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

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 r...

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Autores principales: Nakano, Yoichiro, Yanase, Takashi, Nagahama, Taro, Yoshida, Hajime, Shimada, Toshihiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5066313/
https://www.ncbi.nlm.nih.gov/pubmed/27748431
http://dx.doi.org/10.1038/srep35408
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author Nakano, Yoichiro
Yanase, Takashi
Nagahama, Taro
Yoshida, Hajime
Shimada, Toshihiro
author_facet Nakano, Yoichiro
Yanase, Takashi
Nagahama, Taro
Yoshida, Hajime
Shimada, Toshihiro
author_sort Nakano, Yoichiro
collection PubMed
description 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.
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spelling pubmed-50663132016-10-26 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 Yoshida, Hajime Shimada, Toshihiro Sci Rep Article 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. Nature Publishing Group 2016-10-17 /pmc/articles/PMC5066313/ /pubmed/27748431 http://dx.doi.org/10.1038/srep35408 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Nakano, Yoichiro
Yanase, Takashi
Nagahama, Taro
Yoshida, Hajime
Shimada, Toshihiro
Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10(−6) g m(−2) day(−1) range
title Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10(−6) g m(−2) day(−1) range
title_full Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10(−6) g m(−2) day(−1) range
title_fullStr Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10(−6) g m(−2) day(−1) range
title_full_unstemmed Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10(−6) g m(−2) day(−1) range
title_short Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10(−6) g m(−2) day(−1) range
title_sort accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10(−6) g m(−2) day(−1) range
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5066313/
https://www.ncbi.nlm.nih.gov/pubmed/27748431
http://dx.doi.org/10.1038/srep35408
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