro
著者名 Yoshida, Hajime
e-Rad_Researcher 10262148 著者名 Shimada, Toshihiro
言語	英語
発行日	2016
出版者	Nature Publishing Group
収録物名	Scientific Reports
巻(号)	6
ページ	35408
抄録	The water vapor transmission rate (WVTR) of a gas barrier coating is a critically important parameter for flexible organic device packaging, but its accurate measurement without mechanical stress to ultrathin films has been a significant challenge in instrumental analysis. At the current stage, no reliable results have been reported in the range of 10−6 g m−2 day−1 that is required for organic light emitting diodes (OLEDs). In this article, we describe a solution for this difficult, but important measurement, involving enhanced sensitivity by a cold trap, stabilized temperature system, pumped sealing and calibration by a standard conductance element.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
EISSN	2045-2322
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1038/srep35408