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Flexible organic–inorganic hybrid layer encapsulation for organic opto-electronic devices

Abstract : In this work we produce and study the flexible organic–inorganic hybrid moisture barrier layers for the protection of air sensitive organic opto-electronic devices. The inorganic amorphous silicon nitride layer (SiN$_x$:H) and the organic PMMA [poly (methyl methacrylate)] layer are deposited alternatingly by using hot wire chemical vapor deposition (HW-CVD) and spin-coating techniques, respectively. The effect of organic–inorganic hybrid interfaces is analyzed for increasing number of interfaces. We produce highly transparent (∼80% in the visible region) hybrid structures. The morphological properties are analyzed providing a good basis for understanding the variation of the water vapor transmission rate (WVTR) values. A minimum WVTR of 4.5×10$^{−5}$ g/m$^2$ day is reported at the ambient atmospheric conditions for 7 organic/inorganic interfaces. The hybrid barriers show superb mechanical flexibility which confirms their high potential for flexible applications.
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https://hal-cea.archives-ouvertes.fr/cea-01758732
Contributor : Serge Palacin <>
Submitted on : Wednesday, April 4, 2018 - 5:14:06 PM
Last modification on : Thursday, March 5, 2020 - 6:36:13 PM

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Subimal Majee, Maria Fátima Cerqueira, Denis Tondelier, Bernard Geffroy, Yvan Bonnassieux, et al.. Flexible organic–inorganic hybrid layer encapsulation for organic opto-electronic devices. Progress in Organic Coatings, Elsevier, 2014, 80, pp.27 - 32. ⟨10.1016/j.porgcoat.2014.11.015⟩. ⟨cea-01758732⟩

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