Accurate and stable equal-pressure measurements of water vapor transmission rate reaching the 10-6 g m-2 day-1 range.
Sci Rep
; 6: 35408, 2016 10 17.
Article
en En
| MEDLINE
| ID: mdl-27748431
ABSTRACT
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.
Texto completo:
1
Banco de datos:
MEDLINE
Idioma:
En
Año:
2016
Tipo del documento:
Article